Pure and Applied Chemistry p. 1387 - 1414 (1983)
Update date:2022-08-16
Topics:
Brown
Chandrasekharan
Wang
The kinetics of hydroboration of alkenes with several dialkylborane dimers have been studied extensively. The reaction of alkenes with the disiamylborane dimer displays second-order kinetics, first-order in the dimer and first-order in the alkene. 9-borabicyclo left bracket 3. 3. 1 right bracket nonane)//2 (9-BBN)//2, on the other hand, reacts by a prior dissociation of the dimer, followed by the reaction of the monomer with the alkene. The borinane dimer also reacts by the dissociation mechanism. By following the kinetics of the reactions of alkenes, alkynes, aldehydes and ketones, alcohols and amines with (9-BBN)//2, a spectrum of mechanistic pathways has been revealed.
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(1937)
