[EN] SYNTHESIS OF DEUTERATED ALDEHYDES<br/>[FR] SYNTHÈSE D'ALDÉHYDES DEUTÉRÉS
申请人:UNIV ARIZONA
公开号:WO2021045879A1
公开(公告)日:2021-03-11
Described are methods for preparing a deuterated aldehyde using N-heterocyclic carbene catalysts in a solvent comprising D2O. The methods may be used to convert a wide variety of aldehydes (e.g., aryl, alkyl, or alkenyl aldehydes) to C-1 deuterated aldehydes under mild reaction conditions without functionality manipulation.
Azoxyarenes are among important scaffolds in organic molecules. Direct oxidativecoupling of primary anilines provides a concise fashion to construct them. However, whether these scaffolds can be prepared from secondary N-alkylanilines is not well explored. Here, we present a catalytic selective oxidativecoupling of secondary N-alkylaniline to afford azoxyarene with tungsten catalyst under mild conditions
A facile, one-pot approach for synthesizing deuterated aldehydes from arylmethyl halides was developed using D2O as the deuterium source. The efficient process is realized by a sequence of formation, H/D exchange, and oxidation of pyridinium salt intermediates. The mild and air-compatible reaction conditions enable efficient synthesis of diverse deuterated aldehydes with high deuterium incorporation
Palladium/Rhodium Cooperative Catalysis for the Production of Aryl Aldehydes and Their Deuterated Analogues Using the Water–Gas Shift Reaction
作者:Malek Y. S. Ibrahim、Scott E. Denmark
DOI:10.1002/anie.201806148
日期:2018.8.6
to effect the reductive carbonylation of arylhalides in moderate to good yield. In this reaction, water is the hydride source, and CO serves both as the carbonyl source and the terminal reductant through the water–gas shift reaction. The catalytic generation of the Rh hydride allows for the selective formation of highly hindered aryl aldehydes that are inaccessible through previously reported reductive
Formyl-selective deuteration of aldehydes with D<sub>2</sub>O <i>via</i> synergistic organic and photoredox catalysis
作者:Jianyang Dong、Xiaochen Wang、Zhen Wang、Hongjian Song、Yuxiu Liu、Qingmin Wang
DOI:10.1039/c9sc05132e
日期:——
Formyl-selective deuteration of aldehydes is of high interest for labeling purposes and for optimizing properties of drug candidates. Herein, we report a mild general method for formyl-selective deuterium labeling of aldehydes with D2O, an inexpensive deuterium source, via a synergistic combination of light-driven, polyoxometalate-facilitated hydrogen atom transfer and thiol catalysis. This highly