作者:Thomas M. Gøgsig、Dennis U. Nielsen、Anders T. Lindhardt、Troels Skrydstrup
DOI:10.1021/ol300837d
日期:2012.5.18
The direct carbonylativepalladiumcatalyzedsynthesis of monoprotected 1,3-ketoaldehydes is reported starting from aryl iodides applying near stoichiometric amounts of carbonmonoxide. Besides representing platforms for a variety of heterocyclic structures, these motives serve as viable precursors for the highly relevant aryl methyl ketones. The presented strategy can also be adapted for the facile
Three COming together: The first carbonylative Heck coupling reaction of arylbromides and vinyl ethers leading to 1‐aryl‐3‐alkoxy‐2‐propen‐1‐ones has been established (see scheme). Based on this coupling methodology, a novel one‐pot synthesis of aryl‐substituted pyrazoles was also realized.
COtab: Expedient and Safe Setup for Pd-Catalyzed Carbonylation Chemistry
作者:Hugo P. Collin、Wallace J. Reis、Dennis U. Nielsen、Anders T. Lindhardt、Marcelo S. Valle、Rossimiriam P. Freitas、Troels Skrydstrup
DOI:10.1021/acs.orglett.9b01423
日期:2019.8.2
Bench-stable tablets (COtabs) have been developed for the rapid and safe production of carbon monoxide. The tablets can be made in less than 5 min without the use of a glovebox and only require a stock solution of an amine base to liberate a specific quantity of CO in a two-chamber system. The COtabs were tested in five different carbonylation reactions and provided similar yields compared to literature procedures. Finally, a gram-scale reaction was conducted, as well as C-13-isotope labeling of the anticancer drug, olaparib.
ANDERSSON, CARL-MAGNUS;HALLBERG, ANDERS, J. ORG. CHEM., 53,(1988) N 18, C. 4257-4263