Indirect reduction of CO<sub>2</sub> and recycling of polymers by manganese-catalyzed transfer hydrogenation of amides, carbamates, urea derivatives, and polyurethanes
作者:Xin Liu、Thomas Werner
DOI:10.1039/d1sc02663a
日期:——
approach to the indirect reduction of CO2. Notably, these are the first examples on the reduction of carbamates and urea derivatives as well as on the C–N bond cleavage in amides by transfer hydrogenation. The general applicability of this methodology is highlighted by the successful reduction of 12 urea derivatives, 26 carbamates and 11 amides. The corresponding amines, alcohols and methanol were obtained
Preparation of chiral 6,7-dihydroxy geranyloxy compounds
申请人:DSM CATALYTICA PHARMACEUTICALS, INC.
公开号:US20020095061A1
公开(公告)日:2002-07-18
The present invention provides a method for enantioselectively producing a nonracemic 6,7-dihydroxy geranyloxy compound from a geranyloxy compound. In particular, methods of the present invention involve enantioselectively epoxidizing the geranyloxy compound and hydrolyzing the epoxide moiety under conditions sufficient to produce the nonracemic 6,7-dihydroxy geranyloxy compound.
Catalytic C–N Bond-Forming Reactions Enabled by Proton-Coupled Electron Transfer Activation of Amide N–H Bonds
作者:Lucas Q. Nguyen、Robert R. Knowles
DOI:10.1021/acscatal.6b00486
日期:2016.5.6
of proton-coupled electron transfer (PCET) to facilitate direct homolytic bond activations of common organic functional groups that are challenging substrates for conventional hydrogen atom transfer catalysts. This perspective details our efforts to develop oxidative PCET platforms for activating the strong N–H bonds of amides, providing catalytic access to synthetically useful amidyl radicals. We