Dipakranjan Mal  Amit Jana  Sutapa Ray  Sourav Bhattacharya  Asit Patra  Saroj R. De 《合成通讯》2013,43(22):3937-3946

DBU-CH₃I has been poised to be a substitute for diazomethane in the preparation of methyl esters from carboxylic acids. The reactions can be carried out in commercial untreated acetone and acetonitrile, which have been exemplified with several methyl esters, otherwise it is difficult to prepare. Bis-esterification using diiodomethane can also be achieved in a similar fashion. Sufficiently acidic phenols are also conveniently O-methylated by the method.  相似文献