omega -Aminododecanoic acid esters having the formula H2N-(CH2)11COOR3 wherein R3 represents a saturated C1-4 alkyl group are prepared by reacting an omega -nitrocarboxylic acid ester having the formula O2N-(CH2)3-R1-(CH2)2-R2-(CH2)2COOR3 wherein R1 and R2 are both -CH2-CH2- or -CH=CH-, or R1 is -CH2CH2- when R2 is -CH=CH- or R1 is -CH=CH- when R2 is -CH2CH2-, and R3 represents a saturated C1-4 alkyl group, with hydrogen in a hydrocarbon solvent in the presence of a palladium, platinum or nickel hydrogenation catalyst.
申请公布号
DE2413178(C3)
申请公布日期
1980.09.25
申请号
DE19742413178
申请日期
1974.03.19
申请人
TOYO SODA MANUFACTURING CO., LTD., SHIN-NANYO, YAMAGUCHI (JAPAN)
