Montedison S.p.a.

Stefano Campolmi

Vittorio Carletti

Giorgio Bottaccio

Giorgio Bornengo

Marcello Marchi

Alessandro Malacrida

Maurizio A Beretta

Maria G Felicioli

Roberto Santi

Luigi Cassar

Giuseppe Cigna

Enzo Alneri

Enrico Dalcanale

Renato Ugo

Fernando Montanari

Paolo Catarsi

Fabrizio Vivaldini

Maria C Mussatto

Process for the preparation of (2,2)-paracyclophane or derivatives thereof by the Hofmann elimination of p-methylbenzyl-trimethylammonium hydroxide or derivatives thereof, in an aqueous solution of an alkali metal hydroxide, wherein said elimination is carried out in the presence of a compound of the formula (I):

Process for the preparation of (2,2)-paracyclophane and derivatives

Process for the preparation of (2,2)-paracyclophane or derivatives thereof by the Hofmann elimination of p-methylbenzyltrimethylammonium hydroxide or derivatives thereof, in an aqueous solution of an alkali metal hydroxide, wherein said elimination is carried out in the presence of a dialkylether of mono- and poly-ethylene glycols having the formula:

There is disclosed a process for the preparation of thiocarbamates having the following general formula: ##STR1## wherein: R represents alkyl C.sub.1 -C.sub.4 optionally substituted with one or more halogen atoms, alkenyl C.sub.2 -C.sub.4 optionally substituted with one or more halogen atoms, phenyl optionally substituted with one or more halogen atoms, benzyl optionally substituted with one or more halogen atoms on the phenyl ring;

Process for the preparation of thiocarbamates

Carboxylic acids having the general formula:

Process for oxidizing aldehydes to carboxylic acids

Self-extinguishing expandable polystyrene particles containing an expanding agent, a self-extinguishing organic halogen-containing compound and a 2,4,6-triamino-1,3,5-triazine derivative.

Self-extinguishing expandable polystyrene particles having an improved

The mono-methallyl ether of pyrocatechin of formula (I): ##STR1## is prepared by reacting pyrocatechin of formula (II): ##STR2## with a methallyl halide of formula (III): ##STR3## in a homogeneous dissolving medium, e.g., alcohols, aliphatic polyalcohols and monoethers thereof, or water, in the presence of an organic or inorganic base. The mono-methallyl ether of pyrocatechin is used as an intermediate for organic syntheses and, in particular for synthesizing the product of formula (IV); ##STR4## which is marketed under the tradename 'Carbofuran' and is a compound which is the active principle in soil insecticides of different overall compositions which are available on the market.

Process for preparing the mono-methallyl ether of pyrocatechin

A process is disclosed for preparing N-methylcarbamate of methylthioacetaldoxime, characterized in that an aqueous suspension of methylthioacetaldoxime is additioned, in one step only, with gaseous phosgene and aqueous methylamine in the presence of an inorganic alkaline base substantially at room temperature and pressure. The product obtained, known commercially as 'Methomyl', is an important active principle in the field of insecticides.

Process for preparing N-methylcarbamate of methylthioacetaldoxime

There is disclosed an improved process for selectively preparing 2-(6'-methoxy-2'-naphthyl)-propionic acid in the active antipode (+) form by reacting 2-acetyl-6-methoxynaphthalene, in an organic solvent, with a system consisting of

Process for preparing 2-(6'-methoxy-2'-naphthyl)-propionic acid

Alpha-formyl acids are prepared by carboxylation of aldehydes in the presence of unsubstituted or substituted alkaline phenates, and of aprotic organic solvents.

Process for preparing alpha-formyl acids

A process is disclosed for the preparation of anhydrous solutions of alkaline phenates in organic solvents, comprising the steps:

Growing community of inventors

Novara, Italy

Stefano Campolmi