Synthesis and reactions of pyrrolo[2,1-c][1,2,4]benzotriazine and 4-oxo-4H-pyrrolo[2,1-c][1,4]benzoxazine
作者:G. W. H. Cheeseman、M. Rafiq、P. D. Roy、C. J. Turner、G. V. Boyd
DOI:10.1039/j39710002018
日期:——
The reactivities of pyrrolo[2,1-c][1,2,4]benzotriazine (3) and of 4-oxo-4H-pyrrolo[2,1-c][1,4]benzoxazine (6) to some typical electrophiles are studied and compared to those of pyrrolo[1,2-a]quinoxaline (2). The preferred site of substitution in all three compounds is position 1; in compounds (2) and (3), C-3 is the second most favoured position for substitution but for compound (6) this is found to
吡咯并[2,1- c ] [1,2,4]苯并三嗪(3)和4-氧代-4 H-吡咯并[2,1- c ] [1,4]苯并嗪(6)的反应性对典型的亲电试剂进行了研究,并将其与吡咯并[1,2- a ]喹喔啉(2)进行了比较。在所有三种化合物中,优选的取代位点是位置1;在化合物(2)和(3)中,C-3是取代的第二受欢迎的位置,但对于化合物(6),它是位置2。实验确定的卤化位点与分子轨道预测的位点相同计算。