A method of synthesising an amino acid from an unsaturated fatty compound I that includes at least the following steps: cross-metathesis with a short unsaturated compound II, one of compounds I or II comprising a nitrile function and the other of these compounds II or I an ester function, so as to obtain and recover at least one monounsaturated nitrile ester NEU; hydrolysis of the NEU in unsaturated acid nitrile NAU; hydrogenation of the NAU to saturated amino acid AA; and then purification of the AA, if applicable, in particular by crystallisation. Also, a polymer obtained by polymerisation using the amino acid synthesised according to the method.

A PET imaging agent is made, by at first, washing out fluoride ions (F-18) adhered on an ion exchange resin to a reaction vessel with potassium carbonate/Kryptofix 2.2.2 in acetonitrile-water. After processing the first azeotropic distillation with helium while water is removed, the temperature is cooled down. Then, acetonitrile is added to the reaction vessel to be heated up. After processing the second azeotropic distillation with helium while water is removed, the temperature is cooled down and excess water is extracted. A precursor is then added to the reaction vessel to be heated up for processing a fluorination reaction. The reaction mixture obtained after the fluorination reaction is cooled down to be flown through a solid-phase extraction column with waste drained into a waste tank. Then, ethanol is used to wash out a product, i.e. [F-18]FEONM, adsorbed by the column, to be collected in a collection vial.

A PET imaging agent is made, by at first, washing out fluoride ions (F-18) adhered on an ion exchange resin to a reaction vessel with potassium carbonate/Kryptofix 2.2.2 in acetonitrile-water. After processing the first azeotropic distillation with helium while water is removed, the temperature is cooled down. Then, acetonitrile is added to the reaction vessel to be heated up. After processing the second azeotropic distillation with helium while water is removed, the temperature is cooled down and excess water is extracted. A precursor is then added to the reaction vessel to be heated up for processing a fluorination reaction. The reaction mixture obtained after the fluorination reaction is cooled down to be flown through a solid-phase extraction column with waste drained into a waste tank. Then, ethanol is used to wash out a product, i.e. [F-18]FEONM, adsorbed by the column, to be collected in a collection vial.

Provided is a method for preparing an enamide compound, which includes reacting an organic azide compound having α-hydrogen and an anhydride by addition of a ruthenium complex catalyst in the presence of an ionic liquid, and a ruthenium complex catalyst used herein.

Provided is a method for preparing an enamide compound, which includes reacting an organic azide compound having α-hydrogen and an anhydride by addition of a ruthenium complex catalyst in the presence of an ionic liquid, and a ruthenium complex catalyst used herein.

Provided is a method for preparing an enamide compound, which includes reacting an organic azide compound having α-hydrogen and an anhydride by addition of a ruthenium complex catalyst in the presence of an ionic liquid, and a ruthenium complex catalyst used herein.

The invention relates to a novel class of (S)-3′-substituted-abscisic acid derivatives and (±)-3′-substituted-abscisic acid derivatives, and methods of synthesizing the derivatives.

The invention relates to a novel class of (S)-3′-substituted-abscisic acid derivatives and (±)-3′-substituted-abscisic acid derivatives, and methods of synthesizing the derivatives.

A process for the continuous preparation of adiponitrile by hydrocyanation of 3-pentenenitrile is described, wherein a) 3-pentenenitrile is hydrocyanated to give a reaction output comprising adiponitrile, b) in a work-up 1, a mixture comprising cis-2-methyl-2-butenenitrile and cis-2-pentenenitrile is separated off as overhead product from the reaction output from the reactor R1 in a first distillation apparatus, c) the mixture comprising cis-2-methyl-2-butenenitrile and cis-2-pentenenitrile from step b) is continuously isomerized in the presence of aluminum oxide as catalyst in a reactor R2 to give a product mixture comprising 3-pentenenitrile, d) cis-2-methyl-2-butenenitrile is separated off as overhead product from the reaction output from the reactor R2 in a distillation apparatus in a work-up 2 and discharged.

A process for the continuous preparation of adiponitrile by hydrocyanation of 3-pentenenitrile is described, wherein a) 3-pentenenitrile is hydrocyanated to give a reaction output comprising adiponitrile, b) in a work-up 1, a mixture comprising cis-2-methyl-2-butenenitrile and cis-2-pentenenitrile is separated off as overhead product from the reaction output from the reactor R1 in a first distillation apparatus, c) the mixture comprising cis-2-methyl-2-butenenitrile and cis-2-pentenenitrile from step b) is continuously isomerized in the presence of aluminum oxide as catalyst in a reactor R2 to give a product mixture comprising 3-pentenenitrile, d) cis-2-methyl-2-butenenitrile is separated off as overhead product from the reaction output from the reactor R2 in a distillation apparatus in a work-up 2 and discharged.