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
作者:ANDERSSON, CARL-MAGNUS、HALLBERG, ANDERS
DOI:——
日期:——
Two-Chamber Hydrogen Generation and Application: Access to Pressurized Deuterium Gas
作者:Amalie Modvig、Thomas L. Andersen、Rolf H. Taaning、Anders T. Lindhardt、Troels Skrydstrup
DOI:10.1021/jo500801t
日期:2014.6.20
Hydrogen and deuterium gas were produced and directly applied in a two-chamber system. These gaseous reagents were generated by the simple reaction of metallic zinc with HCl in water for H2 and DCl in deuterated water for D2. The setup proved efficient in classical Pd-catalyzed reductions of ketones, alkynes, alkenes, etc. in near-quantitative yields. The method was extended to the synthesis and isotope