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US 10,093,607 B2Granted
Selective hydrolysis and alcoholysis of chlorinated benzenes
AssigneeBASF SE
InventorsEric George Klauber, Michael Rack, Thomas Zierke, Nicole Holub, David Cortes, Gerald Schmelebeck, Junmin Ji
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Abstract
The present invention relates to a process for providing a compound of formula (I): wherein R is hydrogen or R′, wherein R′ is —(C1-C4)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′, wherein X is an alkali metal, and R′ is defined as above.
Claims22
A process for providing a compound of formula (I):
- wherein R is hydrogen or R′, wherein R′ is (C1-C4)alkyl, and Hal is chloro,
- 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′, wherein X is an alkali metal, and R′ is defined as above,
- wherein the alkali metal alkoxide of formula XOR′ is added to the reaction mixture in the form of an alcoholic solution in an alcohol of formula HOR′ having a concentration of 25 wt.-% to 67 wt.-%, based on the weight of the total weight of the alcohol HOR′ and the alkali metal alkoxide of the formula XOR′;
- and
- wherein the step of reacting the compound of formula (II) with an alkali metal alkoxide of formula XOR′ is carried out at a temperature of at least 150° C.
5 more elements
Dependencies are inferred from the claim text.