Technologies

Chemical Sciences

Title:

(A) cost effective preparation of safe brominating reagent having high atom efficiency (B) Processes for preparation of several commercially important bromo derivatives and pharmaceutical intermediates utilizing the reagent

Area:

Chemical Sciences

Focus Area:

Salt and Marine Chemicals

Patent:

US Patent No: 6,740,253

Developing Agency:

CSIR-Central Salt Marine Chemicals Research Institute (CSMCRI)

Email:

skannan@csmcri.res.in
Website Link :https://www.csmcri.res.in/home

Brief Description

Description :

The present invention relates to a non-hazardous brominating reagent from an aqueous alkaline bromine byproduct solution obtained from bromine recovery plant and containing 25 to 35% bromine dissolved in aqueous lime or sodium hydroxide containing alkali bromide and alkali bromate mixture having bromide to bromate stoichiometric ratio in the range of 5:1 to 5.1:1 or 2:1 to 2.1:1 and a pH ranging between 8-12 and also relates to a method for borminating aromatic compounds by using the above brominating agent

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