Monatshefte fur Chemie p. 601 - 608 (1995)
Update date:2022-07-30
Topics:
Sherif, S. M.
Abdel-Sayed, N. I.
El-Kousy, S. M.
Mohareb, R. M.
Carbon disulfide added to the active methylene group in 1 in basic DMF at room temperature to yield the non-isolable 1:1 adduct 2.In-situ cyclization of the latter with some α-bromo compounds afforded the corresponding polyfunctionally substituted thiophenes 5.The reactivity of 5 towards a variety of reagents was studied.Chemical and spectroscopic evidences for the structure of the new compounds are provided.Keywords: Thiophene; Thieno<4,5-c:2,3-c'>dipyrazole; Thieno<3,2-c>pyrazole
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Doi:10.1016/S0022-328X(73)80036-1
(1973)Doi:10.1016/S0957-4166(00)00407-9
(2000)Doi:10.1021/jo00123a021
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(1995)
