Provided are methods of carbonylating cyclic substrates to produce carbonyl ated cyclic products. The cyclic substrates may be 2, 2-di substituted epoxides and the cyclic products may be β,β-di substituted lactones. The method may be carried out by forming and pressurizing a reaction mixture of the cyclic substrate, a solvent, carbon monoxide, and a [LA+][CO(CO)4-] catalyst, where [LA+] is a Lewis acid capable of coordinating to the cyclic substrate. The method may proceed with a regioselectivity of 90:10 or greater. The resulting carbonylated cyclic products may be converted to ketone aldol products that retain the stereochemistry and enantiomeric ratio of the carbonyl ated cyclic products.
提供了一种将环状底物羰基化以产生羰基化环状产物的方法。环状底物可以是2,2-二取代
环氧化物,环状产物可以是β,β-二取代内酯。该方法可以通过形成并加压环状底物、溶剂、
一氧化碳和[
LA+][CO(CO)4-]催化剂的反应混合物来进行,其中[
LA+]是能够与环状底物配位的
路易斯酸。该方法可能以90:10或更高的区域选择性进行。所得的羰基化环状产物可以转化为保留羰基化环状产物的立体
化学和对映比的酮醇产物。