TY - JOUR AU - Takeuchi, Seiji AB - Optically active [1-(methoxycarbonyl)ethyl]cobaloximes coordinated with various axial bases were prepared and their photoracemization rates were measured in a solution state. It was found that although the electronic effect of the axial ligand was negligible on the rate of photochemical Co–C bond homolysis, the steric bulkines accelerated the rate remarkably. These results had a similar tendency to those observed in a previously reported reaction wtih 1-cyanoethyl cobaloximes, though the degree of rate enhancement due to the steric bulkiness of the axial ligand was extremely enlarged. The reason is also discussed. TI - Preparation of Optically Active [1-(Methoxycarbonyl)ethyl]cobaloximes Coordinated with Various Axial Ligands and Their Photoracemization. Remarkable Steric Effect of Axial Ligand on the Co–C Bond Homolysis JO - Bulletin of the Chemical Society of Japan DO - 10.1246/bcsj.64.2656 DA - 2006-06-07 UR - https://www.deepdyve.com/lp/oxford-university-press/preparation-of-optically-active-1-methoxycarbonyl-ethyl-cobaloximes-xQTCwenVB7 SP - 2656 EP - 2660 VL - 64 IS - 9 DP - DeepDyve ER -