Benzo[c]phenanthrene, benz[a]anthracene, benzo[g]chrysene, and benzo[g,h,i]perylene are obtained by photocyclisation of appropriate stilbene analogues. The synthesis of dibenzo[a,l]pyrene from methylbenzo[g]chrysene is described.
苯并[ c ]
菲,苯并[ a ]
蒽,苯并[ g ] ry和苯并[ g,h,i ] per是通过适当的
二苯乙烯类似物的光环化获得的。描述了由甲基苯并[ g ] ch合成二苯并[ a,l ] py。