There is disclosed a process for the production of dodecanedioic acid and 11-aminoundecanoic acid, comprising: (1) reacting castor oil with a primary or secondary amine to form a amide; (2) isomerizing the amide in the presence of a catalyst to form ketoamide; (3) reacting the ketoamide with hydroxylamine to form the oximeamide; (4) subjecting the oximeamide to Beckmann rearrangement to yield a mixture of two diamides; and (5) hydrolyzing the mixed diamides to produce dodecanedioic acid, 11-aminoundecanoic acid, hexylamine and heptanoic acid.

The present invention relates to the production of xylene derivatives from furfural and its derivatives. The invention describes new routes for converting furfural and its derivatives into xylene derivatives including novel intermediates.

The present invention relates to the production of xylene derivatives from furfural and its derivatives. The invention describes new routes for converting furfural and its derivatives into xylene derivatives including novel intermediates.

The present invention relates to a novel process for converting the unwanted S enantiomer form to its useful raceme with respect to a 4-aminoindane derivative and to novel intermediates of said process.

The present invention relates to a novel process for converting the unwanted S enantiomer form to its useful raceme with respect to a 4-aminoindane derivative and to novel intermediates of said process.

The invention relates to a synthesis method for at least one nitrogen compound belonging to the family of partly N-hydroxyethylated tertiary 1,6-hexanediamines with general formula (I) as follows: ##STR00001##
wherein radicals R.sub.1, R.sub.2, R.sub.3 are each selected indiscriminately among a methyl radical and a hydroxyethyl radical, and at least one radical among R.sub.1, R.sub.2, R.sub.3 is a methyl radical,
comprising at least a first reaction between a first halogen atom-free precursor compound and a second halogen atom-free precursor compound. The first precursor compound comprises a carbon skeleton consisting of a linear sequence of 6 carbon atoms with the 4 central carbon atoms bonded each to 2 hydrogen atoms and the carbon atoms in alpha and omega position not bonded to a halogen atom.

The invention relates to a synthesis method for at least one nitrogen compound belonging to the family of partly N-hydroxyethylated tertiary 1,6-hexanediamines with general formula (I) as follows: ##STR00001##
wherein radicals R.sub.1, R.sub.2, R.sub.3 are each selected indiscriminately among a methyl radical and a hydroxyethyl radical, and at least one radical among R.sub.1, R.sub.2, R.sub.3 is a methyl radical,
comprising at least a first reaction between a first halogen atom-free precursor compound and a second halogen atom-free precursor compound. The first precursor compound comprises a carbon skeleton consisting of a linear sequence of 6 carbon atoms with the 4 central carbon atoms bonded each to 2 hydrogen atoms and the carbon atoms in alpha and omega position not bonded to a halogen atom.

The invention relates to a synthesis method for at least one nitrogen compound belonging to the family of partly N-hydroxyethylated tertiary 1,6-hexanediamines with general formula (I) as follows: ##STR00001##
wherein radicals R.sub.1, R.sub.2, R.sub.3 are each selected indiscriminately among a methyl radical and a hydroxyethyl radical, and at least one radical among R.sub.1, R.sub.2, R.sub.3 is a methyl radical,
comprising at least a first reaction between a first halogen atom-free precursor compound and a second halogen atom-free precursor compound. The first precursor compound comprises a carbon skeleton consisting of a linear sequence of 6 carbon atoms with the 4 central carbon atoms bonded each to 2 hydrogen atoms and the carbon atoms in alpha and omega position not bonded to a halogen atom.

The present invention relates to a novel process for converting the unwanted S enantiomer form to its useful raceme with respect to a 4-aminoindane derivative.

The present invention relates to a novel process for converting the unwanted S enantiomer form to its useful raceme with respect to a 4-aminoindane derivative.