Novel resolution process
AssigneeRoussel Uclaf
InventorsJean Tessier, Jean-Pierre Demoute
Life of this patent
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Abstract
Compounds of the formula ##STR1## wherein A is a hydrocarbon chain containing 1 to 16 groups, the said chain containing at least one heteroatom, at least one unsaturation, the assembly of the group constituting the chain may be a mono- or polycyclic system including a spiro or endosystem and the assembly of chain A and the carbon atoms attached thereto can contain at least one chiral atom or the hemiacetal moiety thereto which can present a chirality due to the dissymetric spatial configuration of the molecule and Y is selected from the group consisting of hydrogen, alkyl of 1 to 18 carbon atoms optionally substituted, --CY.sub.3 ' and the .beta.,.gamma. bond together with Y can be part of A and Y' is bromine or chlorine.
Claims4
A hemiacetal in all possible isomeric forms of the formula ##STR19## wherein A, represents an optionally substituted hydrocarbon chain selected from the group consisting of ##STR20## wherein Y.sub.1 and Y.sub.2 are individually selected from the group consisting of hydrogen, fluorine, chlorine, bromine and alkyl of 1 to 6 carbon atoms, or Y.sub.1 and Y.sub.2 together with the carbon to which they are attached form a carbon homocycle of 3 to 7 carbon atoms;
- and Z is selected from the group consisting of hydrogen, chlorine, bromine and iodine;
- Y is selected from the group consisting of alkyl of 1 to 18 carbon atoms optionally substituted with a halogen;
- and
- --CY.sub.3 ' and a .beta.,.gamma. bond together with Y may be included in A and Y' is bromine or chlorine.
A hemiacetal in all possible isomeric forms of the formula ##STR21## wherein A, of which .beta.,.gamma. bond can be part, represents an optionally substituted hydrocarbon chain selected from the group consisting of ##STR22## wherein Y.sub.1 and Y.sub.2 are individually selected from the group consisting of hydrogen, fluorine, chlorine, bromine and alkyl of 1 to 6 carbon atoms, or Y.sub.1 and Y.sub.2 together with the carbon to which they are attached form a carbon homocycle of 3 to 7 carbon atoms and Z is selected from the group consisting of hydrogen, chlorine, bromine and iodine.
Dependencies are inferred from the claim text.