Enantioselective tandem reaction of chromone-derived Morita–Baylis–Hillman carbonates with benzylamines catalyzed by a trifunctional organocatalyst: the synthesis of chiral 3-aminomethylene-flavanones
作者:Neng-jun Zhong、Li Liu、Dong Wang、Yong-Jun Chen
DOI:10.1039/c3cc41011k
日期:——
An enantioselective tandem reaction of chromones-derived MBH carbonates (1) with benzylamines (2) catalyzed by a trifunctional organocatalyst, cinchonidine-amide-thiourea, has been developed in moderate to good yields (50-87%) and enantioselectivities (up to 89% ee).
已开发了中等至良好的收率(50-87%)和对映选择性(高达89)的苯并二氢吡喃酮衍生的MBH碳酸酯(1)与苄胺(2)的对映选择性串联反应。 %ee)。