A new class of highly acidic confined imino-imidodiphosphate (iIDP) Brønsted acids catalyze the asymmetric Prins cyclization of both aliphatic and aromatic aldehydes. Diverse functionalized 4-methylenetetrahydropyrans are obtained in good to excellent yields and with good to excellent regio- and enantioselectivities. Our iIDP catalysts provide an efficient and scalable enantioselective approach to
一类新的高酸性受限亚
氨基-
亚胺二
磷酸 (iIDP) 布朗斯台德酸催化脂肪族和
芳香族醛的不对称 Prins 环化。以良好至极好的产率和良好至极好的区域选择性和对映选择性获得了多种官能化的 4-亚甲基
四氢吡喃。我们的 iIDP 催化剂为各种
香料(包括氧化玫瑰和 doremox)提供了一种高效且可扩展的对映选择性方法。