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Transition‐Metal‐Free Deconstructive Lactamization of Piperidines
Angewandte Chemie - International Edition, 2019One of the major challenges in organic synthesis is the activation or deconstructive functionalization of unreactive C(sp3 )-C(sp3 ) bonds, which requires using transition or precious metal catalysts.
Silvano Cruz-gregorio +2 more
exaly +2 more sources
Angewandte Chemie - International Edition, 2016 An efficient, modular and straightforward entry to tetrahydropyridines and piperidines is reported. This reaction is based on a formal intramolecular hydroalkylation of readily available, properly substituted ynamides which, upon simple activation under ...
Morgan Lecomte, Gwilherm Evano
exaly +2 more sources
[Co(TPP)]‐Catalyzed Formation of Substituted Piperidines
Chemistry - A European Journal, 2019 Radical cyclization via cobalt(III)‐carbene radical intermediates is a powerful method for the synthesis of (hetero)cyclic structures. Building on the recently reported synthesis of five‐membered N‐heterocyclic pyrrolidines catalyzed by CoII porphyrins ...
Bas De Bruin, Ching-ping Wong
exaly +2 more sources
Equatorial piperidine and the piperidine–water complex.
Chemical Physics, 1998Abstract The rotational spectra of all mono-substituted 13 C -isotopomers of equatorial piperidine and of the piperidine–water complex were analyzed and their rotational, centrifugal distortion, and quadrupole coupling constants were derived.
Wolfgang Stahl, Ute Spoerel
openaire +2 more sources
Multicomponent synthesis of highly functionalized piperidines
Synthetic Communications, 2020Highly functionalized piperidines are a versatile class of nitrogen-containing heterocycles which find broad applications in numerous fields such as medicinal chemistry and drug discovery research.
Leili Shaker Ardakani +2 more
semanticscholar +1 more source
Piperidine nucleosides and nucleotides
Nucleic Acids Symposium Series, 2008A novel series of racemic piperidin-3-yl and piperidin-4-yl derivatives of nucleobases and their phosphonate derivatives were prepared.
Ivan Rosenberg +4 more
openaire +3 more sources
Journal of the American Chemical Society, 2018
Described herein is the development of an unprecedented route to bridged sila- N-heterocycles via B(C6F5)3-catalyzed cascade silylation of N-aryl piperidines with hydrosilanes. Mechanistic studies indicated that an outer-sphere ionic path is operative to
Jianbo Zhang, Sehoon Park, Sukbok Chang
semanticscholar +1 more source
Described herein is the development of an unprecedented route to bridged sila- N-heterocycles via B(C6F5)3-catalyzed cascade silylation of N-aryl piperidines with hydrosilanes. Mechanistic studies indicated that an outer-sphere ionic path is operative to
Jianbo Zhang, Sehoon Park, Sukbok Chang
semanticscholar +1 more source
Stereoselective Synthesis of Piperidines by Iridium‐Catalyzed Cyclocondensation
Angewandte Chemie - International Edition, 2017An iridium-catalyzed cyclocondensation of amino alcohols and aldehydes is reported. Intramolecular allylic substitution by an enamine intermediate and subsequent in situ reduction furnishes 3,4-disubstituted piperidines with high enantiospecificity and ...
Tobias Sandmeier, Erick Carreira
exaly +2 more sources
Organic Letters, 2019
Herein we report a diastereoselective synthesis of medium-sized carbocycle-fused piperidines via [1,n (n = 6, 7)]-[1,5]-sequential hydride shift triggered double C(sp3)-H bond functionalization.
Miyabi Kataoka +3 more
semanticscholar +1 more source
Herein we report a diastereoselective synthesis of medium-sized carbocycle-fused piperidines via [1,n (n = 6, 7)]-[1,5]-sequential hydride shift triggered double C(sp3)-H bond functionalization.
Miyabi Kataoka +3 more
semanticscholar +1 more source
, 2016
Access to enantiomerically pure chiral mono- and disubstituted piperidines and pyrrolidines has been achieved using a biocatalytic cascade involving carboxylic acid reductase (CAR), ω-transaminase (ω-TA), and imine reductase (IRED) enzymes. Starting from
Scott P. France +7 more
semanticscholar +1 more source
Access to enantiomerically pure chiral mono- and disubstituted piperidines and pyrrolidines has been achieved using a biocatalytic cascade involving carboxylic acid reductase (CAR), ω-transaminase (ω-TA), and imine reductase (IRED) enzymes. Starting from
Scott P. France +7 more
semanticscholar +1 more source