Tetra-<em>n</em>-butylammonium Hydroxide: an Efficient Catalyst for <em>N</em>-Alkylation of Pyrimidines and Purines

ZHANG Zhi-li, ZHOU Shou-xin, WANG Xiao-wei, WANG Hong-tao, CHEN Yan-li, LIU Jun-yi

Chemical Research in Chinese Universities . 2006, (4): 451 -454 .