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Chemistry of coumarins. Thermal reactions of 4‐chloro‐3‐coumarinyl N,N ‐dialkyldithiocarbamates and 3‐nitro‐4‐coumarinyl N ‐phenyldithiocarbamate
Author(s) -
Tabaković K.,
Tabaković I.
Publication year - 1992
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570290216
Subject(s) - chemistry , nitro , thiazine , medicinal chemistry , stereochemistry , organic chemistry , alkyl
The thermal reactions of 4‐chloro‐3‐coumarinyl N,N ‐dialkyldithiocarbamates 2–4 and 3‐nitro‐4‐coumarinyl N ‐phenyldithiocarbamate, 9 , afforded the novel heterocyclic systems, e.g. bis‐6 H ‐1‐benzopyrano[4,3‐ b ]1,4]dithiin, 7 , and bis‐6 H ‐1‐benzopyrano[4,3‐ b ][1,4]thiazine, 14. A possible mechanism of the formation of the reaction products is discussed.