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。