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DOI: 10.1055/s-0042-1751580
Stereoselective Synthesis of Unsymmetrical 1,1-Diborylalkenes
Financial support was provided by the Research Grants Council of HKSAR (24307423) and the Chinese University of Hong Kong (4933621, 4053561).
Dedicated to Professor Zuowei Xie on the occasion of his 60th birthday
Abstract
1,1-Diborylalkene, a class of important diboryl species, serves as the synthetic precursor of multisubstituted olefin, which is a prevalent building block in natural products, functional materials, and pharmaceuticals. Current methods mainly afford symmetrical 1,1-diborylalkenes, and late-stage differentiation of the two identical boryl groups is required to achieve selective difunctionalization. In comparison, stereoselective synthesis of unsymmetrical 1,1-diborylalkenes (UDBA) are less-explored. This Synpacts article provides a brief summary of the achievements in the synthesis of UDBAs. In particularly, we highlight our recent work on the unsymmetrical 1,1-diborylation of alkynes using a neutral sp2–sp3 diboron reagent to access UDBAs and their controllable stepwise derivatization.
1 Introduction
2 Background: Unsymmetrical 1,1-Diborylalkene Synthesis
3 Stereoselective Unsymmetrical 1,1-Diborylation of Alkynes with a Neutral sp2–sp3 Diboron Reagent
4 Summary and Outlook
Key words
boron - unsymmetrical 1,1-diborylalkene - diborylation - diboron reagent - stereoselectivePublication History
Received: 28 December 2023
Accepted after revision: 18 March 2024
Article published online:
02 April 2024
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