87. Synthesis of 2,3,6-Trisubstituted β-Carbolin-1-ones Utilizing 3-Amino-2-pyridone Synthesis
H. Masuda, H. Morishita, R. Sasaki, K. Takahata, K. Uemura, I. Hachiya*
ChemistrySelect 2022, 7 (21), e202201737. DOI: 10.1002/slct.202201737
86. Synthesis of 3,6-Disubstituted 4-Ethoxycarbonylpyranoindol-1ones Utilizing 3-Amino-2-pyrone Synthesis
K. Fukuoka, K. Imai, K. Hirano, S. Goto, R. Miura, I. Hachiya*
Asian Journal of Organic Chemistry 2022, 11 (6), e202200110. DOI: 10.1002/ajoc.202200110
85. Domino 1,4- and 1,4-Addition Reactions of Ketene Silyl Thioacetals to Dialkynyl Imines Promoted by Scandium Triflate: Synthesis of Multifunctionalized δ-Lactams
Y. Watanabe, K. Isaka, K. Sato, S. Kokado, A. Mizutani, I. Hachiya*
Asian Journal of Organic Chemistry 2022, 11 (1), e202100672. DOI: 10.1002/ajoc.202100672
84. Umpolung Reaction of α-Tosyloximino Ester Using a Flow System
K. Ota, S. Fukumoto, T. Iwase, I. Mizota, M. Shimizu,* I. Hachiya*
Synlett 2020, 31 (19), 1930−1936. DOI: 10.1055/s-0040-1707265
83. Synthesis of 2,3-Disubstituted 4‑Ethoxycarbonyl-β-carbolin-1-ones: Application to the Synthesis of SL651498 and Its Analogue
R. Miura, S. Goto, T. Hashimoto, I. Hachiya*
ACS Omega 2020, 5 (25), 15631−15656. DOI: 10.1021/acsomega.9b01199
82. Domino 1,4- and 1,6-Addition Reactions of Ketene Silyl Acetals to Dialkynyl Imines Promoted by Aluminum Chloride: Synthesis of Multifunctionalized β‑Lactams
I. Hachiya,* K. Nakamura, M. Hara, K. Sato, M. Shimizu*
The Journal of Organic Chemistry 2019, 84 (22), 14770−14794. DOI: 10.1021/acs.joc.9b02364
81. Titanium Tetraiodide/Trimethylsilyl Iodide Synergistically Induced Cyclization of N‑(2-Cyanophenyl)-benzamides into 2‑Aryl-4-Iodoquinazolines
I. Hachiya,* S. Nagoshi , M. Shimizu*
ACS Omega 2019, 4 (6), 10463−10473.DOI: 10.1021/acsomega.9b01199
80. Synthesis of α-Carbolines Using Palladium-Catalyzed Intramolecular Amination of 3-(2-Chlorophenyl)-2-Aminopyridines
I. Hachiya,* S. Shimada, M. Fukutomi, R. Miura, M. Shimizu*
ChemistrySelect 2019, 4 (2), 469−472.DOI: 10.1002/slct.201803948
79. Synthesis of 2-Aminopyridinium Salts from 2-Iminopyridines as a Starting Material
I. Hachiya, M. Fukutomi , N. Kugisaki, S. Shimada, M. Shimizu*
Heterocycles 2017, 94 (12), 2215-2221. DOI: 10.3987/COM-17-13816
78. Titanium Tetraiodide Induced Cyclization of Cyanoketones into 3-Aryl-1-iodoisoquinolines
K. Yashiro, K. Sakata, I. Hachiya M. Shimizu*
Heterocycles 2016, 92 (11), 2032-2046. DOI: 10.3987/COM-16-13560
77. Titanium Tetraiodide-mediated Diastereoselective Iodo-aldol and Mannich Reactions of γ-Alkoxy-α,β-alkynyl Ketone Derivatives
K. Yashiro, S. Ito, S. Kayaki, K. Sakata, I. Mizota, I. Hachiya, M. Shimizu*
Tetrahedron 2016, 72 (43), 6875-6885. DOI: 10.1016/j.tet.2016.09.020
76. of (±)-Muscopyridine Analogue Using Ring-Expansion Reaction of Cyclic β-Keto Ester via Conjugate Addition to Alkynyl Imine
