Stereo- and regio-selective synthesis of silicon-containing diborylalkenes platinum-catalyzed mono-lateral diboration of dialkynylsilanes

A highly chemoselective platinum-catalyzed mono-lateral diboration of dialkynylsilanes for the construction of silicon-tethered alkynyl diborylalkenes is described, in which tris(4-methoxyphenyl)phosphine was found to be an effective ligand for the cis -addition of diboron agents to the silicon-teth...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2020-04, Vol.56 (3), p.4188-4191
Main Authors: Long, Peng-Wei, Xie, Jia-Le, Yang, Jing-Jing, Lu, Si-Qi, Xu, Zheng, Ye, Fei, Xu, Li-Wen
Format: Article
Language:English
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Summary:A highly chemoselective platinum-catalyzed mono-lateral diboration of dialkynylsilanes for the construction of silicon-tethered alkynyl diborylalkenes is described, in which tris(4-methoxyphenyl)phosphine was found to be an effective ligand for the cis -addition of diboron agents to the silicon-tethered alkynes, and the chiral ligand (AFSi-Phos)-mediated diboration of dialkynylsilanes resulted in the desymmetric construction of silicon-stereogenic centers with promising enantioselectivity. A phosphine-assisted platinum-catalyzed mono-lateral diboration of dialkynylsilanes for the construction of silicon-tethered alkynyl diborylalkenes with or without silicon-stereogenic centers is described.
ISSN:1359-7345
1364-548X
DOI:10.1039/d0cc00844c