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Reaction condition controlled nickel(ii)-catalyzed C–C cross-coupling of alcohols†
Meng-Juan Zhang,David J. Young,Hai-Yan Li
Organic & Biomolecular Chemistry Pub Date : 03/20/2019 00:00:00 , DOI:10.1039/C9OB00418A
Abstract

The challenge in the C–C cross-coupling of secondary and primary alcohols using acceptorless dehydrogenation coupling (ADC) is the difficulty in accurately controlling product selectivities. Herein, we report a controlled approach to a diverse range of β-alkylated secondary alcohols, α-alkylated ketones and α,β-unsaturated ketones using the ADC methodology employing a Ni(II) 4,6-dimethylpyrimidine-2-thiolate cluster catalyst under different reaction conditions. This catalyst could tolerate a wide range of substrates and exhibited a high activity for the annulation reaction of secondary alcohols with 2-aminobenzyl alcohols to yield quinolines. This work is an example of precise chemoselectivity control by careful choice of reaction conditions.

Graphical abstract: Reaction condition controlled nickel(ii)-catalyzed C–C cross-coupling of alcohols
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