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Synthesis and Properties of 1,2-Dimethylene-3,5-cycloheptadiene

✍ Scribed by Mitsunori Oda; Shigeyasu Kuroda; Ichiro Shimao; Noboru Morita; Toyonobu Asao

Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
166 KB
Volume
113
Category
Article
ISSN
0165-0513

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✦ Synopsis

Abstract

The regioselective synthesis of dimethyl 1,3,5‐cyloheptatriene‐1,2‐dicarboxylate (4) was achieved by a ring expansion method, starting from dimethyl 1,3‐cyclohexadiene‐2,3‐dicarboxylate (5). The title compound 3 was obtained as an air‐sensitive oil by zinc‐copper reduction of 1,2‐bis(bromomethyl)cyclohepta‐1,3,5‐triene (10) to which the diester 4 was transformed.

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