GB190626190A - Improvements in the Manufacture and Production of Derivatives of 3-oxy-(1)-thionaphthene. - Google Patents

Improvements in the Manufacture and Production of Derivatives of 3-oxy-(1)-thionaphthene.

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Publication number
GB190626190A
GB190626190A GB190626190DA GB190626190A GB 190626190 A GB190626190 A GB 190626190A GB 190626190D A GB190626190D A GB 190626190DA GB 190626190 A GB190626190 A GB 190626190A
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United Kingdom
Prior art keywords
thionaphthene
derivatives
ketodihydro
phenylhydrazine
homologues
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Expired
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Inventor
James Yate Johnson
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Individual
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Individual
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Publication date
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Publication of GB190626190A publication Critical patent/GB190626190A/en
Expired legal-status Critical Current

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Abstract

26,190. Johnson, J. Y., [Badische Anilin & Soda Fabrik]. Nov. 19. 3-Ketodihydro-1-thionaphthene-2-ketoxime, its homologues and derivatives are prepared by treating the corresponding thionaphthenes with nitrous acid. The products obtained are soluble in acetic acid, acetone, and some other solvents, and give phenylhydrazones when treated with phenylhydrazine. 2 : 3-Diketodihydro-1-thionaphthene, its homologues and derivatives are prepared from the corresponding 3 - ketodihydro. 1- thionaphthene-2 - ketoxime compounds, either by hydrolysis, or by reduction to an amino-compouud with iron filings and hydrochloric acid and subsequent oxidation with ferric chloride or other suitable oxidizing-agent. By the action of acetic anhydride on the compounds produced, yellow acetyl derivates are obtained, and by the action of phenylhydrazine, hydrazones are produced.
GB190626190D 1906-11-19 1906-11-19 Improvements in the Manufacture and Production of Derivatives of 3-oxy-(1)-thionaphthene. Expired GB190626190A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190626190T 1906-11-19

Publications (1)

Publication Number Publication Date
GB190626190A true GB190626190A (en) 1907-08-15

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Application Number Title Priority Date Filing Date
GB190626190D Expired GB190626190A (en) 1906-11-19 1906-11-19 Improvements in the Manufacture and Production of Derivatives of 3-oxy-(1)-thionaphthene.

Country Status (1)

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GB (1) GB190626190A (en)

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