NEW ETHERS OF WHICH THE ORGANIC RESIDUES CONTAIN CHIRAL ATOMS,PROCESS FOR PREPARING THEM AND THEIR USE IN THE RESOLUTION OF ALCOHOLS,PHENOLS OR CERTAIN COMPOUNDS OF LACTONE SRUCTURE

摘要

Novel ethers of organic compounds containing chiral atoms of the formula I wherein A is a hydrocarbonated chain of 1 to 10 groups, the said chain containing one or more heteroatoms, one or more unsaturations, the assembly of the groups constituting the chain may represent a mono- or polycyclic system, including a system of the spiro or endo type, the chain A can contain one or more chiral atoms or the lactone moiety can present a chirality due to the dissymetric spatial configuration of the whole of the molecule and Z is selected from the group consisting of primary, secondary or tertiary alcohol moiety containing at least an asymetric carbon atom, a phenol moiety substituted comprising at least one asymetric carbon atom and an substituted alcohol or phenol moiety with a chirality due to the dissymetric spatial configuration of the whole of the molecule, with the proviso Z is not (R) or (S) alpha -cyano-3-phenoxy-benzyl when A is which are useful for the resolution of compounds of the formulae wherein A and Z have the above definitions and X is selected from the group consisting of hydrogen and alkyl of 1 to 4 carbon atoms.