C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 253/30 (2006.01) C07C 255/37 (2006.01)
Patent
CA 2418040
Disclosed is a process for the preparation of a compound of the formula (1) wherein R1 is unsubstituted or substituted alkyl, comprising reacting a compound of the formula (2) with a compound of the formula (3) in the presence of an aqueous base and a phase transfer catalyst.
L'invention concerne un procédé servant à préparer un composé représenté par la formule (I) dans laquelle R¿1? représente alkyle substitué ou non substitué, ce qui consiste à effectuer la réaction d'un composé représenté par la formule (II) avec un composé représenté par la formule (III) en présence d'une base aqueuse et d'un catalyseur de transfert de phases.
Ekkundi Vadiraj S.
Mumbaikar Vilas N.
Paingankar Niranjan
Van Der Schaaf Paul Adriaan
Ciba Specialty Chemicals Holding Inc.
Goudreau Gage Dubuc
Sandoz Ag
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