Synthesis and reactivity of some thiochroman-3,4-diones.

Gabbutt, Christopher D., Hepworth, John D and Heron, B. Mark (1994) Synthesis and reactivity of some thiochroman-3,4-diones. Tetrahedron, 50 (26). pp. 7865-7878. ISSN 0040-4020

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Abstract

Thiochroman-3,4-diones, which result from the reaction of thiochroman-4-ones with isoamyl nitrite, form fused heterocycles on reaction with 1,2-diamines and with p-anisaldehyde and ammonium acetate. Cyclopenta-[c][1]benzothiopyran-2-one, formed on reaction with dibenzyl ketone, yields a dibenzo[bd]thiopyran after cycloaddition of DMAD. With methyl magnesium iodide, a mixture of thiochroman-3-and 4-ols is fomed which was separated only after the selective dehydration of the 4-ol. The resulting 4-methylene derivative was isolated as the hetero Diels-Alder spiro-liked adduct

Item Type:	Article
Subjects:	Q Science > Q Science (General) Q Science > QD Chemistry
Schools:	School of Applied Sciences
Related URLs:	Author Author
Depositing User:	Sharon Beastall
Date Deposited:	20 Sep 2012 11:51
Last Modified:	18 Oct 2012 09:54
URI:	http://eprints.hud.ac.uk/id/eprint/14989

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