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New Halocamphorsulfonic Acids

New Halocamphorsulfonic Acids

by NISHIKAWA, Masamoto
Published in Proceedings of the Japan Academy (1953)

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Eine merkwürdige Umlagerung der α-π-Dihalogen-campher

Eine merkwürdige Umlagerung der α-π-Dihalogen-campher

by NISHIKAWA, Masamoto
Published in Proceedings of the Japan Academy (1951)

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Synthesis of Camphor Derivatives. II: Isomerisation of α, π-Dihalocamphors with Fuming Sulfuric Acid. (1). Formation of x, x′-Dihalocamphors

Synthesis of Camphor Derivatives. II: Isomerisation of α, π-Dihalocamphors with Fuming Sulfuric Acid. (1). Formation of x, x′-Dihalocamphors

by Nishikawa, Masamoto
Published in YAKUGAKU ZASSHI (25.05.1952)

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Synthesis of Camphor Derivatives. VI: Isomerisation of α, π-Dihalocamphors with Fuming Sulfuric Acid. (5). χ-Chlorocamphor

Synthesis of Camphor Derivatives. VI: Isomerisation of α, π-Dihalocamphors with Fuming Sulfuric Acid. (5). χ-Chlorocamphor

by Nishikawa, Masamoto
Published in YAKUGAKU ZASSHI (25.05.1952)

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Synthesis of Camphor Derivatives. V: Isomerisation of α, π-Dihalocamphors with Fuming Sulfuric Acid. (4). Reduction of x, x′-Chlorobromocamphor and x, x′-Bromochlorocamphor with Zinc Dust and

Synthesis of Camphor Derivatives. V: Isomerisation of α, π-Dihalocamphors with Fuming Sulfuric Acid. (4). Reduction of x, x′-Chlorobromocamphor and x, x′-Bromochlorocamphor with Zinc Dust and

by Nishikawa, Masamoto
Published in YAKUGAKU ZASSHI (25.05.1952)

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Synthesis of Camphor Derivatives. III: Isomerisation of α, π-Dihalocamphors with Fuming Sulfuric Acid. (2). Skeleton of x, x′-Dihalocamphors

Synthesis of Camphor Derivatives. III: Isomerisation of α, π-Dihalocamphors with Fuming Sulfuric Acid. (2). Skeleton of x, x′-Dihalocamphors

by Nishikawa, Masamoto
Published in YAKUGAKU ZASSHI (25.05.1952)

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Synthesis of Camphor Derivatives. IV: Isomerisation of α, π-Dihalocamphors with Fuming Sulfuric acid. (3). Camphoric acid Derivatives from x, x′-Dihalocamphors

Synthesis of Camphor Derivatives. IV: Isomerisation of α, π-Dihalocamphors with Fuming Sulfuric acid. (3). Camphoric acid Derivatives from x, x′-Dihalocamphors

by Nishikawa, Masamoto
Published in YAKUGAKU ZASSHI (25.05.1952)

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Synthesis of Camphor Compounds. I: Synthesis of π-Iodocamphors by Means of Halogen Exchange

Synthesis of Camphor Compounds. I: Synthesis of π-Iodocamphors by Means of Halogen Exchange

by Nishikawa, Masamoto
Published in YAKUGAKU ZASSHI (25.03.1952)

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Journal Article

Steroids. VII: Microbiological Oxidation of Progesterone and 17α-Hydroxydesoxycorticosterone by Stemphylium botryosum

Steroids. VII: Microbiological Oxidation of Progesterone and 17α-Hydroxydesoxycorticosterone by Stemphylium botryosum

by Nishikawa, Masamoto, Hagiwara, Hikoichi
Published in YAKUGAKU ZASSHI (25.11.1958)

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Steroids. VI: Debromination of 9α-Bromo-11β-hydroxyprogesterone

Steroids. VI: Debromination of 9α-Bromo-11β-hydroxyprogesterone

by Nishikawa, Masamoto, Noguchi, Shunsaku
Published in YAKUGAKU ZASSHI (25.03.1958)

