"Sandwich" Diimine‐Copper Catalysts for C−H Functionalization by Carbene Insertion.

Autor: Klimovica, Kristine, Heidlas, Julius X., Romero, Irvin, Le, Thanh V., Daugulis, Olafs
Předmět:
Zdroj: Angewandte Chemie International Edition; Aug2022, Vol. 61 Issue 31, p1-6, 6p
Abstrakt: We report here "sandwich" diimine‐copper(I) catalysts for C(sp3)−H bond functionalization. Reactions of alkanes and ethers with trimethylsilyldiazomethane, ethyl diazoacetate, and trifluoromethyl‐diazomethane have been demonstrated. We also report C(sp3)−H bond methylation, benzylation, and diphenylmethylation by diazomethane, aryldiazomethanes, and diphenyldiazomethane. These reactions are rare examples of base‐metal catalyzed, intermolecular C(sp3)−H functionalizations by employing unactivated diazo compounds. Electrophilicity and unique steric environment of "sandwich"‐copper catalysts are likely reasons for their catalytic efficiency. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index