Patent EP-0114012-A1 (EP)
Inventor: TESSIER JEAN
IPC: A01N53/02
Filed: 1983-12-12
Abstract: 1. Claims for the contracting States : BE, CH, DE, GB, IT, LI, LU, NL, SE In all their isolated stereo-isomeric forms or in mixtures, the compounds with the genral formula (I) :  see diagramm : EP0114012,P19,F3  in which Y represents a hydrogen, fluorine, chlorine or bromine atom, Z represents an oxygen or sulphur atom, R1 represents _e_i_t_h_e_r a linear, branched or cyclic, saturated or unsaturated alkyl radical, containing from 1 to 8 carbon atoms, possibly substituted by one or more identical or different functional groups, _o_r an aryl group containing from 6 to 14 carbon atoms, possibly substituted by one or more identical or different functional groups, _o_r a heterocyclic radical possibly substituted by one or more identical or different functional groups, R2 represents a hydrogen atom, a fluorine, chlorine or bromine atom, an alkyl radical containing from 1 to 4 carbon atoms, a group -C -= N or a group -C -= CH, R3 , R4 , R5 , identical or different, represent a hydrogen atom, a fluorine, chlorine or bromine atom, a linear, branched or cyclic alkyl radical containing from 1 to 8 carbon atoms possibly substituted by one or more identical or different functional groups, an alkenyl radical including from 2 to 8 carbon atoms or an alkynyl radical including from 2 to 8 carbon atoms, or the radicals R3 , R4 and R5 form rings between themselves, two by two. 1. Claims for the contracting State : AT Process for the preparation, in all their isolated stereoisomeric forms or in mixtures, of the compounds with the general formula (I) :  see diagramm : EP0114012,P21,F1  in which Y represents a hydrogen, fluorine, chlorine or bromine atom, Z represents an oxygen or sulphur atom, R1 represents _e_i_t_h_e_r a linear, branched or cyclic, saturated or unsaturated alkyl radical, containing from 1 to 8 carbon atoms, possibly substituted by one or more identical or different functional groups, _o_r an aryl group containing from 6 to 14 carbon atoms, possibly substituted by one or more identical or different functional groups, _o_r a heterocyclic radical possibly substituted by one or more identical or different functional groups, R2 represents a hydrogen atom, a fluorine, chlorine or bromine atom, an alkyl radical containing from 1 to 4 carbon atoms, a group -C -= N or a group -C -= CH, R3 , R4 , R5 , identical or different, represent a hydrogen atom, a fluorine, chlorine or bromine atom, a linear, branched or cyclic alkyl radical containing from 1 to 8 carbon atoms possibly substituted by one or more identical or different functional groups, an alkenyl radical including from 2 to 8 carbon atoms or an alkynyl radical including from 2 to 8 carbon atoms, or the radicals R3 , R4 and R5 form rings between themselves, two by two, characterized in that an acid with the general formula (II)  see diagramm : EP0114012,P21,F4  in which Y, Z and R1 have the significance indicated previously, or a functional derivative of this acid, is made to act on an alcohol with the general formula (III) :  see diagramm : EP0114012,P21,F5  in which R2 , R3 , R4 and R5 have the significance indicated previously or on a functional derivative of this alcohol.