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- Title
Monomeric Magnesium Catalyzed Alkene and Alkyne Hydroboration.
- Authors
Kumar, Rohit; Dutta, Sayan; Sharma, Vishal; Singh, Praval P.; Gonnade, Rajesh G.; Koley, Debasis; Sen, Sakya S.
- Abstract
In this work, two monomeric magnesium alkyl complexes (1 and 2) were prepared using bis(phosphino)carbazole framework and among them 1 has been used as a catalyst for hydroboration of alkenes and alkynes with pinacolborane (HBpin). A broad variety of aromatic and aliphatic alkenes and alkynes were efficiently reduced. Anti‐Markovnikov regioselective hydroboration of alkenes and alkynes was achieved, which was confirmed by deuterium‐labelling experiments. The work represents the first example of the use of magnesium in homogeneous catalytic hydroboration of alkene with broad substrate scope. Experimental mechanistic investigations and DFT calculations provided insights into the reaction mechanism. Finally, the hydroboration protocol was extended to terpenes.
- Subjects
ALKENES; HYDROBORATION; MAGNESIUM compounds; MAGNESIUM; TERPENES
- Publication
Chemistry - A European Journal, 2022, Vol 28, Issue 56, p1
- ISSN
0947-6539
- Publication type
Article
- DOI
10.1002/chem.202201896