Formula: C5H8N2. In 2020.0 J ORG CHEM published article about 2+2 PHOTOCYCLOADDITION REACTIONS; PHOTOREDOX CATALYSIS; BRONSTED ACID; THIOXANTHONE; ALKYLATION; ELECTRON; ACTIVATION; AMINATION; THIOUREA in [Lyu, Jiyuan; Claraz, Aurelie; Masson, Geraldine] Univ Paris Saclay, UPR2301, CNRS, Inst Chim Subst Nat, F-91198 Gif Sur Yvette, France; [Lyu, Jiyuan; Allain, Clemence] Univ Paris Saclay, ENS Paris Saclay, PPSM, CNRS, F-91190 Gif Sur Yvette, France; [Vitale, Maxime R.] PSL Univ, Sorbonne Univ, CNRS, Lab Biomol,LBM,Dept Chim,Ecole Normale Super, F-75005 Paris, France in 2020.0, Cited 70.0. The Name is 3,5-Dimethyl-1H-pyrazole. Through research, I have a further understanding and discovery of 67-51-6.
Chiral phosphoric acid based organocatalysis and visible-light photocatalysis have both emerged as promising technologies for the sustainable production of fine chemicals. In this context, we have envisioned the design and the synthesis of a new class of chimeric catalytic entities that would feature both catalytic capabilities. Given their multitask nature, such catalysts would be particularly attractive for the development of new catalytic transformations, tandem processes in particular. Toward this goal, several BINOL-based chiral phosphoric acid backbones presenting one or two visible-light-sensitive thioxanthone moieties have been prepared and studied. The utility of these new photoactive chiral organocatalysts is then demonstrated in the enantioselective tandem three-component electrophilic amination of enecarbamates. Of note, the C-1-symmetric organo/photocatalyst has shown a better catalytic activity than those presenting a C-2 symmetry.
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Reference:
Pyrazole – Wikipedia,
,Pyrazoles – an overview | ScienceDirect Topics