I. Hachiya, N. Kugisaki, R. Agata, H. Matsumoto, Y. Yamada, M. Shimizu*
Tetrahedron 2015, 71 (35), 5824-5829. DOI: 10.1016/j.tet.2015.05.090
75. 2-Aryl-4-quinolone Synthesis Using the Thermal Rearrangement of Iminocyclobutenones
I. Hachiya, K. Yokoyama, A. Ito, M. Shimizu*
Heterocycles 2015, 90 (1), 97-103. DOI: 10.3987/COM-14-S(K)13
74. Chiral β-Lactam Synthesis through the Enantioselective Reduction of Iminocyclobutenones and the Thermal Rearrangement of Aminocyclobutenones
I. Hachiya, A. Ito, M. Shimizu*
Asian Journal of Organic Chemistry 2014, 3 (5), 614‑618. DOI: 10.1002/ajoc.201402005
73. Two-Step Synthesis of 3,4-Ethylenedioxythiophene (EDOT) from 2,3-Butanedione
I. Hachiya, T. Yamamoto, T. Inagaki, T. Matsumoto, A. Takahashi, I. Mizota, M. Shimizu*
Heterocycles 2014, 88 (1), 607-612. DOI: 10.3987/COM-13-S(S)8
72. Regioselective Ring-Opening Reaction of 2-Mono-Substituted Azetidin-3-ones Promoted by the Combined Use of Titanium Tetraiodide and Its Chloro or Bromo Counterpart
I. Hachiya, S. Ito, S. Kayaki, M. Shimizu*
Asian Journal of Organic Chemistry 2013, 2 (11), 931-934. DOI: 10.1002/ajoc.201300165
71. Synthesis of α-Amino Ketones and O-Alkyloximes by Titanium Tetrahalide Promoted Ring-Opening Reaction of 2-Mono-substituted Azetidin-3-ones and Their O-Alkyloximes
S. Ariga, S. Hata, D. Fukuda, T. Nishi, I. Hachiya, M. Shimizu*
Heterocycles 2012, 86 (2), 1187-1210.DOI: 10.3987/COM-12-S(N)74
70. Regioselective Ring-Opening Reaction of 2-Mono-Substituted Azetidin-3-ones Promoted by the Combined Use of Titanium Tetraiodide and Its Chloro or Bromo Counterpart
S. Hata, D. Fukuda, I. Hachiya, M. Shimizu*
Heterocycles 2012, 84 (1), 301-307. DOI: 10.3987/COM-11-S(P)26
69. Reductive Aminopropylation of Ketene Silyl (Thio)acetals Leading to the Synthesis of δ-Amino Esters
I. Mizota, S. Agatani, I. Hachiya, M. Shimizu*
Tetrahedron Letters 2011, 52 (41), 5388-5391. DOI: 10.1016/j.tetlet.2011.08.054
68. Double Nucleophilic Addition to Acrolein with Ketene Silyl Acetals and Allylborolanes Catalyzed by Proline
M. Shimizu,* M. Kawanishi, A. Itoh, I. Mizota, I. Hachiya
Chemistry Letters 2011, 40 (8), 862-863. DOI: 10.1246/cl.2011.862
67. Titanium Tetraiodide-Promoted Reductive Enolate Formation of α-Tosyloxy Ketone Derivatives and Aldol Reaction with Aldehydes
I. Hachiya, T. Inagaki, Y. Ishihara, M. Shimizu*
Bulletin of the Chemical Society of Japan 2011, 84 (4), 419-421.DOI: 10.1246/bcsj.20100363
66. Synthesis of 3,4-Ethylenedioxythiophene (EDOT) from (Z)-But-2-ene-1,4-diol or But-3-yne-1,4-diol
I. Hachiya, T. Matsumoto, T. Inagaki, A. Takahashi, M. Shimizu*
Heterocycles 2010, 82 (1), 449-460. DOI: 10.3987/COM-10-S(E)16
65. Titanium Tetraiodide-Promoted Tandem Prins Reaction of Alkynes with Acetals: Synthesis of (Z,Z)-1,5-Diiodo-1,3,5-triarylpenta-1,4-dienes
M. Shimizu,* K. Okura, T. Arai, I. Hachiya
Chemistry Letters 2010, 39 (10), 1052-1054. DOI: 10.1246/cl.2010.1052
