Asymmetric Oxidative Coupling of Phenols and Hydroxycarbazoles
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https://figshare.com/articles/dataset/Asymmetric_Oxidative_Coupling_of_Phenols_and_Hydroxycarbazoles/5491660
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资源简介：
The first examples
of asymmetric oxidative coupling of simple phenols
and 2-hydroxycarbazoles are outlined. Generation of a more vanadium
catalyst by ligand design and by addition of an exogenous Brønsted
or Lewis acid was found to be key to coupling the more oxidatively
resistant phenols. The resultant vanadium complex is both more Lewis
acidic and more strongly oxidizing. Good to excellent levels of enantioselectivity
could be obtained, and simple trituration readily provided the products
with ≥95% ee.
创建时间：
2018-10-12
