Novel ester containing dithioacetal group, production thereof and stabilization of organic substance by utilizing said ester

Abstract

Abstract Esters containing a dithioacetal group of general formula: <IMAGE> in which R1 and R2, which are identical or different, denote aryl, arylthio or alkylthioaryl radicals in which the aryl group may be a phenyl radical substituted or otherwise by hydroxyls and/or by linear or branched aliphatic hydrocarbon radicals containing up to 6 carbon atoms; R3 and R4, which are identical or different, denote hydrogen atoms, linear or branched aliphatic hydrocarbon radicals containing up to 6 carbon atoms, cycloaliphatic radicals, phenyl radicals substituted or otherwise by linear or branched aliphatic hydrocarbon residues containing up to 6 carbon atoms; it being also possible for R3 and R4 to form together with the methylene radical and optionally a heteroatom a cyclic or heterocyclic radical containing from 5 to 12 carbon atoms; R5, R6, R7 and R8, which are identical or different, denote hydrogen atoms, linear or branched aliphatic hydrocarbon radicals containing up to 6 carbon atoms, cycloaliphatic radicals, phenyl radicals; n, m, p and q are integers, it being possible for n and m to be between 1 and 12, it being possible for p and q to be between 1 and 10. They are obtained by reaction of a phenol alcohol, a mercapto acid and an aldehyde or a ketone.

Inventors

• 👤 Pierre Tozzolino
• 👤 ピエール・トツオリーノ
• 👤 Dominique Ranceze
• 👤 ドミニク・ランセズ

Bibliographic Details