Journal
ORGANIC CHEMISTRY FRONTIERS
Volume 9, Issue 5, Pages 1370-1374Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1qo01903a
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Funding
- Tonen General Sekiyu Research/Development Encouragement & Scholarship Foundation
- Hiroshima University NOZOMI H Fund Grant for the Promotion of Cancer Research
- Fukuoka Naohiko Memorial Foundation
- China Scholarship Council (CSC) [202108050140]
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In this study, an unsymmetrical diboron was smoothly added across various terminal alkynes under platinum catalysis, resulting in the regio- and stereoselective formation of cis-vic-diborylalkenes. The use of a highly electron-deficient triarylphosphine ligand, P(BFPy)(3), is crucial for the regiocontrol, and electron deficiency in ligands has been proven to be closely correlated with the regioselectivity.
An unsymmetrical diboron, (pin)B-B(aam), is smoothly added across a carbon-carbon triple bond of various terminal alkynes under platinum catalysis, resulting in the regio- and stereoselective formation of cis-vic-diborylalkenes via B(aam)-installation at the terminal carbon. The use of a highly electron-deficient triarylphosphine ligand, P(BFPy)(3), is indispensable for the regiocontrol, and electron-deficiency in ligands has been proven to be closely correlated with the regioselectivity.
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