Robust and General Late-Stage Methylation of Aryl Chlorides: Application to Isotopic Labeling of Drug-like Scaffolds
作者:Elliot Davenport、Daniela E. Negru、Geoff Badman、David M. Lindsay、William J. Kerr
DOI:10.1021/acscatal.3c02761
日期:2023.9.1
highly efficient, robust palladium-catalyzedapproach, optimized via high-throughput experimentation, for the methylation of aryl chlorides using potassium methyltrifluoroborate. A practically straightforward route to isotopically labeled methylating agents has also been developed, and the methodology applied to isotopologue synthesis, including the installation of isotopic labels in a range of drug-like
Simple and Green Preparation of Tetraalkoxydiborons and Diboron Diolates from Tetrahydroxydiboron
作者:Ryan M. Fornwald、Anshu Yadav、Jose R. Montero Bastidas、Milton R. Smith、Robert E. Maleczka
DOI:10.1021/acs.joc.3c02992
日期:2024.5.3
trialkyl orthoformates. Addition of diols to these reaction mixtures afforded diboron diolates in high yield. In both cases, removal of volatile byproducts is all that is required for the isolation of the diboron. These methods constitute a convenient alternative to previous preparations from tetrakis (dimethylamino) diboron and tetrahydroxydiboron.