Some Unusual Reactions of 1, 2??Bis (phenylethynyl) benzene with Sulfur, Carbon Monoxide and Alkyl Acetylenedicarboxylates

Y Badrieh, A Greenwald, H Schumann…

Index: Badrieh, Yacoub; Greenwald, Ayala; Schumann, Herbert; Blum, Jochanan Chemische Berichte, 1992 , vol. 125, # 3 p. 667 - 674

Full Text: HTML

Citation Number: 53

Abstract

1, 2-Bis (phenylethyny1) benzene (1) reacts with sulfur, carbon monoxide, and acetylenedicarboxylic esters to give unusual polycyclic products. Under exclusion of air 1 adds sulfur to give 6-phenylbenz [b] indeno [2, 1-d] thiopyran (3b) and bis (6-phenylbenz [b] indeno [2, 1-djthiopyran-ll-y1) disulfide (4). In the presence of air 3-benzoyl-2-phenyl-lH- inden-1-one (5) is formed via a sulfur-containing intermediate. Under phasetransfer ...