64. Use of N-Allylidene-1,1-diphenylethanamine as a Latent Acrolein Synthon in the Double Nucleophilic Addition Reaction of Ketene Silyl (Thio)acetals and Allylborolanes
M. Shimizu,* M. Kawanishi, I. Mizota, I. Hachiya
Organic Letters 2010, 12 (16), 3571-3573. DOI: 10.1021/ol101061t
63. A New Method for the Synthesis of Multisubstituted Pyrroles of Biological Interest by Double Nucleophilic Addition to α,β-Unsaturated Imines
A. Takahashi, S. Kawai I. Hachiya, M. Shimizu*
European Journal of Organic Chemistry 2010, (1), 191-200. DOI: 10.1002/ejoc.200901055
62. Facile Synthesis and Ring-Opening of 4-(Tributylstannyl)pyrrolidine-2-carboxylates
M. Shimizu,* H. Ando, H. Shibuya, I. Hachiya
Heterocycles 2010, 80 (2), 773-778. DOI: 10.3987/COM-09-S(S)73
61. Reductive Aldol and Mannich-Type Reactions of Azetidin-3-ones Promoted by Titanium Tetraiodide
S. Hata, D. Fukuda, I. Hachiya, M. Shimizu*
Chemistry-An Asian Journal 2010, 5 (3), 473-477. DOI: 10.1002/asia.200900457
60. N-Allylideneamines Derived from Acrolein: Synthesis and Use as Acceptors of Two Nucleophiles
I. Mizota, Y. Matsuda, I. Hachiya, M. Shimizu*
European Journal of Organic Chemistry 2009, (24), 4073-4084. DOI:
59. Stereodivergent Synthesis of β-Lactams Using Thermal Rearrangement of Aminocyclobutenones
I. Hachiya, T. Yoshitomi, Y. Yamaguchi, M. Shimizu*
Organic Letters 2009, 11, (15), 3266-3268. DOI:
58. Titanium Tetraiodide Induced Cyclization of 2-(2-Cyanoalk-1-enyl)-β-keto Esters into 2-Iodopyridines
I. Hachiya, Y. Minami, M. Shimizu*
Heterocycles 2009, 79 (1), 365-371. DOI:
57. Regioselective Double Nucleophilic Addition Reaction Leading to the Synthesis of β-Lactams
A. Takahashi, S. Kawai, I. Hachiya, M. Shimizu*
Heterocycles 2008, 76 (1), 203-208. DOI:
56. Synthesis of N-Allylideneamines and Their Use for the Double Nucleophilic Addition of Ketene Silyl (Thio)acetals and Trimethylsilyl Cyanide
I. Mizota, Y. Matsuda, I. Hachiya, M. Shimizu*
Organic Letters 2008, 10 (18), 3977-3980. DOI:
55. Synthesis of Multi-Substituted 2-Iminopyridine Using Conjugate Addition of Ethyl Cyanoacetate Derivatives to Alkynyl Imines
I. Hachiya, Y. Minami, T. Aramaki, M. Shimizu*
European Journal of Organic Chemistry 2008, (8), 1411-1417. DOI:
54. 3-Iodo-3-trimethylsilylpropenal as a Useful Unit for Pinacol Coupling and Subsequent Functional Group Transformations
M. Shimizu,* H. Okimura, N. Manabe, I. Hachiya
Chemistry Letters 2008, 37 (1), 28-29. DOI:
53. Titanium Tetraiodide Promoted Reductive Opening of 2-(1-Benzyloxyiminoethyl)aziridines, Leading to Aza-Aldol Reaction
M. Shimizu,* S. Nishiura, I. Hachiya
Heterocycles 2007, 74 (1), 177-183. DOI:
52. Diastereoselective Approach to an HIV Protease Inhibitor Intermediate Using a Cation-Exchange Resin Mediated Mannich-Type Reaction
M. Shimizu,* Y. Hayashi, R. Hamanaka, I. Hachiya
Heterocycles 2007, 74 (1), 177-183. DOI:
