2,5-dioxa-7,9-dithiabicyclo<4.3.0>non-1(6)-en-8-one 、
5,6-ethylenediseleno-1,3-dithiolo<4,5-b><1,4>-dithiin-2-thione 在
亚磷酸三乙酯 作用下,
反应 4.0h,
以3%的产率得到5-(2,4,6,8-tetrathia-10,13-diselenatricyclo[7.4.0.03,7]trideca-1(9),3(7)-dien-5-ylidene)-2,4,6,8-tetrathia-10,13-diselenatricyclo[7.4.0.03,7]trideca-1(9),3(7)-diene