Versatile enantioselective [3+ 2] cyclization between Imines and allenoates catalyzed by dipeptide‐based phosphines

X Han, F Zhong, Y Wang, Y Lu - Angewandte Chemie, 2012 - infona.pl
Ohne Umschweife: Die Titelreaktion gelingt mit 5 Mol‐% des Katalysators 1 und ist binnen 1
h abgeschlossen. Die 2‐Alkyl‐und 2‐Aryl‐substituierten 3‐Pyrroline werden in guten …

1, 3-Carbon D–A strategy for [3+ 2] cycloadditions/annulations with imines: synthesis of functionalized pyrrolidines and related alkaloids

I Kumar - RSC Advances, 2014 - pubs.rsc.org
Cycloaddition/annulation reactions remain the most attractive methods for the synthesis of
five membered heterocyclic ring systems. Among the three possible strategies for [3+ 2] …

A deciduous directing group approach for the addition of aryl and vinyl nucleophiles to maleimides

KR Bettadapur, V Lanke, KR Prabhu - Chemical Communications, 2017 - pubs.rsc.org
A Rh (III)-catalyzed C–H activation followed by conjugate addition to maleimides, using
carboxylic acid as a traceless/deciduous directing group, to formally furnish a Csp2–Csp3 …

Control of four stereocenters in an organocatalytic domino double Michael reaction: Efficient synthesis of multisubstituted cyclopentanes

B Tan, Z Shi, PJ Chua, G Zhong - Organic Letters, 2008 - ACS Publications
A highly enantioselective and diastereoselective domino organocatalytic double Michael
reaction which provides expedited access to multifunctionalized five-membered rings …

An organocatalytic direct Mannich–cyclization cascade as [3+ 2] annulation: asymmetric synthesis of 2, 3-substituted pyrrolidines

I Kumar, NA Mir, VK Gupta - Chemical Communications, 2012 - pubs.rsc.org
A new method for asymmetric synthesis of 2, 3-substituted pyrrolidines from N-PMP
aldimines and succinaldehyde via formal [3+ 2] cycloaddition is reported. This reaction …

Alkynyl Group as Activating Group: Base‐Catalyzed Diastereoselective Domino Reactions of Electron‐Deficient Enynes

W Li, Y Xiao, J Zhang - Advanced Synthesis & Catalysis, 2009 - Wiley Online Library
This paper describes a base‐catalyzed domino reaction of electron‐deficient enynes with
malonate‐derived α, β‐unsaturated esters and ketones, which provides a rapid …

Asymmetric domino double Michael addition of nitroolefins and aldehyde esters with trans-perhydroindolic acid as an organocatalyst

Q An, J Shen, N Butt, D Liu, Y Liu, W Zhang - Synthesis, 2013 - thieme-connect.com
An asymmetric domino double Michael addition reaction was developed using accessible
substrates to construct biologically important and synthetically challenging cyclopentanes …

Pd-catalyzed [3+ 2] cycloaddition of vinylcyclopropanes with 1-azadienes: synthesis of 4-cyclopentylbenzo [e][1, 2, 3] oxathiazine 2, 2-dioxides

Y Lin, Q Wang, Y Wu, C Wang, H Jia, C Zhang… - RSC …, 2018 - pubs.rsc.org
The palladium-catalyzed [3+ 2] cycloaddition of vinylcyclopropanes and 1-azadienes has
been developed under mild reaction conditions, giving the multisubstituted cyclopentane …

The Literature of Heterocyclic Chemistry, Part X, 2005–2007

LI Belen'kii, VN Gramenitskaya… - Advances in Heterocyclic …, 2011 - Elsevier
Publisher Summary This chapter is a sequel to nine already published surveys in “Advances
in Heterocyclic Chemistry”. It includes a list of monographs and reviews published during the …

[PDF][PDF] Assessment of Malaysian cornsilk bioactive compounds and its cytotoxicity test on brine shrimp (Artemia salina)

WRW Ishak, SM Ali - Health (NY), 2016 - core.ac.uk
Cornsilk contains various beneficial phytochemical compounds. There are claims that
cornsilk exhibits various biological activities in vivo. The aim of the present study was to …