Premium
A new synthesis of 3(2 H )‐furanones from acetylenic β‐diketones
Author(s) -
ElKholy Ibrahim ElSayed,
Mishrikey Morcos Michael,
Marei Mohamed Gaber
Publication year - 1982
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.5570190633
Subject(s) - chemistry , hydrazine (antidepressant) , hydrate , medicinal chemistry , mass spectrum , pyrazole , pyran , organic chemistry , ion , chromatography
Thermal cyclization of 1,5‐diarylpent‐1‐yne‐3,5‐diones led to the formation of 2‐benzyliden‐5‐aryl‐3(2 H ) furanones as well as 2,6‐diaryl‐4 H ‐pyran‐4‐ones as minor products. The structure of the furanones was established from their ir, 1 H nmr and mass spectral data. Their reaction with hydrazine hydrate gave pyrazole derivatives.