Abstract: A process for synthesizing an ?-amino acid compound of formula HOOC—(CH2)r+2—CH2NH2, wherein 4?r?13 from a monounsaturated fatty nitrile compound of formula CH2?CH—(CH2)r—CN the process comprising: 1) a step of hydroformylation of the mono unsaturated fatty nitrile compound by reacting said nitrile with carbon monoxide and di hydrogen 5e-a5 to obtain a nitrile aldehyde compound of formula HOC—(CH2)r+2-CN, then 2) a step of oxidation, in the presence of dioxygen, of the nitrile aldehyde compound to obtain a corresponding nitrile acid compound of formula HOOC—(CH2)r+2-CN, and 3) a step of reduction of the nitrile acid compound to give an w-amino acid of formula HOOC—(CH2)r+2—CH2NH2.

Abstract: A method to synthesize a fatty nitrile/ester aldehyde comprising the following steps: 1) hydroformylation of a ?-unsaturated fatty nitrile/ester/acid substrate under particular conditions of partial pressure, temperature, reaction time, conversion rate of the ?-unsaturated fatty nitrile/ester/acid reactant, catalyst, [substrate]/[metal] molar ratio and [ligand]/[metal] molar ratio so as after the reaction to obtain: a hydroformylation product comprising at least one fatty nitrile/ester/acid aldehyde of formula: OHC—(CH2)r+2—R, and an isomerate comprising at least one fatty nitrile/ester/acid isomer with internal unsaturation in which at least 80% of the internal isomer(s) of the isomerate are formed of the ?-1 unsaturated isomer of formula CH3—CH?CH—(CH2)r?1—R; followed by: 2) separation and recovery of the fatty nitrile/ester/acid aldehyde and of the isomerate.

Abstract: A method for synthesizing a ?-amino acid compound having formula HOOC—R?—CH2NH2, where R is an alkyl radical including between 6 and 15 carbon atoms or an alkylene radical including between 6 and 15 carbon atoms and between 0 and 2 unsaturations. The method including the following steps: 1) hydroformylation of an unsaturated fatty nitrile selected from compounds having formula R1—CH?CH—[(CH2)q—CH?CH]m—(CH2)r—CN, said step consisting in reacting the nitrile with the carbon monoxide and dihydrogen such as to obtain at least one fatty nitrile aldehyde having formula HOC—R?—CN; 2) dioxygen oxidation, wherein the nitrile aldehyde obtained in step 1) is converted into fatty nitrile acid having formula HOOC—R?—CN; and 3) reduction, in which the nitrile acid obtained in step 2) is converted into co-amino acid having formula HOOC—R?—CH2NH2.