Atochem

Societe Nationale Des Poudres Et Explosifs

Adir Et Compagnie

Etat Francais Represente Par Le Delegue General Pour L'armement

Paul J Caubere

Yves Fort

Marie-Christine Berthe

Serge L Lecolier

Pierre Renard

Serge F Raynal

Sylvie L Boileau

Agnes Ortar

Gerard Adam

Catherine Caubere

Brigitte Jamart-Gregoire

Alain Pierre

Jean-Pierre G Senet

Bruno Pfeiffer

Ghanem Atassi

Gerald Guillaumet

Jean-Claude C Gautier

Jean-Guy Bizot-Espiard

Ivan Rodriguez

Jean-Claude Mondet

Dominique Manechez

Karine Vinter-Pasquier

Stephanie Blanchard

Herve Forconi

Catherine Kuehm-Caubere

Catherine Nguyen

Deng Min-Zhi

Gilberte N N'Debeka

Gilberte Ndebeka

A compound selected from those of formula (I): ##STR1## wherein: X represents N, C or CH,

5,10-dihydrodipyrido[2,3-b:2,3-e]pyrazin and

Thiocyanoalkyl esters of hydroxy-substituted (meth)acrylic acids are prepared by a process which includes the step of reacting an acrylic compound with an aldehyde of the formula CHOHR' wherein R' is a straight-chain or branched alkyl optionally substituted by hydroxyl, alkoxy or ester substitutents; straight-chain, branched or cyclic alkenyl; aryl radicals, optionally substituted by halogen, nitro or alkoxy, unsaturated heterocyclic radicals; alkylaryl; or arylalkyl radicals.

Method of preparing thiocyanoalkyl esters of hydroxy-substituted

A compound selected from those of formula (I): ##STR1## in which R.sub.1, R.sub.2, R.sub.3 and A are as defined in the description.

(Thia) cycloalkyl[B]indole compounds as anti-inflammatory agents

A process for the preparation of an acrylic or methacrylic compound of formula (I): ##STR1## wherein R is a hydrogen atom or methyl and n is an integer ranging from 2 to 20 inclusive, comprising reacting a halogeno-n-alkyl acrylate or methacrylate of the formula: ##STR2## in which n is as defined above and X is a halogen atom, with a thiocyanate salt in an organic solvent and in the presence of an effective phase-transferring amount of at least one phase-transfer agent.

Process for preparing thiocyanoalkyl esters of (meth)acrylic acid

Monomers of the formulae: ##STR1## and ##STR2## as well as polymers and copolymers thereof wherein n=2-20; R=H, CH.sub.3 or CHOHR' where R'=straight-chain or branched alkyl, optionally substituted by hydroxyl, alkoxy or ester substituents, straight-chain, branched or cyclic alkenyl, aryl, optionally substituted by halogenated, nitro or alkoxy substituents, unsaturated heterocycle, alkylaryl and arylalkyl, R=CH.sub.3 in formula (I) in the case of monomers and homopolymers wherein n=2 and in the case of monomers wherein n=4.

Process for the preparation of triazines

Process for the preparation of the acrylates chosen from those of formula ##STR1## those of formula ##STR2## and those of the formula ##STR3## useful in the production of new polymers and copolymers.

Acrylates containing an alcohol, aldehyde and/or ether functional group,

An unsaturated (meth) acrylic compound of formula: ##STR1## (X=O, S, NH, NR.sup.3 (R.sup.3 =C.sub.1-12 -alkyl) or O--(CH.sub.2).sub.n (where n=1-16 approximately); R.sup.2 =C.sub.2-20 straight-chain or branched alkyl, monocyclic or polycyclic cycloalkyl or heterocycloalkyl, or alkylaryl hydrocarbon chain, comprising an olefinic double bond in the chain, or at the end of the chain in the case of alkyl or alkylaryl, or an exocyclic or endocyclic olefinic double bond in the case of monocyclic or polycyclic cycloalkyl or heterocycloalkyl; and R.sup.1 =H or C.sub.1-5 -alkyl), is reacted at 10.degree.-60.degree. C. with at least one oxidising compound (hydrogen peroxide) in the presence of at least one catalyst (alkali metal molybdates and tungstates) and in the presence of at least one phase transfer agent and when R.sup.2 =polycyclic cycloalkyl or hetercycloalkyl, an organic peracid or hydrogen peroxide in the presence of at least one heteropolyacid. To open the epoxide function, the epoxide obtained is reacted with a compound chosen from strong inorganic acids, boron trifluoride etherate complexes, acid salts in the presence of the corresponding acid, halides of trialkylsilanes or trialkoxysilanes, and ketones in the presence of cationic resins.

Process for selective epoxidation of unsaturated (meth)acrylates, new

The invention relates to a compound selected from those of formula (I): ##STR1## in which R.sub.1, R.sub.2, R.sub.3 and A are as defined in the description, and medicinal product containing the same in order to treat a mammal afflicted with a peroxydation phenomenom.