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Syntheses of Camphor Derivatives. IX: The Mechanism of Isomerisation of α, π-Dihalocamphor with Fuming Sulfuric Acid

Syntheses of Camphor Derivatives. IX: The Mechanism of Isomerisation of α, π-Dihalocamphor with Fuming Sulfuric Acid

by Nishikawa, Masamoto, Hagiwara, Hikoichi
Published in YAKUGAKU ZASSHI (25.03.1956)

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Synthesis of Camphor Derivatives. VII: Isomerisation of α, π-Dihalo-d-camphor with Fuming Sulfuric Acid. (suppl. 1). α, ω-Dihalo-d-camphor-trans-π-sulfonic Acid

Synthesis of Camphor Derivatives. VII: Isomerisation of α, π-Dihalo-d-camphor with Fuming Sulfuric Acid. (suppl. 1). α, ω-Dihalo-d-camphor-trans-π-sulfonic Acid

by Nishikawa, Masamoto, Hagiwara, Hikoichi
Published in YAKUGAKU ZASSHI (25.01.1954)

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Syntheses of Camphor Derivatives. VIII: Isomerisation of α, π-Dihalo-d-camphor with Fuming Sulfuric Acid. (Suppl. 2). α-trans-π-Dihalo-d-camphor-ω-sulforic Acid

Syntheses of Camphor Derivatives. VIII: Isomerisation of α, π-Dihalo-d-camphor with Fuming Sulfuric Acid. (Suppl. 2). α-trans-π-Dihalo-d-camphor-ω-sulforic Acid

by Nishikawa, Masamoto, Hagiwara, Hikoichi
Published in YAKUGAKU ZASSHI (25.01.1954)

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Hydroxylation of Steroids at C-11 Position by Fungi belonging to the Genus Corticium

Hydroxylation of Steroids at C-11 Position by Fungi belonging to the Genus Corticium

by HASEGAWA, Takezi, TAKAHASHI, Takeshi, NISHIKAWA, Masamoto, HAGIWARA, Hikoichi
Published in Bulletin of the Agricultural Chemical Society of Japan (1957)

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The Mechanism of Isomerization in the Camphor Series by Sulfuric Acid

The Mechanism of Isomerization in the Camphor Series by Sulfuric Acid

by MIKI, Takuichi, NISHIKAWA, Masamoto, HAGIWARA, Hikoichi
Published in Proceedings of the Japan Academy (1955)

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Über direkte π-Halogenierung des Cam hers

Über direkte π-Halogenierung des Cam hers

by NISHIMITSU, Hiroshi, NISHIKAWA, Masamoto, HAGIWARA, Hikoichi
Published in Proceedings of the Japan Academy (1951)

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Steroids. XII: Reductive Elimination of 16β-Hydroxyl and 16β-Acyloxyl Groups in 20-Ketosteroids

Steroids. XII: Reductive Elimination of 16β-Hydroxyl and 16β-Acyloxyl Groups in 20-Ketosteroids

by Nishikawa, Masamoto, Morita, Katsura, Noguchi, Shunsaku
Published in YAKUGAKU ZASSHI (25.09.1959)

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Journal Article

Syntheses of 6α-Hydroxy-11-ethoxycarbonyleusanton-4-enic Acid Lactone

Syntheses of 6α-Hydroxy-11-ethoxycarbonyleusanton-4-enic Acid Lactone

by Nishikawa, Masamoto, Hagiwara, Hikoichi, Morita, Katsura
Published in YAKUGAKU ZASSHI (25.02.1958)

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Syntheses of cis-Dihydrosantonin

Syntheses of cis-Dihydrosantonin

by Nishikawa, Masamoto, Hagiwara, Hikoichi, Morita, Katsura
Published in YAKUGAKU ZASSHI (25.02.1958)

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Enzymatic Hydrolysis of Steroidal Esters and its Application to Syntheses of Steroids

Enzymatic Hydrolysis of Steroidal Esters and its Application to Syntheses of Steroids

by Noguchi, Shunsaku, Morita, Katsura, Nishikawa, Masamoto
Published in Chemical & pharmaceutical bulletin (1960)

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