Unknown

Dataset Information

0

Reusable and highly enantioselective water-soluble Ru(II)-Amm-Pheox catalyst for intramolecular cyclopropanation of diazo compounds.


ABSTRACT: A reusable and highly enantioselective catalyst for the intramolecular cyclopropanation of various diazo ester and Weinreb amide derivatives was developed. The reactions catalyzed by a water-soluble Ru(II)-Amm-Pheox catalyst proceeded smoothly at room temperature, affording the corresponding bicyclic cyclopropane ring-fused lactones and lactams in high yields (up to 99%) with excellent enantioselectivities (up to 99% ee). After screening of various catalysts, the Ru(II)-Amm-Pheox complex having an ammonium group proved to be crucial for the intramolecular cyclopropanation reaction in a water/ether biphasic medium. The water-soluble catalyst could be reused at least six times with little loss in yield and enantioselectivity.

SUBMITTER: Mandour HSA 

PROVIDER: S-EPMC6369996 | biostudies-literature |

REPOSITORIES: biostudies-literature

Similar Datasets

| S-EPMC3740503 | biostudies-literature
| S-EPMC2516923 | biostudies-literature
| S-EPMC4470557 | biostudies-literature
| S-EPMC7017872 | biostudies-literature
| S-EPMC7111458 | biostudies-literature
| S-EPMC3235651 | biostudies-literature
| S-EPMC2978499 | biostudies-literature
| S-EPMC4033649 | biostudies-literature
| S-EPMC6561828 | biostudies-literature
| S-EPMC3513925 | biostudies-literature