SelectiveN(1)-arylation of benzotriazole with activated aryl halides under conditions of phase transfer catalysis
作者:I. P. Beletskaya、D. V. Davydov、M. S. Gorovoi、S. V. Kardashov
DOI:10.1007/bf02496407
日期:1999.8
3-benzotriazole, with activated aryl halides in a medium of aromatic hydrocarbons under conditions of phase transfer catalysis with the use of inorganic bases and cetyltrimethylammonium bromide as a phase-transfer catalyst was studied. Arylation affords bothN(1)- andN(2)-arylation products. Their ratio depends on the nature of the base and the reactivity of the arylating agent. In the presence of catalytic
1H-1,2,3-苯并三唑与活化的卤代芳烃在相转移催化条件下,使用无机碱和十六烷基三甲基溴化铵作为相转移催化剂进行了芳基化研究。芳基化提供N(1)-和N(2)-芳基化产物。它们的比例取决于碱的性质和芳基化剂的反应性。在催化量的苯基环丙烷羧酸铜存在下,芳基化在 N(1) 原子上区域选择性地进行。