Radical Cyclization by Ipso Substitution of the Methoxy Group: Considerable Effect of HMPA on Samarium-Mediated Cyclization
Ohno, Hiroaki, Wakayama, Ryutaro, Maeda, Shin-ichiro, Iwasaki, Hiroki, Okumura, Mitsuaki, Iwata, Chuzo, Mikamiyama, Hidenori, Tanaka, Tetsuaki
Published in Journal of organic chemistry (25.07.2003)
Published in Journal of organic chemistry (25.07.2003)
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Total Synthesis of the Antitumor Acetogenin Mosin B: Desymmetrization Approach to the Stereodivergent Synthesis of threo/trans/erythro-Type Acetogenins
Maezaki, Naoyoshi, Kojima, Naoto, Sakamoto, Atsunobu, Tominaga, Hiroaki, Iwata, Chuzo, Tanaka, Tetsuaki, Monden, Morito, Damdinsuren, Bazarragchaa, Nakamori, Shoji
Published in Chemistry : a European journal (20.01.2003)
Published in Chemistry : a European journal (20.01.2003)
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Construction of Tricyclic Enone, a Common Precursor for Aphidicolane and Stemodane B/C/D-Ring System
Tanaka, Tetsuaki, Yamamoto, Sachiko, Hiramatsu, Kei, Murakami, Kazuo, Yoshino, Hitoshi, Patra, Debasis, Iwata, Chuzo, Ohno, Hiroaki
Published in Chemical & pharmaceutical bulletin (2006)
Published in Chemical & pharmaceutical bulletin (2006)
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Journal Article
Asymmetric synthesis of (diene)Fe(CO) 3 complexes by a catalytic enantioselective alkylation using dialkylzincs
Takemoto, Yoshiji, Baba, Yasutaka, Honda, Asami, Nakao, Syusuke, Noguchi, Izumi, Iwata, Chuzo, Tanaka, Tetsuaki, Ibuka, Toshiro
Published in Tetrahedron (01.12.1998)
Published in Tetrahedron (01.12.1998)
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Journal Article
Utility of a Diene−Tricarbonyliron Complex as a Mobile Chiral Auxiliary: Regio- and Stereocontrolled Functionalization of Acyclic Diene Ligands
Takemoto, Yoshiji, Yoshikawa, Naoki, Baba, Yasutaka, Iwata, Chuzo, Tanaka, Tetsuaki, Ibuka, Toshiro, Ohishi, Hirofumi
Published in Journal of the American Chemical Society (06.10.1999)
Published in Journal of the American Chemical Society (06.10.1999)
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Journal Article
The First Total Synthesis of (±)-Scopadulin, an Antiviral Aphidicolane Diterpene
Rahman, S. M. Abdur, Ohno, Hiroaki, Murata, Takashi, Yoshino, Hitoshi, Satoh, Norifumi, Murakami, Kazuo, Patra, Debasis, Iwata, Chuzo, Maezaki, Naoyoshi, Tanaka, Tetsuaki
Published in Organic letters (22.02.2001)
Published in Organic letters (22.02.2001)
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Stereoselective synthesis of a 2,2,5-trisubstituted tetrahydropyran chiron via 1,3- and 1,6-asymmetric induction: A total synthesis of (−)-malyngolide
Maezaki, Naoyoshi, Matsumori, Yûki, Shogaki, Takeshi, Soejima, Motohiro, Ohishi, Hirofumi, Tanaka, Tetsuaki, Iwata, Chuzo
Published in Tetrahedron (22.10.1998)
Published in Tetrahedron (22.10.1998)
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Journal Article
Total Synthesis of (±)-Stemodinone via an Efficient Ring-Exchange Strategy
Tanaka, Tetsuaki, Murakami, Kazuo, Kanda, Atsushi, Patra, Debasis, Yamamoto, Sachiko, Satoh, Norifumi, Kim, Sang-Won, Rahman, S. M. Abdur, Ohno, Hiroaki, Iwata, Chuzo
Published in Journal of organic chemistry (19.10.2001)
Published in Journal of organic chemistry (19.10.2001)
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Journal Article
Stereoselective synthesis of a chiral synthon, 2,2,5-trisubstituted tetrahydropyran, based on simultaneous 1,3- and 1,6-asymmetric induction via nucleophilic acetal cleavage reaction of the bicyclic acetal: a total synthesis of (-)-malyngolide
Maezaki, N, Matsumori, Y, Shogaki, T, Soejima, M, Tanaka, T, Ohishi, H, Iwata, C
