Copper-Catalyzed Carboxylation of Alkylboranes with Carbon Dioxide: Formal Reductive Carboxylation of Terminal Alkenes
摘要:
Carboxylation of alkylboron compounds (alkyl-9-BBN) with CO2 proceeded in the presence of catalytic amounts of CuOAc/1,10-phenanthroline and a stoichiometric amount of (KOBu)-Bu-t. The alkylboranes are easily and widely available through the alkene hydroboration, and thus the overall process represents a reductive carboxylation of alkenes with CO2. The broad functional group compatibility and the inexpensiveness of the Cu/1,10-phenathoroline catalyst system are attractive features of this protocol.
Catalyst-free dehydrocoupling of amines, alcohols, and thiols with pinacol borane and 9-borabicyclononane (9-BBN)
作者:Erik A. Romero、Jesse L. Peltier、Rodolphe Jazzar、Guy Bertrand
DOI:10.1039/c6cc06096j
日期:——
Contrary to recent reports, the dehydrocoupling of pinacol borane and 9-borabicyclononane with a variety of amines, alcohols and thiols can be achieved under mild conditions without catalyst. This process involves...
Hydroboration. XXXVI. Direct route to 9-borabicyclo[3.3.1]nonane via the cyclic hydroboration of 1,5-cyclooctadiene. 9-Borabicyclo[3.3.1]nonane as a uniquely selective reagent for the hydroboration of olefins
作者:Herbert C. Brown、Evord F. Knights、Charles G. Scouten