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Results for 'Masataka Ihara'
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Iminoketene cycloaddition. 2. Total syntheses of arborine, glycosminine, and rutecarpine by condensation of iminoketene with amides
Publication Year: 1977
DOI: https://doi.org/10.1021/ja00449a047
Abstract:
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Authors:
Tetsuji Kametani
Chu Van Loc
T. HIGA
Masao Koizumi
Masataka Ihara
Keiichiro Fukumoto
Iminoketene cycloaddition. 1. A facile synthesis of quinazolone system by condensation of iminoketene with imines - a total synthesis of evodiamine and rutecarpine by retro mass-spectral synthesis
Publication Year: 1976
DOI: https://doi.org/10.1021/ja00436a019
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Authors:
Tetsuji Kametani
T. HIGA
Chu Van Loc
Masataka Ihara
Masao Koizumi
Keiichiro Fukumoto
Novel synthesis of the pyrrolizidine skeleton by sulfenocycloamination. Total synthesis of (.+-.)-retronecine and (.+-.)-turneforcidine
Publication Year: 1983
DOI: https://doi.org/10.1021/jo00169a005
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Authors:
Tatsushi Ohsawa
Masataka Ihara
Keiichiro Fukumoto
Tetsuji Kametani
Conformational analysis of the dibenzo[a,g]quinolizidines by spectroscopic methods
Publication Year: 1975
DOI: https://doi.org/10.1021/jo00910a027
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Authors:
Tetsuji Kametani
Keiichiro Fukumoto
Masataka Ihara
Akira Ujiie
Harumi Koizumi
Competitive reactions between sigmatropic reaction and cycloaddition affected by geometry of o-quinodimethanes
Publication Year: 1977
DOI: https://doi.org/10.1021/jo00436a003
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Authors:
Tetsuji Kametani
Masayoshi Tsubuki
Yuichi Shiratori
Yasuyuki Kato
Hideo Nemoto
Masataka Ihara
Keiichiro Fukumoto
Fumio Satoh
Hitoshi Inoue
Biotransformation of 1-benzyl-1,2,3,4-tetrahydro-2-methylisoquinolines into tetrahydroprotoberberines with rat liver enzymes
Publication Year: 1976
DOI: https://doi.org/10.1021/ja00423a051
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Authors:
Tetsuji Kametani
Makoto Takemura
Masataka Ihara
Keiichi Takahashi
Keiichiro Fukumoto
Studies on the syntheses of heterocyclic compounds. 700. Syntheses of isoquinoline alkaloids with cuprous chloride and oxygen in pyridine as an enzymic model
Publication Year: 1977
DOI: https://doi.org/10.1021/ja00453a047
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Authors:
T. KAMETANI
Masataka Ihara
Makoto Takemura
Yoshinari Satoh
Hiroaki Terasawa
Yoshiyuki Ohta
Keiichiro Fukumoto
Keiichi Takahashi
A novel cleavage of aryl benzyl ethers and allyl aryl ethers by sodium bis(2-methoxyethoxy)aluminum hydride. An alternative synthesis of pentazocine
Publication Year: 1976
DOI: https://doi.org/10.1021/jo00877a008
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Authors:
Tetsuji Kametani
Shyh-Pyng Huang
Masataka Ihara
Keiichiro Fukumoto
Studies on the syntheses of heterocyclic compounds. 657. Total synthesis of angustine, nauclefine, and gentianine
Publication Year: 1976
DOI: https://doi.org/10.1021/jo00877a007
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Authors:
Tetsuji Kametani
Mitsuhiro Takeshita
Masataka Ihara
Keiichiro Fukumoto
Studies on the syntheses of heterocyclic compounds. 715. Stevens rearrangement of cis- and trans-berbine methiodides by sodium bis(2-methoxyethoxy)aluminum hydride
Publication Year: 1977
DOI: https://doi.org/10.1021/jo00438a020
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Authors:
Tetsuji Kametani
Shyh-Pyng Huang
Chizuko Koseki
Masataka Ihara
Keiichiro Fukumoto
Tetsuji Kametani, Takayasu Nagahara, Yukio Suzuki, Shuichi Yokohama, Shyh-Pyng Huang and Masataka Ihara: Studies on the syntheses of heterocyclic compo
Publication Year: 1981
DOI: https://doi.org/10.1016/s0040-4020(01)92033-2
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Novel Methodologies for the Synthesis of Cyclic Carbonates
Publication Year: 2004
DOI: https://doi.org/10.1002/chem.200305583
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Authors:
Masahiro Yoshida
Masataka Ihara
A novel synthesis of benzo- and indolo[a]quinolizidines by intramolecular diels-alder reaction of l-azadienes
Publication Year: 1984
DOI: https://doi.org/10.1016/s0040-4039(01)81488-x
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Authors:
Masataka Ihara
Tomoko Kirihara
Akihiro Kawaguchi
Keiichiro Fukumoto
Tetsuji Kametani
A selective, sensitive probe for mercury(II) ions based on oxazine-thione
Publication Year: 2011
DOI: https://doi.org/10.1016/j.tetlet.2010.11.130
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Authors:
Qianqian Zhang
Jian‐Feng Ge
Qingfeng Xu
Xue-Bo Yang
Xueqin Cao
Najun Li
Jianmei Lu
Biosynthesis of vitamin B12: derivation of cobyrinic acid from uroporphyrinogen-III
Publication Year: 1975
DOI: https://doi.org/10.1039/c3975000436b
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Authors:
Alan R. Battersby
Masataka Ihara
Edward McDonald
Fumio Satoh
D. Clive Williams
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