Novel copper(I) chloride-assisted coupling reaction of 1-chloro-1-aryloyl-3,3-diarylallene to afford 3,7-dioxa-2,6-diaryl-4,8-bis(diarylmethylene)bicyclo[3.3.O]octa-1,5-diene and 1,1,4,4-tetraaryl-3,6-diaryloylhexa-1,2-diene-5-yne, and thermal cyclization of the latter to a fulvene

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Abstract A novel CuCl-assisted coupling reaction of 1-chloro-1-aryloyl-3,3-diarylallene ( 5 ) and two new thermal cyclization reactions of 1,1,4,4-tetraaryl-3,6-diaryloylhexa-1,2-diene-5-yne ( 7 ) are described.

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