51. Stereodivergent Synthesis of Both (2S)- and (2R)-1-Monoricinolein Derivatives by Lipase-Catalyzed Hydrolysis or Transesterification Directed to New Ferroelectric Liquid Crystals
I. Hachiya, Y. Sugiura, H. Araki, O. Inaoka, M. Shimizu,* M. Akita, T. Hamaguchi
Tetrahedron: Asymmetry 2007, 18 (8), 915-918. DOI:
50. Diastereoselective Reduction of α-Imino Esters with Tris(trimethylsilyl)aluminum
M. Shimizu,* Y. Niwa, T. Nagai, I. Hachiya
Heterocycles 2007, 72 (1),, 127-132. DOI:
49. Aza-Prins Reaction Promoted by Titanium Tetraiodide and Iodine
M. Shimizu,* T. Baba, S. Toudou, I. Hachiya
Chemistry Letters 2007, 36 (1), 12-13. DOI:
48. Ring Expansion Reaction of Cyclic β-Keto Esters or α-Cyano Ketones via Conjugate Addition to Alkynyl Imines: The Synthesis of Functionalized Medium-Sized Carbocycles
I. Hachiya, W. Maehara, Y. Yamada, T. Kamiki, M. Shimizu*
Synlett 2006, 17 (19), 3271-3274. DOI:
47. Titanium Tetraiodide Mediated Reductive Opening of Aziridines, Leading to the Aldol and Mannich-Type Reactions
M. Shimizu,* H. Kurokawa, S. Nishiura, I. Hachiya
Heterocycles 2006, 70 (1), 57-64. DOI:
46. 3,4,5,6-Tetrasubstituted-2-pyridone Synthesis via Nucleophilic Addition of Active Methine Compounds to Dialkynyl Imines Directed to the Synthesis of (-)-A58365A
I. Hachiya, S. Fukushima, M. Shimizu*
Heterocycles 2006, 69 (1), 43-48. DOI:
45. Remarkable Effects of Additives to Facilitate Aza-Mannich Type Reaction: A Rapid Access to β-Amino Ketone O-Alkyl Oximes
M. Shimizu,* M. Tanaka, T. Itoh, I. Hachiya
Synlett 2006, 17 (11), 1687-1690. DOI:
44. Synthesis of Bicyclic Compounds Containing a 2-Pyridone Structure by Addition of Malonic Esters to Alkynylpyridines, Pyrimidine, and Thiazoles
I. Hachiya, M. Atarashi, M. Shimizu*
Heterocycles 2006, 67 (2), 523-528. DOI:
43. A Cation-Exchange Resin Promoted Imino Aldol Reaction of Chiral Alkoxy Ketene Silyl Acetals with α,β-Unsaturated Imines, Leading to a Facile Synthesis of β-Lactams
M. Shimizu,* M. Tachi, S. Fukushima, I. Hachiya
Heterocycles 2005, 66 (1), 75-80. DOI:
42. Double Nucleophilic Addition of Trimethylsilyl Cyanide to α,β-Unsaturated Aldimines Promoted by Aluminum Chloride: Preparation of 2-Aminopentanedinitrile
M. Shimizu,* M. Kamiya, I. Hachiya
Chemistry Letters 2005, 34 (10), 1456-1457. DOI:
41. A Cation-Exchange Resin Promoted Imino Aldol Reaction, Leading to the Synthesis of 2-Isocephem and 2-Oxa-isocephem
M. Shimizu,* M. Tachi, I. Hachiya
Chemistry Letters 2004, 33 (10),, 1394-1395. DOI:
40. Stereodivergent Synthesis of (2R)-2,3-Diricinolein by Lipase-Catalyzed Hydrolysis of Triricinolein
I. Hachiya, A. Makino, M. Shimizu,* M. Akita, T. Hamaguchi
Tetrahedron: Asymmetry 2004, 15 (16), 2451-2454. DOI:
39. 3,4,6-Trisubstituted-2-pyrone Synthesis via the Nucleophilic Addition of 2-Alkyl Meldrum’s Acid to Alkynyl Ketone
I. Hachiya, H. Shibuya, K. Hanai, M. Shimizu*
