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
The invention relates to compounds of Formula I or Ia as disclosed herein:
or pharmaceutically acceptable salts thereof or tautomers thereof.
US8575221B2
申请人:——
公开号:US8575221B2
公开(公告)日:2013-11-05
Visible-light-mediated deuteration of aldehydes with D2O via polarity-matched reversible hydrogen atom transfer
作者:Jian-Yang Dong、Wen-Tao Xu、Fu-Yang Yue、Hong-Jian Song、Yu-Xiu Liu、Qing-Min Wang
DOI:10.1016/j.tet.2021.131946
日期:2021.2
protocol for visible-light-mediated metal-free deuteration of aldehydes in D2O with synergistic photoredox and thiol catalysis. The protocol is highly efficient, has a broad substrate scope, and shows excellent functional group tolerance and selectivity, all of which make it suitable for generating libraries of deuterated compounds. The efficient deuteration was attributed to a photoredox-catalyzed polarity-matched
Computational and experimental structure–reactivity relationships: evidence for a side reaction in Alpine-Borane reductions of d-benzaldehydes
作者:Hui Zhu、N. Soledad Reyes、Matthew P. Meyer
DOI:10.1016/j.tetlet.2009.09.109
日期:2009.12
borabicyclo[3.3.1]nonane (Alpine-Borane). This is likely because of the extreme size disparity of groups on either side of the carbonyl. Here, we present a structure-reactivity study whereby the reductions of variably substituted d-benzaldehydes are explored using highly sensitive measures for enantiomeric excess and relative reactivity. These results are compared to the relativerates predicted from