Bromine Compounds Limited

Bertha Croitoru

Ariel A Ewenson

Asher Shushan

Michael R Peled

Yaniv Hirschsohn

David Itzhak

Abram Becker

Ella Rapaport

Dov Beruben

Miriam Freiberg Bergstein

David Beneish

Yelena Epshtein Assor

Yaakov Rachmilevitch

Dan Kopel

Naim Faza

Poly (pentabromobenzyl acrylate) having weight average molecular weight (Mw) in the range from 4,000 to 120,000 and polydispersity index of less than 10 as determined by high temperature gel permeation chromatography, wherein the glass transition temperature of the poly (pentabromobenzyl acrylate) is not more than 150 C.&#xb0;, the poly (pentabromobenzyl acrylate) includes chains which are terminated by an end group derived from a chain length regulator, wherein the end group is a thiol group &#x2014;SR, and wherein R, is a linear or branched alkyl group composed of not less than 8 carbon atom.

Poly (pentabromobenzyl acrylate) having specific properties

Processes for the electrophilic substitution of aromatic compounds, such as alkylation, with a desired substituent are disclosed. The processes include contacting the aromatic compound, a precursor of the desired substituent and an aqueous reagent containing zinc halide at elevated temperatures such as above 50&deg; C.

Process for electrophilic aromatic substitution

A process for the preparation of octyl p-methoxy cinnamate is provided. The procedure generally concerns reacting p-bromo anisole with acrylic acid; and esterifying the resulting product with 2-ethyl hexanol. Preferred reactants and conditions are provided.

Process for the preparation of octyl p-methoxy cinnamate

Biaryl derivatives are produced by coupling an aryl halide in an aqueous alkaline solution in the presence of a palladium catalyst, using formic hydrazide as the reducing agent.

Method of production of biaryl derivatives

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Beer-Sheva, Israel

Bertha Croitoru