Council of Scientific and Industrial Research

Chinta Reddy Venkat Reddy

Boyapati Manoranjan Choudary

Mannepalli Lakshmi Kantam

Balagam Bharathi

Kondapuram Vijaya Raghavan

Billakanti Veda Prakash

Lanka Venkata Sivaji

Aduri Ravindra

Katuri Jeevaratnam

Thumma Someshwar

The present invention relates to design and preparation of LDH-diisopropylamide through simple exchange process for the first time and its use in catalytic amounts for preparing aldols/&agr;,&bgr;-unsaturated nitriles/&agr;,&bgr;-unsaturated esters/transesterified products/&bgr;-nitroalkanols/Michael adducts and epoxide, resulting in higher yields.

Preparation of new layered double hydroxides exchanged with diisopropylamide for C-C bond forming reactions

The present invention provides a process for the preparation of amine oxide by reacting a tertiary or a secondary amine with hydrogen peroxide as an oxidant in the presence of a recyclable heterogeneous catalyst comprising a layered double hydroxide exchanged with an anion in the presence of an additive selected from the group consisting of benzonitrile, propionitrile, isobutyronitrile, benzamide and isobutyraride.

Process for the preparation of amine oxides

The invention relates to a process for the preparation of high quality tetrabromobisphenol-A by reacting bisphenol-A with bromine and hydrogen peroxide as an oxidant in the presence of a heterogeneous catalyst in a biphase system consisting of water and water immiscible organic solvents.

Process for the preparation of tetrabromobisphenol-A

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Andhra Pradesh, India

Chinta Reddy Venkat Reddy