ChemInform Abstract: Asymmetric Aziridination by Reaction of Chiral N-Sulfinylimines with Sulfur Ylides: Stereoselectivity Improvement by Use of tert- Butylsulfinyl Group as Chiral Auxiliary.

ChemInform ◽  
2010 ◽  
Vol 28 (14) ◽  
pp. no-no
Author(s):  
J. L. GARCIA RUANO ◽  
I. FERNANDEZ ◽  
M. DEL PRADO CATALINA ◽  
A. ALCUDIA CRUZ
1996 ◽  
Vol 7 (12) ◽  
pp. 3407-3414 ◽  
Author(s):  
JoséL García Ruano ◽  
Inmaculada Fernández ◽  
Miriam del Prado Catalina ◽  
Ana Alcudia Cruz

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Lei Li ◽  
Min Yang ◽  
Qiuqin He ◽  
Renhua Fan

Abstract Insertion of atoms into aromatic carbon-nitrogen bonds is an appealing method for the synthesis of nitrogen-containing molecules and it has the advantage of the availability and abundance of anilines. However, the direct cleavage of aromatic carbon-nitrogen bonds is challenging due to the particularly inert and stable nature of these bonds. Here we report a formal, enantioselective one-carbon insertion into an aromatic carbon-nitrogen bond via an aromaticity dissembly-reconstruction process to directly convert anilines to chiral α-branched benzylic amines. The process involves oxidative dearomatization of para-substituted anilines, chiral sulfur ylide-mediated asymmetric aziridination, and subsequent rearrangement. Chiral sulfur ylides serve as one-carbon insertion units.


1995 ◽  
Vol 36 (2) ◽  
pp. 295-298 ◽  
Author(s):  
JoséL García Ruano ◽  
Inmaculada Fernández ◽  
Chafiq Hamdouchi

ChemInform ◽  
2010 ◽  
Vol 26 (21) ◽  
pp. no-no
Author(s):  
J. L. GARCIA RUANO ◽  
I. FERNANDEZ ◽  
C. HAMDOUCHI

1997 ◽  
Vol 120 (1) ◽  
pp. 361-362
Author(s):  
Varinder Aggarwal ◽  
Alison Thompson ◽  
Ray Jones ◽  
Mike Standen

1997 ◽  
Vol 120 (1) ◽  
pp. 361-362
Author(s):  
Varinder K. Aggarwal ◽  
Alison Thompson ◽  
Ray V.H. Jones ◽  
Mike C.H. Standen

ARKIVOC ◽  
2010 ◽  
Vol 2010 (7) ◽  
pp. 65-80 ◽  
Author(s):  
Zheng Xue ◽  
Veronica M. Dee ◽  
Louisa J. Hope-Weeks ◽  
Bruce R. Whittlesey ◽  
Michael F. Mayer

2020 ◽  
Vol 24 (20) ◽  
pp. 2341-2355
Author(s):  
Thaipparambil Aneeja ◽  
Sankaran Radhika ◽  
Mohan Neetha ◽  
Gopinathan Anilkumar

One-pot syntheses are a simple, efficient and easy methodology, which are widely used for the synthesis of organic compounds. Imidazoline is a valuable heterocyclic moiety used as a synthetic intermediate, chiral auxiliary, chiral catalyst and a ligand for asymmetric catalysis. Imidazole is a fundamental unit of biomolecules that can be easily prepared from imidazolines. The one-pot method is an impressive approach to synthesize organic compounds as it minimizes the reaction time, separation procedures, and ecological impact. Many significant one-pot methods such as N-bromosuccinimide mediated reaction, ring-opening of tetrahydrofuran, triflic anhydrate mediated reaction, etc. were reported for imidazoline synthesis. This review describes an overview of the one-pot synthesis of imidazolines and covers literature up to 2020.


2020 ◽  
Vol 24 (8) ◽  
pp. 900-908
Author(s):  
Ram Naresh Yadav ◽  
Amrendra K Singh ◽  
Bimal Banik

Numerous O (oxa)- and S (thia)-glycosyl esters and their analogous glycosyl acids have been accomplished through stereoselective glycosylation of various peracetylated bromo sugar with benzyl glycolate using InBr3 as a glycosyl promotor followed by in situ hydrogenolysis of resulting glycosyl ester. A tandem glycosylating and hydrogenolytic activity of InBr3 has been successfully investigated in a one-pot procedure. The resulting synthetically valuable and virtually unexplored class of β-CMGL (glycosyl acids) could serve as an excellent potential chiral auxiliary in the asymmetric synthesis of a wide range of enantiomerically pure medicinally prevalent β-lactams and other bioactive molecules of diverse medicinal interest.


2021 ◽  
Vol 23 (4) ◽  
pp. 1451-1456
Author(s):  
Hai-Jun Leng ◽  
Qing-Zhu Li ◽  
Peng Xiang ◽  
Ting Qi ◽  
Qing-Song Dai ◽  
...  

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