Ogasawara, Masamichi Tokushima University|Hokkaido University Tokushima University Educator and Researcher Directory
Tseng, Ya-Yi Osaka Prefecture University
Liu, Qiang Tokushima University|Hokkaido University
Chang, Ninghui Hokkaido University
Yang, Xicheng Hokkaido University
Takahashi, Tamotsu Hokkaido University
Kamikawa, Ken Osaka Prefecture University
Kinetic resolution of racemic planar-chiral (η5-1-alkenyl-2-bromocyclopentadienyl)manganese(I) complexes 1 was realized by the molybdenum-catalyzed asymmetric ring-closing metathesis. While vinyl-Cp derivative 1a was resolved in excellent enantioselectivity with the krel values of up to 127, the selectivity in the ARCM reaction of allyl-Cp derivative 1b was modest (krel = 3.0). ARCM product 2a, which was obtained in an enantiomerically pure form by the two successive ARCM reactions or recrystallization of the enantiomerically enriched products, was found to be a versatile synthetic precursor to various planar-chiral cymantrene derivatives.
This document is the Accepted Manuscript version of a Published Work that appeared in final form in Organometallics, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.organomet.7b00125.
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organomet_36_7_1430.pdf 824 KB
Science and Technology