741717-64-6Relevant articles and documents
Unveiling Potent Photooxidation Behavior of Catalytic Photoreductants
Targos, Karina,Williams, Oliver P.,Wickens, Zachary K.
supporting information, p. 4125 - 4132 (2021/04/07)
We describe a photocatalytic system that reveals latent photooxidant behavior from one of the most reducing conventional photoredox catalysts, N-phenylphenothiazine (PTH). This aerobic photochemical reaction engages difficult to oxidize feedstocks, such as benzene, in C(sp2)-N coupling reactions through direct oxidation. Mechanistic studies are consistent with activation of PTH via photooxidation and with Lewis acid cocatalysts scavenging inhibitors inextricably formed in this process.
nBu3P-catalyzed desulfonylative [3 + 2] cycloadditions of allylic carbonates with arylazosulfones to pyrazole derivatives
Zhang, Qi,Meng, Ling-Guo,Wang, Kuai,Wang, Lei
supporting information, p. 872 - 875 (2015/04/21)
Highly efficient nBu3P-catalyzed desulfonylative [3 + 2] cycloadditions of allylic carbonates with arylazosulfones were developed for the synthesis of pyrazole derivatives. The reactions proceed smoothly under mild conditions to gene
N-1 Substituted Ethyl 4-Pyrazolecarboxylates: Synthesis and Spectroscopic Investigations
Holzer, Wolfgang,Seiringer, Gertrud
, p. 865 - 872 (2007/10/02)
The synthesis of various N-1 substituted ethyl 4-pyrazolecarboxylates via reaction of ethyl 2-formyl-3-oxopropionate (= ethoxycarbonylmalondialdehyde) with appropriately substituted hydrazines is described.Moreover, detailed nmr-spectroscopic investigations with the title compounds are presented.
