Mechanism for Photodecomposition of Naphtho[1,8-de][1,3] dithiin-1-bis(ethoxycarbonyl)methylides
作者:Takayoshi Fujii、Hirochika Sakuragi、Naomichi Furukawa
DOI:10.1016/0040-4039(95)01702-j
日期:1995.10
Naphtho[1,8-de][1,3]dithiin-1-bis(ethoxycarbonyl)mcthylides (3) were prepared by the reaction of naphtho[1,8-de]dithiins with dicthyl diazomalonate in the presence of copper acetylacetonate. The sulfonium ylides 3 underwent photo-rearrangement giving olefins 5 quantitatively together with naphthalene-1,8-dithiole.
萘并[1,8- de ] [1,3]二噻吩-1-双(乙氧羰基)甲基胸苷(3)是通过在乙酰丙酮铜的存在下萘并[1,8- de ]二硫辛酸与重氮丙二酸二乙酯反应制得的。对的酰基化物3进行光重排,定量地得到烯烃5以及萘-1,8-二硫醇。