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The route of action of sodium methoxide on 5‐Arylmethylene‐2‐Disubstituted amino‐4‐oxo‐2‐thiazolines
Author(s) -
Omar M. T.,
Kasem M. A.
Publication year - 1981
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.5570180727
Subject(s) - chemistry , sodium methoxide , sodium salt , salt (chemistry) , sodium , methoxide , organic chemistry , medicinal chemistry , methanol , stereochemistry , inorganic chemistry
5‐Arylmethylene‐2‐disubstituted amino‐4‐oxo‐2‐thiazolines 1a‐d reacted with six and two moles of sodium methoxide to give the 2‐mercaptocinnamic acid esters 6 and mixtures of 2,2 ‐dimethoxy‐4‐oxothiazolidines 4 and 2,4‐dioxothiazolidines 5 , respectively. The intermediate mixture of the sodium salt of 5‐aryImethylene‐2,2‐dimethoxy‐4‐oxothiazolidines 3 in the above mentioned transofrmations was established. The structures of 3, 4, 5 and 6 were based on analytical and spectral evidence. The route of conversion of 1 into 3, 4,5 and 6 was presented and discussed.