C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 17/357 (2006.01) C07B 39/00 (2006.01) C07C 17/14 (2006.01) C07C 22/04 (2006.01) C07C 67/287 (2006.01) C07C 253/30 (2006.01) C07C 255/50 (2006.01)
Patent
CA 2372903
The invention relates to a method, which can be applied in industrial scale, for carrying out the side chain bromination of 4-methyl biphenyl derivatives substituted at the 2'-position with N-bromoimides or N- bromoamides in order to form 4-bromomethyl biphenyl derivatives which are substituted at the 2'-position and which are of general formula (I), wherein R can have the meaning cited in the description and in the claims.
L'invention concerne un procédé applicable à l'échelle industrielle, de bromation de chaîne latérale de dérivés de 4-méthylbiphényle substitué en position 2' avec des N-brome-imides ou amides, en dérivés de 4-bromométhylbiphényle substitués en position 2' de la formule générale (I) dans laquelle R peut présenter la signification mentionnée dans la description et dans les revendications.
Boehringer Ingelheim Pharma Gmbh & Co. Kg
Boehringer Ingelheim Pharma Kg
Fetherstonhaugh & Co.
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