While the ap form of the title compound, on being heated with thionyl chloride, afforded 3-oxo-1,1,8,11-tetramethyl-2,3,7,11b-tetrahydro-7,11b-o-benzenobenzo[j]phenalene and 3-chloro-1,1,8,11-tetramethyl-7,11b-dihydro-7,11b-o-benzenobenzo[j]phenalene, the sc-isomer did, in addition to the above products, those derived from the ipso attack of the intervening acyl cation on the 1-position, the methyl group at the position undergoing the 1,2-shift.
标题化合物的 ap 形式在与亚
硫酰氯一起加热时生成 3-氧代-1,1,8,11-四甲基-2,3,7,11b-四氢-7,11b-邻苯并[j]苯alene 和 3-
氯代-1,1,8,11-四甲基-7,11b-二氢-7,11b-邻苯并[j]苯alene、11b-o-苯并[j]苯alene,除上述产物外,sc-异构体还包括由 1-位上的中间酰基阳离子、1,2-位上的甲基发生同位攻击而产生的产物。