Letters in Organic Chemistry 2004, 1 (4), 233- 236. DOI:
38. Synthesis of 5-Acetyl-2-pyridones via Nucleophilic Addition of β-Ketoesters to Alkynyl Imines
I. Hachiya, K. Ogura, M. Shimizu*
Synthesis 2004, 36 (9), 1349-1352. DOI:
37. Double Nucleophilic Addition of Ketene Silyl (Thio)acetals and Trimethylsilyl Cyanide to α,β-Unsaturated Aldimines Promoted by Aluminum Chloride
M. Shimizu,* M. Kamiya, I. Hachiya
Chemistry Letters 2003, 32 (7), 606-607. DOI:
36. Novel 2-Pyrone Synthesis via the Nucleophilic Addition of Active Methine Compounds to 2-Alkynone
I. Hachiya, H. Shibuya, M. Shimizu*
Tetrahedron Letters 2003, 44 (10), 2061-2063. DOI:
35. Novel 2-Pyridone Synthesis via Nucleophilic Addition of Malonic Esters to Alkynyl Imines
I. Hachiya, K. Ogura, M. Shimizu*
Organic Letters 2002, 4 (16), 2755-2757. DOI:
34. Designed Ligands as Probes of the Catalytic Binding Mode in Mo-Catalyzed Asymmetric Allylic Alkylation
M. Trost,* K. Dogra, I. Hachiya, T. Emura, D. L. Hughes, S. Krska, R. A. Reamer, M. Palucki, N. Yasuda, P. J. Reider
Angewante Chemie International Edition 2002, 41 (11), 1929-1932. DOI:
33. Fluoride Ion-Mediated Intramolecular Aldol Cyclization of 7-(t-Butyldimethylsiloxy)-7-octenal
I. Hachiya, N. Kobayashi, H. Kijima, K. Pudhom, T. Mukaiyama*
Chemistry Letters 2000, 29 (8), 932-933. DOI:
32. A Novel Carbocationic Species Paired with Tetrakis(pentafluorophenyl)borate Anion in Catalytic Aldol Reaction
T. Mukaiyama,* M. Yanagisawa, D. Iida, I. Hachiya
Chemistry Letters 2000, 29 (6), 606-607. DOI:
31. An Effective Method for the Preparation of Optically Active Polyoxy 8-Membered Ring Enone Corresponding to B Ring of Taxol
I. Shiina, J. Shibata, Y. Imai, R. Ibuka, H. Fujisawa, I. Hachiya, T. Mukaiyama*
Chemistry Letters 1999, 28 (11), 1145-1146. DOI:
30. A Route to Z-Endiynes via Pd Catalyzed Alkyne Additions
B. M. Trost,* I. Hachiya, M. C. McIntosh
Tetrahedron Letters 1998, 39 (36), 6445-6448. DOI:
29. Asymmetric Molybdenum-Catalyzed Alkylations
B. M. Trost,* I. Hachiya
Journal of the American Chemical Society 1998, 120 (5), 1104-1105. DOI:
28. The Catalytic Fries Rearrangement and o-Acylation Reactions Using Group 3 and 4 Metal Triflates as Catalysts
S. Kobayashi,* M. Moriwaki, I. Hachiya
Bulletin of the Chemical Society of Japan 1997, 70 (1), 267-273. DOI:
27. Parallel Synthesis Using Mannich-Type Three-Component Reactions and “Field Synthesis” for the Construction of an Amino Alcohol Library
S. Kobayashi,* M. Moriwaki, R. Akiyama, S. Suzuki, I. Hachiya
Tetrahedron Letters 1996, 37 (43), 7783-7786. DOI:
26. Aldol Reactions on Solid Phase. Sc(OTf)3-Catalyzed Aldol Reactions of Polymer-Supported Silyl Enol Ethers with Aldehydes Providing Convenient Methods for the Preparation of 1,3-Diol, β-Hydroxy Carboxylic Acid, and β-Hydroxy Aldehyde Libraries
S. Kobayashi,* I. Hachiya, M. Yasuda
Tetrahedron Letters 1996, 37 (31), 5569-5572. DOI:
