ChemInform Abstract: One-Pot Base-Promoted Tandem Michael Addition-Intramolecular Aldolization. Stereoselective Synthesis and Reactivity of 2- Hydroxybicyclo(3.2.1)octan-8-ones.

ChemInform ◽  
2010 ◽  
Vol 27 (10) ◽  
pp. no-no
Author(s):  
M.-H. FILIPPINI ◽  
R. FAURE ◽  
J. RODRIGUEZ
2012 ◽  
Vol 8 ◽  
pp. 567-578 ◽  
Author(s):  
Pavol Jakubec ◽  
Dane M Cockfield ◽  
Madeleine Helliwell ◽  
James Raftery ◽  
Darren J Dixon

A versatile nitro-Mannich/lactamisation cascade for the direct stereoselective synthesis of heavily decorated 5-nitropiperidin-2-ones and related heterocycles has been developed. A highly enantioenriched substituted 5-nitropiperidin-2-one was synthesised in a four component one-pot reaction combining an enantioselective organocatalytic Michael addition with the diastereoselective nitro-Mannich/lactamisation cascade. Protodenitration and chemoselective reductive manipulation of the heterocycles was used to install contiguous and fully substituted stereocentres in the synthesis of substituted piperidines.


Author(s):  
Sundarababu Baskaran ◽  
Kirana D V ◽  
Kanak Kanti Das

A one-pot catalytic method has been developed for the stereoselective synthesis of cyclopropane-fused cyclic amidines using CuBr2/K2S2O8 as an efficient single electron transfer (SET) oxidative system. The generality of this...


RSC Advances ◽  
2021 ◽  
Vol 11 (24) ◽  
pp. 14755-14768
Author(s):  
Malihe Akhavan ◽  
Ahmadreza Bekhradnia

An efficient, green, one-pot, and three-component protocol has been reported for the stereoselective synthesis of a new class of spiro thiazolidines.


2014 ◽  
Vol 50 (50) ◽  
pp. 6574-6577 ◽  
Author(s):  
Sam E. R. Auty ◽  
Oliver Andrén ◽  
Michael Malkoch ◽  
Steven P. Rannard

We present the first xanthate surface functional dendrimers which undergo rapid one-pot deprotection to thiols and subsequent acrylate Michael addition .


Synlett ◽  
2018 ◽  
Vol 29 (12) ◽  
pp. 1589-1592 ◽  
Author(s):  
Abolfazl Olyaei ◽  
Mahnaz Saraei ◽  
Reyhaneh Khoeiniha

A high-yielding cyclocondensation of 4-hydroxycoumarin, phenylglyoxal monohydrate, and heteroarylamines proceeds without catalysis, which gives novel functionalized furo[3,2-c]coumarins and heteroarylamino alkylation of coumarin products in acetonitrile under reflux, is reported for the first time. This tandem process involves sequentially an aldol condensation, Michael addition, a ring closure, and dehydration reaction.


2009 ◽  
Vol 351 (1-2) ◽  
pp. 141-146 ◽  
Author(s):  
Yun Shi ◽  
Jing Huang ◽  
Yan-Fang Yang ◽  
Lu-Yong Wu ◽  
Yan-Ning Niu ◽  
...  

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