Nucleophilic C–H Etherification of Heteroarenes Enabled by Base-Catalyzed Halogen Transfer
作者:Thomas R. Puleo、Danielle R. Klaus、Jeffrey S. Bandar
DOI:10.1021/jacs.1c06481
日期:2021.8.18
for the direct C–H etherification of N-heteroarenes. Potassium tert-butoxide catalyzes halogen transfer from 2-halothiophenes to N-heteroarenes to form N-heteroaryl halide intermediates that undergo tandem base-promoted alcohol substitution. Thus, the simple inclusion of inexpensive 2-halothiophenes enables regioselective oxidative coupling of alcohols with 1,3-azoles, pyridines, diazines, and polyazines