25. Catalytic Direct C-Acylation of Phenol and Naphthol Derivatives Using Carboxylic Acids as Acylating Reagents
S. Kobayashi,* M. Moriwaki, I. Hachiya
Tetrahedron Letters 1996, 37 (24), 4183-4186. DOI:
24. Trichlorosilane-Dimethylformamide (Cl3SiH-DMF) as an Efficient Reducing Agent. Reduction of Aldehydes and Imines and Reductive Amination of Aldehydes under Mild Conditions Using Hypervalent Hydridosilicates
S. Kobayashi,* M. Yasuda, I. Hachiya
Chemistry Letters 1996, 25 (5), 407-408. DOI:
23. Polymer-Supported Silyl Enol Ethers. Synthesis and Reactions with Imines for the Preparation of an Amino Alcohol Library
S. Kobayashi,* I. Hachiya, S. Suzuki, M. Moriwaki
Tetrahedron Letters 1996, 37 (16), 2809-2812. DOI:
22. Hafnium Trifluoromethanesulfonate (Hf(OTf)4) as an Efficient Catalyst in the Fries Rearrangement and Direct Acylation of Phenol and Naphthol Derivatives
S. Kobayashi,* M. Moriwaki, I. Hachiya
Tetrahedron Letters 1996, 37 (12), 2053-2056. DOI:
21. 2-Acylation Reactions of Phenol and 1-Naphthol Derivatives Using Sc(OTf)3 as a Lewis Acid Catalyst
S. Kobayashi,* M. Moriwaki, I. Hachiya
Synlett 1995, 6 (11), 1153‑1154. DOI:
20. The Catalytic Fries Rearrangement of Acyloxy Naphthalenes Using Scandium Trifluoromethanesulfonate as a Catalyst
S. Kobayashi,* M. Moriwaki, I. Hachiya
Journal of the Chemical Society, Chemical Communications 1995, (15), 1527-1528. DOI:
19. Hafnium(IV) Trifluoromethanesulfonate, an Efficient Catalyst for the Friedel-Crafts Acylation and Alkylation Reactions
I. Hachiya, M. Moriwaki, S. Kobayashi*
Bulletin of the Chemical Society of Japan 1995, 68 (7), 2053-2060. DOI:
18. Molecular Recognition by Artificial Chiral Catalysts Utilizing a Metal Chelate. A Remarkable Difference in Reactivity Between Geometrical Isomers of Silyl Enolates in Asymmetric Aldol Reactions Using Chiral Tin(II) Catalysts
S. Kobayashi,* M. Horibe I. Hachiya
Tetrahedron Letters 1995, 36 (18), 3173-3176. DOI:
17. Activation of Imines by Rare Earth Metal Triflates. Ln(OTf)3– or Sc(OTf)3-Catalyzed Reactions of Imines with Silyl Enolates and Diels-Alder Reactions of Imines
S. Kobayashi,* M. Araki, H. Ishitani, S. Nagayama, I. Hachiya
Synlett 1995, 6 (3), 233‑234. DOI:
16. Catalytic Friedel-Crafts Acylation Reactions Using Hafnium Triflate as a Catalyst in Lithium Perchlorate-Nitromethane
I. Hachiya, M. Moriwaki, S. Kobayashi*
Tetrahedron Letters 1995, 36 (3), 409-412. DOI:
15. Asymmetric Diels-Alder Reactions Catalyzed by Chiral Lanthanide(III) Trifluoromethanesulfonates. Unique Structure of the Triflate and Stereoselective Synthesis of Both Enantiomers Using a Single Chiral Source and a Choice of Achiral Ligands
S. Kobayashi,* H. Ishitani, I. Hachiya, M. Araki
Tetrahedron 1994, 50 (40), 11623-11636. DOI:
14. Characterization of Chiral Ytterbium and Scandium Catalysts Based on Their Trifluoromethanesulfonates in Asymmetric Diels-Alder Reactions