(Thia)cycloalkyl[B]indoles

Process for the epoxidation of an unsaturated (meth)acrylic compound of formula: ##STR1## in which R.sub.1 is chosen from H and C.sub.1 -C.sub.5 -alkyl; R.sub.2 is chosen from H, alkyl and aryl; R.sub.3 is a straight-chain, branched or cyclic alkylene or oxyalkylene radical having from 1 to 12 carbon atoms, it being possible for one of the carbon atoms of R.sub.2, when the latter is an alkyl radical, to be linked to one of the carbon atoms of R.sub.3 to form a ring; and A is chosen from O, S, NH and NR.sub.4, R.sub.4 being a C.sub.1 -C.sub.12 -alkyl group; by the action of hydrogen peroxide on the said unsaturated (meth)acrylic compound, at a temperature of between 10.degree. C. and 50.degree. C., in the presence of at least one catalyst chosen from the alkali metal molybdates and the alkali metal pertungstates and in the presence of at least one phase transfer agent.

Process for selective epoxidation of unsaturated (meth)acrylic compounds

Monomers of the formulae: ##STR1## as well as polymers and copolymers thereof wherein n=2-20; R=H, CH.sub.3 or CHOHR' where R'=straight-chain or branched alkyl, optionally substituted by hydroxyl, alkoxy or ester substituents, straight-chain, branched or cyclic alkenyl, aryl, optionally substituted by halogenated, nitro or alkoxy substituents, unsaturated heterocycle, alkylaryl and arylalkyl, R=CH.sub.3 in formula (I) in the case of monomers and homopolymers wherein n=2 and in the case of monomers wherein n=4.

Triazines substituted with thioalkylmethacrylate groups

The invention concerns a process of preparation of the polyazido alcohols by reaction of a polysubstituted oxirane having in position .beta. a nucleofuge group with a metal nitride, characterized in that the reaction is performed in an aqueous medium. The oxirane formula is: ##STR1## in which X represents a nucleofuge substituent, R1 represents an atom of hydrogen, a lower alkyl group substituted or not by a halogen, an aryl group possibly substituted, R2 and R3 represent an atom of hydrogen, a lower alkyl radical possibly substituted, an aryl group possibly substituted, R4 represents an atom of hydrogen, a lower alkyl group possibly substituted, an aryl group possibly substituted by an alkoxy group. Application to the preparation of polyamino alcohols, ureas, polyazidothiols and binding compositions for propergols.

Process for preparing polyazido alcohols and polyamino alcohols and

(Meth)acrylic compounds carrying a thiocyanate group

Acrylates of the formula ##STR1## in which: R is a radical chosen from alkyl radicals containing from 1 to 12 carbon atoms, cycloalkyl radicals containing from 5 to 12 carbon atoms, and aryl, arylalkyl and alkylaryl radicals,

Acrylates, containing an alcohol, aldehyde and/or ether functional

An unsaturated (meth)acrylic compound of formula: ##STR1## (X.dbd.O, S, NH, NR.sup.3 (R.sup.3 =C.sub.1-12 -alkyl) or O--(CH.sub.2).sub.n (where n=1-16 approximately); R.sup.2 =C.sub.2-20 straight-chain or branched alkyl, monocyclic or polycyclic cycloalkyl or heterocycloalkyl, or alkylaryl hydrocarbon chain, comprising an olefinic double bond in the chain, or at the end of the chain in the case of alkyl or alkylaryl, or an exocyclic or endocyclic olefinic double bond in the case of monocyclic or polycyclic cycloalkyl or heterocycloalkyl; and R.sup.1 =H or C.sub.1-5 -alkyl), is reacted at 10.degree.-60.degree. C. with at least one oxidizing compound (hydrogen peroxide) in the presence of at least one catalyst (alkali metal molybdates and tungstates) and in the presence of at least one phase transfer agent and when R.sup.2 =polycyclic cycloalkyl or hetercycloalkyl, an organic peracid or hydrogen peroxide in the presence of at least one heteropolyacid. To open the epoxide function, the epoxide obtained is reacted with a compound chosen from strong inorganic acids, boron trifluoride etherate complexes, acid salts in the presence of the corresponding acid, halides of trialkylsilanes or trialkoxysilanes, and ketones in the presence of cationic resins.

Selective epoxidation of unsaturated (meth)acrylates, new functional

These acrylates are those of formulae: ##STR1## where R=C.sub.1 -C.sub.12 alkyl, C.sub.5 -C.sub.12 cycloalkyl, aryl, arylalkyl or alkylaryl; Y=C.sub.1 -C.sub.12 alkyl, C.sub.6 -C.sub.12 aryl, heterocyclic radical whose ring contains from 5 to 10 members and whose heteroatom is chosen from N, O and S, an alkylaryl in which the alkyl part contains from 1 to 4 carbon atoms, Y not being able to denote 1,4-phenylene when R denotes methyl; and Z=hydrocarbon radical containing at least 2 C forming with O and the 2 adjacent Cs a ring containing from 4 to 8 members. To prepare them, an acrylate of formula CH.sub.2 .dbd.CH--COOR is reacted with a dialdehyde OHC--Y--CHO in the presence of an effective quantity of at least one functionalisation catalyst. The invention also relates to the preparation of new polymers and copolymers from the said acrylates.

Growing community of inventors

Nancy, France

Paul J Caubere