反应详情

5.The starting material was prepared by reaction of 1-bromoisoquinoline with HBr to give 1,4-dibromoisoquinoline, m.p. 95°-96°, followed by reaction of this compound with trimethyloxonium tetrafluoroborate in CH2Cl2 to give 1,4-dibromo-2-methylisoquinolinium tetrafluoroborate; n.m.r. in solvent A:-3.5(s, 3H); 7.2-8.4(m, 5H).