Cobalt‐Catalyzed Diborylation of 1,1‐disubstituted Vinylarenes: A Practical Route to Branched gem‐Bis(boryl)alkanes |
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Authors: | Wei Jie Teo Prof?Dr Shaozhong Ge |
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Institution: | 1. http://www.geresearchgroup.com;2. Department of Chemistry, National University of Singapore, Singapore, Singapore |
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Abstract: | We report the first catalytic diborylation of 1,1‐disubstituted vinylarenes with pinacolborane using a cobalt catalyst generated from bench‐stable Co(acac)2 and xantphos. A wide range of 1,1‐disubstituted vinylarenes underwent this transformation to produce the corresponding gem‐bis(boryl)alkanes in modest to high yields. This cobalt‐catalyzed reaction can be readily conducted on a gram scale without the use of a dry box and represents a practical and effective approach to prepare a wide range of branched gem‐bis(boryl)alkanes. |
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Keywords: | cobalt diborylation bis(boryl)alkanes homogeneous catalysis vinylarene |
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