VOL-1 ISSUE-3, October 2017

Serial NoTitle & Author NameViewsDownloads
1.Study of Antioxidant Property of the Rhizome Extract of Polygonatum cirrhifolium (Mahameda) and its use in the green synthesis of Gold nanoparticles

By Braja Gopal Bag,* Shib Shankar Dash and Anup Mandal

Pages : 66-70

The antioxidant efficacy of the rhizome extract of Polygonatum cirrhifolium (Mahameda) has been studied against a stable 2, 2-diphenylpicrylhydrazyl (DPPH) radical at room temperature. The chemical constituents present in the rhizome extract have been utilized for the one step synthesis of stable gold nanoparticles at room temperature under very mild conditions. The synthesized gold nanoparticles were well characterized by surface plasmon resonance spectroscopy, high resolution transmission ele

2.Synthetic studies of antascomicin A: Construction of C1-C16 fragment

By Jithender Reddy Vakiti and Subhash Ghosh*

Pages : 71-73

This communication describes the stereoselective synthesis of C1-C16 fragment of antascomicin A, a non-immunosuppressive immunophil-binding natural product. Evans aldol reaction was used extensively to install all the stereo centres present in the fragment. The hemikatel present in the fragment was synthesized via DMP-mediated oxidation of -hydroxy amide followed by acid catalyzed hemiketalization.

3.Terpenoids as Renewable Nano-Sized Building Blocks

By Braja Gopal Bag,* Abir Chandan Barai, Sk Nurul Hasan, Subhajit Das, Chhabi Garai, Subrata Ghorai, Saikat Kumar Panja

Pages : 74-81

Terpenoids are a large and structurally group of natural products containing multiple five carbon containing isoprene units. In the current studies, detailed computations have been carried out with 120 naturally occurring mono- (C10), sesqui- (C15), di- (C20), sester- (C25), sesqua- (C35) and tetra- (C40) terpenoids using Gaussian 09 software with with Gauss view 07 and molecular mechanics calculation using Serena software.

4.Ficus carica Linn (Dumur) Fruit Extract Mediated Green Synthesis of Gold Nanoparticles and its Application in Catalytic Reduction

By Shib Shankar Dash, Braja Gopal Bag* and Abhisek Midya

Pages : 82-86

The fruit extract of Ficus carica Linn (Dumur) is rich in different types of plant secondary metabolites such as terpenoids, polyphenols including flavanoids, etc. We have demonstrated the use of the fruit extract for the synthesis of gold nanoparticles in water at room temperature under very mild conditions.

5.Synthesis of 6-hydroxy-N-(6-methylpyridin-2-yl) naphthalene-2-carboxamide and its alkoxy analogues

By Braja G. Bag,* Subrata Ghorai, Saikat K. Panja, Shaishab K. Dinda, Koushik Paul

Pages : 87-92

6-hydroxy-N-(6-methylpyridin-2-yl)naphthalene-2-carboxamide and its alkoxy analogues bearing long alkyl chains have been synthesized using 6-hydroxy-2-naphthoic acid and 2-amino-6-picoline. The facile synthetic scheme reported here using conventional laboratory reagents opens up a new strategy for the generation of libraries of such compounds in high yields.