Council of Scientific and Industrial Research

Lakshmi Kantam Mannepalli

Boyapati Manoranjan Choudary

Upasana Bora

Sanjay Kumar Dehury

Kottapalli Koteswara Rao

Naidu Sreenivasa Chowdari

Vijaya Raghavan Kondapuram

Sateesh Madhi

Boyapati Manoranjan Choudhary

Mihir Kanti Choudhuri

Siddhartha Sankar Dhar

Mandapati Mohan Rao

Pravin Raybaji Likhar

Bhanuprakash Kotamarthi

Sitha Sanyasi

Jayashree Nath

Bhavnari Puma Chandra Rao

Venkata Sri Ranganath Kalluri

Swama Jaya Vallabha

Jyothi Karangula

Mihir Kanti Chaudhuri

Deepa Dey

Venkati Sri Ranganath Kalluri

Wancydora Kharmawphlang

Bontha Ramachandra Reddy

Jeyalakshmi Kulandaivelu

Sreedhar Bojja

A process is disclosed for preparing and self-assembly of nanobinary and ternary metal oxy/hydroxides with high surface area and 1-10 nm size by aerogel procedure, involving homogenization of metal organic precursors in solvent mixture, controlled hydrolysis, gelation, hydrothermal treatment and finally supercritical drying of solvent.

Process for preparing self-assembling nanobinary and ternary oxy/hydroxides

The present invention provides an improved, economical and environmentally benign process for metal complexes of acetylacetone having the general formula, M(acac)wherein M is a metal cation selected from the group consisting of Fe, Co, Ni, Cu, Zn, Al, Ca, Mg, Mo, Ru, Re, U, Th, Ce, Na, K, Rb, Cs, V, Cr, and Mn etc., n is an integer which corresponds to the electrovalence of M, are obtained by reacting the corresponding metal hydroxide, metal hydrated oxide or metal oxide with a stoichiometric amount of acetylacetone and separating the product.

Process for making metal acetylacetonates

The present invention relates to an economical and environmentally clean process for the preparation of high quality quaternary ammonium tribromides by oxidation of bromide (Br) in an acidic medium by a biomimetic process involving transition metal ion mediated activation of hydrogen peroxide.

Process for preparing quaternary ammonium tribromides

The present invention comprises the simultaneous ring opening and concomitant N-substitution of various N-tosyl aziridines with different aliphatic and aromatic nitriles in presence of catalytic amount of metal triflates to afford different N-substituted &#x3b2;-amino nitriles in excellent yields and selectivities.

Process for the synthesis of N-Substituted &#x3b2;-amino nitriles through the ring opening of aziridines

The present invention comprises a simplified synthesis of (+)-diltiazem through IE-PdOsW wherein IE is ion-exchanger, catalyzed three-component coupling reaction and Fe-exchanged clay catalyzed ring opening of sulfite with 2-aminothiophenol followed by cyclization as key steps.

Process for preparing diltiazem using a heterogeneous trifunctional catalyst

The present invention relates to an economic and environmentally clean process for the preparation of the pyridinium salt of fluorotrioxo-chromate (VI), PFC, having the chemical formula CHNH[CrOF], by direct reaction of stoichiometric amounts of hydrofluoric acid, chromium trioxide and pyridine demonstrating approxomately 100% atom economy.

Process for preparing pyridinium fluorochromate (VI)

The present invention relates to the preparation of nanocrystalline zeolite beta by a modified aerogel protocol comprising four steps, namely, hydrolysis, nucleation, crystallization and supercritcal drying.

Process for the preparation of nanocrystalline zeolite beta

The present invention relates to a process for the separation of racemic mixtures comprising development of a denser molecular imprint on silica with a desired enantiomer by sol-gel protocol.

Process for the separation of racemic mixtures

The present invention relates to an improved process for the preparation of taxol side chain by synthesizing (2R,3S)-2,3-dihydroxy-3-phenylpropionate with greater than 99% enantioselectivity and devoid of osmium even in crude form in a single pot using a recyclable multifunctional catalysts, conversion of diol obtained without further crystallization into bromoacetate, reaction of bromoacetate with NaN in organic solvent followed by deacetylation with to obtain azido alcohol, benzoylation followed by hydrogenation of azido alcohol to obtain the (2R,3S)-(N-)-benzoyl-3-phenylisoserine methyl ester in 67% yield.

Process for preparing taxol side chain using heterogeneous trifunctional catalyst

A method for processing of hydrogen for the reductive acylation of nitro, azido and cyano arenes is disclosed. More particularly, improved process for the preparation of amides and anilides using C -C carboxylic acids as proton source/acylating agents employing Fe -montmorillonite as a catalyst is disclosed.

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Andhra Pradesh, India

Lakshmi Kantam Mannepalli