1,3-Dimethyl-2-oxobenzimidazole-5,6-dicarbonitrile 在
1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下,
以
戊醇 为溶剂,
反应 24.0h,
以13%的产率得到7,9,19,21,31,33,43,45-Octamethyl-2,7,9,14,19,21,26,31,33,38,43,45,49,50,51,52-hexadecazatridecacyclo[37.9.1.13,13.115,25.127,37.04,12.06,10.016,24.018,22.028,36.030,34.040,48.042,46]dopentaconta-1,3,5,10,12,14,16,18(22),23,25(51),26,28,30(34),35,37,39(49),40,42(46),47-nonadecaene-8,20,32,44-tetrone