1,3,2‐Diazaphospholenes Catalyze the Conjugate Reduction of Substituted Acrylic Acids
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DOI: 10.1002/cctc.202000662
Abstract: The potent nucleophilicity and remarkably low basicity of 1,3,2‐diazaphospholenes (DAPs) is exploited in a catalytic, metal‐free 1,4‐reduction of free α,β‐unsaturated carboxylic acids. Notably, the reduction occurs without a prior deprotonation of the carboxylic acid moiety… read more here.
Keywords: reduction; reduction substituted; catalyze conjugate; diazaphospholenes catalyze ... See more keywords
Reduction of 2-H-substituted pyrrolinium cations: the carbon-carbon single bond in air stable 2,2'-bipyrrolidines as a two-electron-source.
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DOI: 10.1039/d3cc00891f
Abstract: Reduction of 2-H-substituted pyrrolinium cations via initially formed secondary radicals results in either dimerisation or H-abstracted products, while the outcome depends on the N-substituents. The resultant central carbon-carbon single bond in the dimerised 2,2'-bipyrrolidine derivatives… read more here.
Keywords: carbon; carbon carbon; substituted pyrrolinium; carbon single ... See more keywords
Boron-Catalyzed Hydrogenative Reduction of Substituted Quinolines to Tetrahydroquinolines with Hydrosilanes
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DOI: 10.1055/s-0036-1588442
Abstract: A metal-free procedure for the hydrogenative reduction of substituted N-heteroaromatics has been developed by using hydrosilanes as reducing agents. The optimized conditions were successfully applied to the reactions of quinolines, quinoxalines, and quinoline N-oxides. They… read more here.
Keywords: reduction; reduction substituted; substituted quinolines; boron catalyzed ... See more keywords
MOF-808 as a Highly Active Catalyst for the Diastereoselective Reduction of Substituted Cyclohexanones
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DOI: 10.3390/molecules27196315
Abstract: Zr-containing MOF-808 is an excellent heterogeneous catalyst for the diastereoselective Meerwein–Ponndorf–Verley reduction of substituted cyclohexanones. The presence of substituents at the 2 or 3 position of the cyclohexanone ring strongly drives the reaction towards the… read more here.
Keywords: mof 808; catalyst; catalyst diastereoselective; reduction substituted ... See more keywords