Synthesis of diheteroatomic five‐membered heterocyclic compounds from α, β‐unsaturated aldehydes

NA Keiko, NV Vchislo - Asian Journal of Organic Chemistry, 2016 - Wiley Online Library
The recent increase in interest in the chemistry of azoles has been owing to their paramount
importance in several essential fields of research, such as pharmacology, medicine, biology …

Stereocontrolled alkylative construction of quaternary carbon centers

DA Kummer, WJ Chain, MR Morales… - Journal of the …, 2008 - ACS Publications
Protocols for the stereodefined formation of α, α-disubstituted enolates of pseudoephedrine
amides are presented followed by the implementation of these in diastereoselective …

Application of Catalytic Dynamic Resolution of N-Boc-2-lithiopiperidine to the Asymmetric Synthesis of 2-Aryl and 2-Vinyl Piperidines

TK Beng, RE Gawley - Organic letters, 2011 - ACS Publications
The highly enantioselective synthesis of 2-aryl-and 2-vinyl-piperidines has been
accomplished through a catalytic dynamic resolution (CDR) of N-Boc-2-lithiopiperidine. The …

Synthesis of 2-Arylpiperidines by Palladium Couplings of Aryl Bromides with Organozinc Species Derived from Deprotonation of N-Boc-Piperidine

I Coldham, D Leonori - Organic Letters, 2008 - ACS Publications
The organolithium species derived from proton abstraction of N-Boc-piperidine with s-BuLi
and TMEDA can be transmetalated to the organozinc reagent, and this organometallic …

Regioselective and Stereoselective Copper(I)-Promoted Allylation and Conjugate Addition of N-Boc-2-lithiopyrrolidine and N-Boc-2-lithiopiperidine

I Coldham, D Leonori - The Journal of organic chemistry, 2010 - ACS Publications
Copper salts have been screened for transmetalation and electrophilic quench of N-tert-
butoxycarbonyl-2-lithiopyrrolidine (N-Boc-2-lithiopyrrolidine) and N-Boc-2-lithiopiperidine …

Enantioselective syntheses of both enantiomers of noranabasamine

L Miao, SC DiMaggio, H Shu, ML Trudell - Organic letters, 2009 - ACS Publications
Both the R and S enantiomers of the amphibian alkaloid noranabasamine were prepared
in> 30% overall yield with 80% ee and 86% ee, respectively. An enantioselective iridium …

Asymmetric synthesis of piperidines and octahydroindolizines using a one-pot ring-closure/N-debenzylation procedure

SG Davies, AM Fletcher, DG Hughes, JA Lee, PD Price… - Tetrahedron, 2011 - Elsevier
The conjugate addition of an enantiopure lithium amide to a ζ-hydroxy-α, β-unsaturated
ester followed by a one-pot ring-closure/N-debenzylation protocol has been used in the …

Synthesis of optically active heterocyclic compounds via deracemization of 1, 2-diol monotosylate derivatives bearing a long aliphatic chain by a combination of …

K Matsumoto, K Usuda, H Okabe, M Hashimoto… - Tetrahedron …, 2013 - Elsevier
We have succeeded in accomplishing the deracemization of (±)-2-acetoxydecyl and (±)-
acetoxy-6-benzyloxyhexyl tosylates, which have a long substituent, via an enzyme-mediated …

Stereoselective Multicomponent Assembly of Enantiopure Oxazolopiperidines and-azepines

N Zill, A Schoenfelder, N Girard… - The Journal of Organic …, 2012 - ACS Publications
A multicomponent reaction (MCR) based on a cyclohydrocarbonylation (CHC) driven by
hydroformylation was set up toward the efficient diastereoselective preparation of …

Gold‐Catalyzed Oxyarylation/Hydroxylation of N‐Alkoxypropiolamides for Chemoselective Synthesis of 4‐Aryl‐3‐(2H)‐isoxazolones

M Yasui, N Tahara, H Matsubara… - Advanced Synthesis …, 2022 - Wiley Online Library
(2H)‐isoxazolone is an important skeletal structure in medicinal and agricultural chemistry.
However, its synthetic methodology has limited substrate scope and requires …