Disclosed is a method for producing a mono-cross-coupled aromatic compound (3-1) having one less leaving group than an aromatic compound (1) having at least two leaving groups, the method comprising: preparing the aromatic compound (1) having at least two leaving groups; preparing a compound (2) capable of undergoing a cross-coupling reaction selected from an aromatic boronic acid (2-1), an aromatic amino compound (2-2), a diboronic acid ester (2-3), an aromatic compound (2-4) having a hydroxyl group and an aromatic compound (2-5) having a thiol group; and performing a cross-coupling reaction of the aromatic compound (1) having at least two leaving groups with the compound (2) in the presence of a palladium catalyst and a base, in the absence of a solvent.

A novel promotor which contains an aniline derivative is introduced. By using the promotor alone, the time and temperature of the curing reaction of the vinyl ester resin can be controlled by the unique steric effect and electronic properties of the aniline derivative. A method for preparing the above promotor is also introduced.

A novel promotor which contains an aniline derivative is introduced. By using the promotor alone, the time and temperature of the curing reaction of the vinyl ester resin can be controlled by the unique steric effect and electronic properties of the aniline derivative. A method for preparing the above promotor is also introduced.

The invention relates to a process for preparing a semi-aromatic polyamide from diamine and dicarboxylic acid, comprising steps of •(i) dosing a liquid diamine to an agitated powder comprising an aromatic dicarboxylic acid thereby forming a powder comprising a diamine/dicarboxylic acid salt (DD-salt), and •(ii) solid-state polymerizing the DD-salt to obtain the polyamide.

The invention relates to a process for preparing a semi-aromatic polyamide from diamine and dicarboxylic acid, comprising steps of •(i) dosing a liquid diamine to an agitated powder comprising an aromatic dicarboxylic acid thereby forming a powder comprising a diamine/dicarboxylic acid salt (DD-salt), and •(ii) solid-state polymerizing the DD-salt to obtain the polyamide.

The invention relates to a process for preparing a semi-aromatic polyamide from diamine and dicarboxylic acid, comprising steps of •(i) dosing a liquid diamine to an agitated powder comprising an aromatic dicarboxylic acid thereby forming a powder comprising a diamine/dicarboxylic acid salt (DD-salt), and •(ii) solid-state polymerizing the DD-salt to obtain the polyamide.

The present invention relates to a process for preparing trientine dihydrochloride as an active pharmaceutical ingredient (API). The present invention relates to a process for the preparation of trientine dihydrochloride with a pharmaceutical grade of purity. The invention also relates to novel intermediates used in the preparation of trientine dihydrochloride.

The present invention relates to a process for preparing trientine dihydrochloride as an active pharmaceutical ingredient (API). The present invention relates to a process for the preparation of trientine dihydrochloride with a pharmaceutical grade of purity. The invention also relates to novel intermediates used in the preparation of trientine dihydrochloride.

The present invention relates to a process for preparing trientine dihydrochloride as an active pharmaceutical ingredient (API). The present invention relates to a process for the preparation of trientine dihydrochloride with a pharmaceutical grade of purity. The invention also relates to novel intermediates used in the preparation of trientine dihydrochloride.

A composition includes a perfluorinated propenylamine represented by the following general formula (1):

Each occurrence of R.sub.f1 and R.sub.f2 is: (i) independently a linear or branched perfluoroalkyl group having 1-8 carbon atoms and optionally comprises one or more catenated heteroatoms; or (ii) bonded together to form a ring structure having 4-8 carbon atoms and that optionally comprises one or more catenated heteroatoms.

At least 60 wt. % of the perfluorinated propenylamine is in the form of the E isomer, based on the total weight of the perfluorinated propenylamine in the composition.

##STR00001##