A Simple Strategy for the Preparation of 6-Substituted 3H-Benzoxazol-2-ones and 3H-Benzothiazol-2-ones
摘要:
The double metallation of 6-bromo-3H-benzothiazol-2-one and 6-bromo-3H-benzoxazol-2-one with methyl magnesium bromide and alkyllithium bases is described. Alkylation with a variety of electrophiles occurs at the 6-position of the heterocycles in good yields.
A Simple Strategy for the Preparation of 6-Substituted 3<i>H</i>-Benzoxazol-2-ones and 3<i>H</i>-Benzothiazol-2-ones
作者:Russell J. DeOrazio、Jun-Ho Maeng、David D. Manning、Brian A. Sherer、Ian L. Scott、Sham S. Nikam
DOI:10.1080/00397911.2010.519093
日期:2011.12.1
The double metallation of 6-bromo-3H-benzothiazol-2-one and 6-bromo-3H-benzoxazol-2-one with methyl magnesium bromide and alkyllithium bases is described. Alkylation with a variety of electrophiles occurs at the 6-position of the heterocycles in good yields.