A mild, efficient and stereospecific intramolecular method for converting hydroxy-phenols into benzodioxans, dihydrobenzopyrans and dihydrobenzofurans via imidate esters, and suitable for large scale operation is described.
描述了一种通过亚
氨酸酯将羟基
酚转化为苯并
二恶烷,二氢苯并
吡喃和二氢
苯并呋喃的温和,有效和立体定向的分子内方法,该方法适用于大规模操作。