Enamino ketones as precursors of functionalised 2H-thiopyrans and thiopyrano[2,3-c]- and [3,2-b]-benzothiopyrans

Gabbutt, Christopher D., Hepworth, John D. and Heron, B. Mark (1992) Enamino ketones as precursors of functionalised 2H-thiopyrans and thiopyrano[2,3-c]- and [3,2-b]-benzothiopyrans. Journal of the Chemical Society, Perkin Transactions 1 (20). pp. 2603-2608. ISSN 0300-922X

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Abstract

Oxo enamino ketones obtained by treating active methylene compounds with N,N-dimethylformamide dimethyl acetal yield novel 2H-thiopyrans in a regioselective one pot thionation–[4 + 2]-cycloaddition sequence. Application of similar methodology to thiochroman-3-ones affords novel thiopyrano[2,3-c][1]benzothiopyrans and the [3,2-b] isomers.

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Title:

Enamino ketones as precursors of functionalised 2H-thiopyrans and thiopyrano[2,3-c]- and [3,2-b]-benzothiopyrans

Creators:

Gabbutt, Christopher D., Hepworth, John D. and Heron, B. Mark

Identification Number:

10.1039/P19920002603

Official URL:

http://dx.doi.org/10.1039/P19920002603

Date:

January 1992

Subjects:

Q Science > Q Science (General)
Q Science > QD Chemistry

Schools:

School of Applied Sciences

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Item Type:

Article

Depositing User:

Sharon Beastall

Date Deposited:

20 Sep 2012 11:18

Revision:

15

Last Modified:

28 Aug 2021 11:21

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