Construction of Chiral All‐Carbon Quaternary Stereocenters by Asymmetric Friedel−Crafts Reaction of Isatin Derivatives

Author(s):  
Jindong Li ◽  
Wenjing Lu ◽  
Yangmian Lu ◽  
Zhenggen Zha ◽  
Zhiyong Wang
Author(s):  
Shukla PK ◽  
Singh MP ◽  
Patel R

Indole and its derivatives have engaged a unique place in the chemistry of nitrogen heterocyclic compounds. The recognition of the plant growthhormone, heteroauxin, the significant amino acids, tryptamine & tryptophan and anti-inflammatory drug, indomethacine are the imperativederivatives of indole which have added stimulus to this review work. Isatin (1H-indole-2,3-dione), an indole derivative of plant origin. Althoughit is a naturally occurring compound, but was synthesized by Erdmann and Laurent in 1840 before it was found in nature. Isatin is a versatileprecursor for many biologically active molecules and its diversified nature makes it a versatile substrate for further modifications. It is concernedin many pharmacological activities like anti-malarial, antiviral, anti-allergic, antimicrobial etc; isatin and its derivatives have been also found todemonstrate promising outcomes against various cancer cell lines. This review provides a brief overview on the recent advances and futureperspectives on chemistry and biological aspects of isatin and its derivatives reported in the recent past.


2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
G. Kiran ◽  
T. Maneshwar ◽  
Y. Rajeshwar ◽  
M. Sarangapani

A series of β-Isatin aldehyde-N,N′-thiocarbohydrazone derivatives were synthesized and assayed for theirin vitroantimicrobial and antioxidant activity. The new compounds were characterized based on spectral (FT-IR, NMR, MS) analyses. All the test compounds possessed a broad spectrum of activity having MIC values rangeing from 12.5 to 400 μg/ml against the tested microorganisms. Among the compounds3e,3jand3nshow highest significant antimicrobial activity. The free radical scavenging effects of the test compounds against stable free radical DPPH (α,α-diphenyl-β-picryl hydrazyl) and H2O2were measured spectrophotometrically. Compounds3j,3n,3l, and3e, respectively, had the most effective antioxidant activity against DPPH and H2O2scavenging activity.


Author(s):  
Andrés Arribas ◽  
Martín Calvelo ◽  
David F. Fernández ◽  
Catarina A. B. Rodrigues ◽  
José L. Mascareñas ◽  
...  

2005 ◽  
Vol 7 (25) ◽  
pp. 5617-5620 ◽  
Author(s):  
Scott E. Denmark ◽  
Ramil Y. Baiazitov

ChemInform ◽  
2011 ◽  
Vol 42 (43) ◽  
pp. no-no
Author(s):  
Maria del Mar Sanchez Duque ◽  
Olivier Basle ◽  
Nicolas Isambert ◽  
Anouk Gaudel-Siri ◽  
Yves Genisson ◽  
...  

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