Copper/Bisphosphine Catalysts in the Internally Borylative Aminoboration of Unactivated Terminal Alkenes with Bis(pinacolato)diboron
作者:Kodai Kato、Koji Hirano、Masahiro Miura
DOI:10.1021/acs.joc.7b01874
日期:2017.10.6
Cu(I)/modified dppbz catalyst systems for the regioselective aminoboration of unactivated terminalalkenes have been developed. The bisphosphine-based Cu catalysis enables the introduction of the readily transformable Bpin group at the more congested internal position and shows better regioselectivity for broader terminalalkenes involving sterically demanding allylbenzenes, which are relatively challenging
Organic Synthesis “on Water” vs “on Liquids”: A Comparative Analysis
作者:Tal Sela、Arkadi Vigalok
DOI:10.1021/ol500518n
日期:2014.4.4
Several organic reactions that are accelerated under the "on water" conditions proceed equally well or better on other "nonsolvents" or in neat conditions. Alternatively, only 1 equiv of water was necessary to obtain the same acceleration effect testifying to the fact that the water-organic compounds boundary might be unnecessary to achieve the "on water"-like reactivity.