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Synthesis and Reactions of Some 1‐Thiapyran‐4‐One Derivatives
Author(s) -
ElBarbary A. A.,
AbdelMegeid F. M. E.,
Gad F. A.
Publication year - 1984
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.198400053
Subject(s) - chemistry , bromine , hydrogen peroxide , reagent , proton nmr , medicinal chemistry , organic chemistry , combinatorial chemistry
The preparation of some 3,5‐diarylidene‐1‐thipyran‐4‐one derivatives (Ia‐e) was described. Oxidation of Ia, b and Ie with hydrogen peroxide gave the corresponding dioxides (IIa‐c). Reaction of the 1‐thiapyran‐4‐one derivatives with bromine, Grignard reagents, and amines were studied. Structural assignments are supported by spectral (UV, IR, and 1 HNMR) data.