Preparation and Reaction of Optically Active Organotransition Metal Complexes. III. Preparation of Optically Active (1-(Methoxycarbonyl)ethyl)cobaloximes Coordinated with Various Axial Ligands and Their Photoracemization. Remarkable Steric Effect of Axial
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概要
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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.
- 公益社団法人 日本化学会の論文
著者
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Takeuchi Seiji
Niigata College Of Pharmacy
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OHGO Yoshiaki
Niigata College of Pharmacy
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Wada Hideki
Niigata College of Pharmacy
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Ohtera Chiyako
Niigata College of Pharmacy
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Ikarashi Makoto
Niigata College of Pharmacy
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Baba Shoe
Niigata College of Pharmacy
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Baba Shoe
Niigata Academy of Medical Technology
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