| abstract |
A method for synthesizing an amine E51 ** Formula ** comprising an acetylation-reduction of an oxime E41 ** Formula ** by reacting said oxime E41 with a carboxylic acid anhydride and hydrogen in the presence of a hydrogenation catalyst, in the that R1i is one of a C1-6 C (O) alkyl, - C (O) -, and --OC (O) - esterified moiety, wherein said C1-6 alkyl moiety is linear or branched, and said aryl moieties and C1-6 alkyl are optionally and independently substituted with at least one substituent of the halo group and linear or branched C1-6 alkyl; R2i 'is one of C1-10 alkyl, CH2aryl-, -S (O) 2aryl, and -S (O) 2 C1-6 alkyl, wherein said C1-10 alkyl is linear or branched, and said C1- alkyl moieties 10 and aryl are optionally substituted with at least one substituent of the halo and C1-6 alkyl group; and R2i is one of H and R2i '. |