Preparation of N-aryl-2-hydroxypropionamides from hydroxy aromatic compounds using a one-pot smiles rearrangement procedure
作者:John J. Weidner、Philip M. Weintraub、Richard A. Schnettler、Norton P. Peet
DOI:10.1016/s0040-4020(97)00314-1
日期:1997.5
Acylation of hydroxy aromatic compounds with 2-bromo-2-methylpropionamide followed by Smiles rearrangement of the resulting 2-aryloxypropionamide in a one-pot procedure produced the corresponding 2-hydroxy-2-methyl-N-arylpropionamides which can be converted to arylamines by hydrolysis. Particularly important applications of this new process were the conversions of estrone (6) and estradiol (14) to
用一锅法将羟基芳香族化合物与2-溴-2-甲基丙酰胺酰化,然后将得到的2-芳氧基丙酰胺进行Smiles重排,生成了相应的2-羟基-2-甲基-N-芳基丙酰胺,可以通过将其转化为芳基胺水解。该新方法的特别重要的应用是雌酮(6)和雌二醇(14)分别转化为相应的3-氨基雌三烯衍生物8和15。另外,描述了一种改进的Semmler-Wolff方法,用于将19-去甲睾酮(22)转化为3-氨基estra-1,3,5(10)-三烯-17β-ol盐酸盐(26)。