【摘要】 以４，４－二取代联苯（或４，４－二取代二苯甲烷）为原料合成了几种新的３，７－二取代二苯并环状溴盐．对几种溴盐与ＫＢＨ４及与ＮａＮ３的反应进行了研究．结果表明，前一反应主产物为２－溴－４，４－二取代联苯（或２－溴－４，４－二取代二苯甲烷），后一反应的主产物为２－叠氮基－２－溴－４，４－二取代联苯（２０ａ—２０ｄ）．通过２０ａ—２０ｄ的热反应合成几种新的多取代咔唑（２１ａ—２１ｄ）．更多还原

【Abstract】 Some new 3,7 disubstituted dibenzocyclobromonium salts were synthesized from 4,4 disubstituted biphenyls（or 4,4 disubstituted diphenylmethane）. The reactions of some 3,7 disubstituted dibenzocyclobromonium salts with both KBH 4 and NaN 3 were studied. The primary products were 2 bromo 4,4 disubstituted biphenyls（or 2 bromo 4,4 disubstituted diphenylmethane） and 2 azide 2 bromo 4,4 disubstituted biphenyls（20a₂0d） respectively. Thermal reaction of compounds 20a—20d gave corresponding polysubstituted carbozoles（21a—20d）.更多还原