Dual Catalysis: Combination of Photocatalytic Aerobic Oxidation and Metal Catalyzed Alkynylation Reactions-CC Bond Formation Using Visible Light
作者:Magnus Rueping、René M. Koenigs、Konstantin Poscharny、David C. Fabry、Daniele Leonori、Carlos Vila
DOI:10.1002/chem.201200050
日期:2012.4.23
Shedding new light on the right combination of catalysts: A new dual catalytic system for efficient CH functionalization was developed. The appropriate choice of two metal catalysts allows the oxidativealkynylation of tertiary amines under mild and sustainable reaction conditions.
Improved simplicity and practicability in copper-catalyzed alkynylation of tetrahydroisoquinoline
作者:Birgit Gröll、Patricia Schaaf、Michael Schnürch
DOI:10.1007/s00706-016-1877-5
日期:2017.1
AbstractAlkynylation reactions of N-protected tetrahydroisoquinolines have been performed using several different protocols of cross dehydrogenative coupling. Initially, a CuCl-catalyzed method was investigated, which worked well with three different N-protecting groups, namely phenyl, PMP, and benzyl and t-BuOOH as oxidant in acetonitrile as solvent. The peroxide could then be replaced by simple air