2-[4,5-Bis-(2-trimethylsilanyl-ethoxymethylsulfanyl)-[1,3]dithiol-2-ylidene]-5-methyl-5,6-dihydro-[1,3]dithiolo[4,5-b][1,4]dithiine 、
1,2-二溴乙烷 在
四丁基氟化铵 作用下,
生成
5-Methyl-5,6,5',6'-tetrahydro-[2,2']bi[[1,3]dithiolo[4,5-b][1,4]dithiinylidene] 、 (2-{5-(2-Bromo-ethylsulfanyl)-2-[5-methyl-5,6-dihydro-[1,3]dithiolo[4,5-b][1,4]dithiin-(2Z)-ylidene]-[1,3]dithiol-4-ylsulfanylmethoxy}-ethyl)-trimethyl-silane