(4'S,5'S)-4',5'-diphenyl-1',3'-dioxolane-spiro[2'.6]-5,6-dihydro-7H-1,3-dithiolo[4,5-b]-1,4-dithiepin-2-one 在
亚磷酸三乙酯 作用下,
反应 5.0h,
以37%的产率得到(4S,5S)-2'-[(4S,5S)-4,5-diphenylspiro[1,3-dioxolane-2,6'-5,7-dihydro-[1,3]dithiolo[4,5-b][1,4]dithiepine]-2'-ylidene]-4,5-diphenylspiro[1,3-dioxolane-2,6'-5,7-dihydro-[1,3]dithiolo[4,5-b][1,4]dithiepine]