Investigation of the Addition of Benzenethiol to p-Chlorophenylphenylacetylene

The addition of benzenethiol to p-chlorophenylphenylacetylene results in the formation of a mixture of two pairs of diastereomeric (E)- and (Z)-1-p-chlorophenyl-2-phenyl-1-phenylthioethylenes (1 and 2) and (E)- and (Z)-1-p-chlorophenyl-2-phenyl-2-phenylthioethylenes (3 and 4). The configurations of these compounds have been established by ¹ H NMR studies, by their preparation from benzyl p-chlorophenyl ketone and p-chloro-benzylphenyl ketone, and by the oxidation of the thioethylenes 1, 2, 3, and 4 to the corresponding sulphonylethylenes 5, 6, 7, and 8, respectively.

keywords:

• (E)- and (Z)-1-p-chlorophenyl-2-phenyl-1-phenylthioethylenes
• (E)- and (Z)-1-p-chlorophenyl-2-phenyl-2-phenylthioethylenes
• (E)- and (Z)-1-p-chlorophenyl-2-phenyl-1-phenylsulphonylethylenes
• (E)- and (Z)-1-p-chlorophenyl-2-phenyl-2-phenylsulphonyl-ethylenes

Acknowledgments

The authors are thankful to University Grants Commission (UGC) New Delhi, for the award of the F.I.P. Fellowship to Md. Manzoor Hussain.