Basf Se Corporation

Gerald Schmelebeck

Michael Rack

Thomas Zierke

Nicole Holub

Eric George Klauber

David Cortes

Junmin Ji

Sebastian Wloch

Stefan Dudenhoeffer

The present invention relates to a process for providing a compound of formula (I): wherein R is hydrogen or R', wherein R&#x2032; is &#x2014;(C-C)alkyl, and Hal is a halogen, the process comprising the step of:reacting a compound of formula (II) wherein Hal is defined as above,with an alkali metal alkoxide of the formula XOR&#x2032;, wherein X is an alkali metal, and R&#x2032; is defined as above.

Selective hydrolysis and alcoholysis of chlorinated benzenes

The present invention relates to a process for providing dihalogen substituted salicylic acid derivatives of formula (II): 

Process for providing dihalogen substituted salicylic acid derivatives

The present invention relates to a process for providing a compound of formula (IV): wherein Rand Rare each independently C-Calkyl, and Hal is independently Cl or Br, the process comprising the steps of: (i) reacting a compound of formula (II) wherein Rand Hal is defined as above, to obtain a compound of formula (III) wherein Rand Hal is defined as above, and (ii) reacting the compound of formula (III) to obtain the compound of formula (IV).

Process for producing 2,5-dihalophenolethers

A process for purifying 2,5-dichlorophenol, the process comprising the steps of distillation and subsequent crystallization.

Process for purifying 2,5-dichlorophenol

The present invention relates to a process for providing a compound of formula (I): wherein Hal is a halogen, the process comprising the step of: reacting a compound of formula (II) wherein Hal is defined as above, with an alkali metal sulfite of the formula XSOand an alkali metal hydroxide of the formula YOH, wherein X and Y are independently selected from an alkali metal.

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Buna, TX, United States of America

Gerald Schmelebeck