Convergent Synthesis of the HIJKLMN-Ring Fragment of Caribbean Ciguatoxin C-CTX-1 by a Late-Stage Reductive Olefin Coupling Approach
Sasaki, Makoto, Iwasaki, Kotaro, Arai, Keisuke, Hamada, Naoya, Umehara, Atsushi
Published in Bulletin of the Chemical Society of Japan (15.05.2022)
Published in Bulletin of the Chemical Society of Japan (15.05.2022)
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Journal Article
Stereoselective Synthesis of vic-Halohydrins via L-tert-Leucine-Catalyzed syn-Selective Aldol Reaction
Umehara, Atsushi, Kanemitsu, Takuya, Nagata, Kazuhiro, Itoh, Takashi
Published in Synlett (01.02.2012)
Published in Synlett (01.02.2012)
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Journal Article
Synthesis of Bulky N‐Acyl Heterocycles by DMAPO/Boc2O‐Mediated One‐Pot Direct N‐Acylation of Less Nucleophilic N‐Heterocycles with α‐Fully Substituted Carboxylic Acids
Umehara, Atsushi, Shimizu, Soma, Sasaki, Makoto
Published in Advanced synthesis & catalysis (18.07.2023)
Published in Advanced synthesis & catalysis (18.07.2023)
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Journal Article
Synthesis of Bulky N-Acyl Heterocycles by DMAPO/Boc2O-Mediated One-Pot Direct N-Acylation of Less Nucleophilic N-Heterocycles with a-Fully Substituted Carboxylic Acids
Umehara, Atsushi, Shimizu, Soma, Sasaki, Makoto
Published in Advanced synthesis & catalysis (18.07.2023)
Published in Advanced synthesis & catalysis (18.07.2023)
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Journal Article
Convergent and Scalable Synthesis of the ABCDE-Ring Fragment of Caribbean Ciguatoxin C‑CTX‑1
Sasaki, Makoto, Seida, Miku, Umehara, Atsushi
Published in Journal of organic chemistry (06.01.2023)
Published in Journal of organic chemistry (06.01.2023)
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Journal Article
Synthesis of Bulky N ‐Acyl Heterocycles by DMAPO/Boc 2 O‐Mediated One‐Pot Direct N ‐Acylation of Less Nucleophilic N ‐Heterocycles with α‐Fully Substituted Carboxylic Acids
Umehara, Atsushi, Shimizu, Soma, Sasaki, Makoto
Published in Advanced synthesis & catalysis (18.07.2023)
Published in Advanced synthesis & catalysis (18.07.2023)
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Journal Article
Condensation of Carboxylic Acids with Non-Nucleophilic N-Heterocycles and Anilides Using Boc(2)O
Umehara, Atsushi, Ueda, Hirofumi, Tokuyama, Hidetoshi
Published in Journal of organic chemistry (18.11.2016)
Published in Journal of organic chemistry (18.11.2016)
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Journal Article