A general and simple strategy for 2-arylethenyl-2'-arylethynyl sulfone
s (9) and 1,4-diarylbut-1-en-3-ynes (10) has been developed by the lab
ility of carbon-heteroatom bond in heterocycles, 1,2,3-selendiazole (3
) as the basis. (C) 1997 Elsevier Science Ltd.