Results 111 to 120 of about 40,681 (241)
Acetophenone Derivatives; N-Diphenylmethyl and N-Fluorenyl Piperidines
, 1949 This thesis is a study of α-(4-aminophenylsulfonyl)-acetophenone derivatives; n-diphenylmethyl and n-fluorenyl ...
Middleton, William J.
core
FeCl3-Catalyzed Highly Diastereoselective Synthesis of Substituted Piperidines and Tetrahydropyrans
, 2016 The eco-friendly and highly diastereoselective synthesis of substituted cis-2,6-piperidines and cis-2,6-tetrahydropyrans is described. The key step of this method is the iron-catalyzed thermodynamic equilibration of 2-alkenyl 6-substituted piperidines ...
Sébastien Reymond (1710181) +5 more
core +1 more source
Designing chemical systems for precision deuteration of medicinal building blocks
Nature CommunicationsMethods are lacking that can prepare deuterium-enriched building blocks, in the full range of deuterium substitution patterns at the isotopic purity levels demanded by pharmaceutical use.
Jonathan D. Dabbs +8 more
doaj +1 more source
2,3,4-Trisubstituted piperidines. A stereocontolled approach
, 2015 This thesis details a methodology utilising various synthetic pathways towards cyclisation precursors suitable for use in Prins and carbonyl-ene cyclisations to effect 2,3,4-trisubstituted piperidines.
Bergman, Zara Dominique
core
Journal of the Brazilian Chemical Society, 2001 The stereoselective addition of chiral and achiral titanium enolates derived from the corresponding N-acyl oxazolidin-2-ones to 5- and 6- membered N-acyliminium ions afforded 2-substituted pyrrolidines in moderate to good diastereoisomeric ratio (5:1 to ...
Pilli Ronaldo A. +2 more
doaj
Selective Reductions of Complex Pyridines via <i>N</i>Tf-Pyridinium Salts. [PDF]
Synthesis (Stuttg)Josephitis CM, McNally A.
europepmc +1 more source
Radical Sampling Enabled Saturated N-Heterocycle Cyclization. [PDF]
J Am Chem SocCai Q +6 more
europepmc +1 more source
Photoactive Iminobismuthanes for Catalytic C-H Amination. [PDF]
J Am Chem SocTsuruta T +7 more
europepmc +1 more source