Published in Chemical communications (Cambridge, England) (1997)
Published in Chemical communications (Cambridge, England) (1997)
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Journal Article
Enantioselective Cu-catalyzed 1,4-addition of Me3Al to a 4,4-disubstituted cyclohexa-2,5-dienone
Takemoto, Yoshiji, Kuraoka, Satoru, Hamaue, Naoko, Aoe, Keiichi, Hiramatsu, Hajime, Iwata, Chuzo
Published in Tetrahedron (01.11.1996)
Published in Tetrahedron (01.11.1996)
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Journal Article
Novel asymmetric desymmetrization of meso-1,2-diols via diastereoselective β-elimination of chiral α-arylsulfinyl acetals
Naoyoshi, Maezaki, Motohiro, Soejima, Miwako, Takeda, Atsunobu, Sakamoto, Yûki, Matsumori, Tetsuaki, Tanaka, Chuzo, Iwata
Published in Tetrahedron (06.05.1996)
Published in Tetrahedron (06.05.1996)
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Journal Article
1, 6-Asymmetric Induction Utilizing Asymmetric Desymmetrization by Diastereoselective C-O Bond Fission of the 4-Substituted Bicyclic Acetal : Application to a Synthesis of (-)-Frontalin
MAEZAKI, Naoyoshi, SHOGAKI, Takeshi, UCHIDA, Masashi, TOKUNO, Katsuya, IMAMURA, Tsuneaki, TANAKA, Tetsuaki, IWATA, Chuzo
Published in Chemical & pharmaceutical bulletin (1998)
Published in Chemical & pharmaceutical bulletin (1998)
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Journal Article
Excellent Chiral Introduction by Diene Iron-Tricarbonyl Moiety. III : Asymmetric Synthesis of Hydroxyethylidene Dipeptide Isostere Using a Diastereoselective 1, 2-Nucleophilic Addition of Organocerium Reagents into a 1-Azatriene Fe(CO)3 Complex
TAKEMOTO, Yoshiji, TAKEUCHI, Jun, MATSUI, Eiki, IWATA, Chuzo
Published in Chemical & pharmaceutical bulletin (1996)
Published in Chemical & pharmaceutical bulletin (1996)
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Journal Article
Asymmetric Desymmetrization of Prochiral 1, 3-Diols via Diastereoselective C-O Bond Fission of Bicyclic Acetal Using a Chiral Sulfoxide as a Chiral Auxiliary
MAEZAKI, Naoyoshi, MURAKAMI, Manabu, SOEJIMA, Motohiro, TANAKA, Tetsuaki, IMANISHI, Takeshi, IWATA, Chuzo
Published in Chemical & pharmaceutical bulletin (1996)
Published in Chemical & pharmaceutical bulletin (1996)
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Journal Article
Studies on Novel and Chiral 1, 4-Dihydropyridines. I. Synthesis and Conformational Analysis of Novel NADH Model Compounds, N-Substituted (S)-3-(p-Tolylsulfinyl)-1, 4-dihydropyridines
IMANISHI, Takeshi, OBIKA, Satoshi, NISHIYAMA, Toshihiko, NISHIMOTO, Masahiro, HAMANO, Yoshimitsu, MIYASHITA, Kazuyuki, IWATA, Chuzo
Published in Chemical & pharmaceutical bulletin (1996)
Published in Chemical & pharmaceutical bulletin (1996)
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Journal Article
1, 6-Asymmetric Induction by Reductive Acetal Cleavage of a Bicyclic Acetal Using a Sulfinyl Chiral Auxiliary
MAEZAKI, Naoyoshi, SHOGAKI, Takeshi, IMAMURA, Tuneaki, TOKUNO, Katsuya, OHKUBO, Kazumi, TANAKA, Tatsuaki, IWATA, Chuzo
Published in Chemical & pharmaceutical bulletin (1998)
Published in Chemical & pharmaceutical bulletin (1998)
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Journal Article
Excellent Chiral Introduction by Diene Iron-Tricarbonyl Moiety. II : A Formal Synthesis of (+)- and (-)-Frontalin Using a Diastereoselective 1, 2-Nucleophilic Addition of Organometallics into a (Z)-Dienone Fe(CO)3 Complex
TAKEMOTO, Yoshiji, TAKEUCHI, Jun, MORIO, Ken-ichiro, NAKAMOTO, Takahisa, IWATA, Chuzo
Published in Chemical & pharmaceutical bulletin (1996)
Published in Chemical & pharmaceutical bulletin (1996)
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