S. Kobayashi,* H. Ishitani, M. Araki, I. Hachiya
Tetrahedron Letters 1994, 35 (34), 6325-6328. DOI:
13. A Chiral Scandium Catalyst for Enantioselective Diels-Alder Reactions
S. Kobayashi,* M. Araki, I. Hachiya
The Journal of Organic Chemistry 1994, 59 (14), 3758-3759. DOI:
12. Repeated Use of the Catalyst in Ln(OTf)3-Catalyzed Aldol and Allylation Reactions
S. Kobayashi,* I. Hachiya, Y. Yamanoi
Bulletin of the Chemical Society of Japan 1994, 67 (8), 2342-2344. DOI:
11. Lanthanide Triflates as Water-Tolerant Lewis Acids. Activation of Commercial Formaldehyde Solution and Use in the Aldol Reaction of Silyl Enol Ethers with Aldehydes in Aqueous Media
S. Kobayashi,* I. Hachiya
The Journal of Organic Chemistry 1994, 59 (13), 3590-3596. DOI:
10. Scandium(III) Perchlorate (Sc(ClO4)3). A Novel Catalyst in the α-C– and N-Glycosylation Reactions
I. Hachiya, S. Kobayashi*
Tetrahedron Letters 1994, 35 (20), 3319-3320. DOI:
9. Aqueous Reactions with a Lewis Acid and an Organometallic Reagent. The Scandium Trifluoromethanesulfonate-Catalyzed Allylation Reaction of Carbonyl Compounds with Tetraallyltin
I. Hachiya, S. Kobayashi*
The Journal of Organic Chemistry 1993, 58 (25), 6958-6960. DOI:
8. Scandium Trifluoromethanesulfonate (Sc(OTf)3) as a Novel Reusable Lewis Acid Catalyst in Aldol and Michael Reactions
S. Kobayashi,* I. Hachiya, H. Ishitani, M. Araki
Synlett 1993, 4 (7), 472‑474. DOI:
7. Asymmetric Diels-Alder Reaction Catalyzed by a Chiral Ytterbium Trifluoromethanesulfonate
S. Kobayashi,* I. Hachiya, H. Ishitani, M. Araki
Tetrahedron Letters 1993, 34 (28), 4535-4538. DOI:
6. Scandium Trifluoromethanesulfonate (Sc(OTf)3). A Novel Reusable Catalyst in the Diels-Alder Reaction
S. Kobayashi,* I. Hachiya, M. Araki, H. Ishitani
Tetrahedron Letters 1993, 34 (23), 3755-3758. DOI:
5. Lanthanide Trifluoromethanesulfonates as Reusable Catalysts. Aldol Reactions in Organic Solvents
S. Kobayashi,* I. Hachiya, T. Takahori
Synthesis 1993, 25 (4), 371-3734. DOI:
4. Lanthanide Trifluoromethanesulfonates as Reusable Catalysts. Michael and Diels-Alder Reactions
S. Kobayashi,* I. Hachiya, T. Takahori, M. Araki, H. Ishitani
Tetrahedron Letters 1992, 33 (45), 6815-6818. DOI:
3. The Aldol Reaction of Silyl Enol Ethers with Aldehyeds in Aqueous Media
S. Kobayashi,* I. Hachiya
Tetrahedron Letters 1992, 33 (12), 1625-1628. DOI:
2. Stereoselective Synthesis of Both Diastereomers of the α-Methyl-β-hydroxy-β-alkyl(aryl) Units by Use of Tin(II) Triflate-Mediated Aldol Reaction
S. Kobayashi,* I. Hachiya
The Journal of Organic Chemistry 1992, 57 (5), 1324-1326. DOI:
1. An Efficient Asymmetric Aldol Reaction Promoted by a Chiral Tin(II) Lewis Acid Consisting of Tin(II) Triflate, (R)-2-[(N-1-Naphthylamino)methyl]tetrahydrothiophene and a Tin(IV) Compound
T. Mukaiyam,* H. Asanuma, I. Hachiya, T. Harada, S. Kobayashi
Chemistry Letters 1991, 20 (7), 1209-1210. DOI: