Preparation of acylcyclohexadionethiocarboxylic S-esters

Details Preparation of acylcyclohexadionethiocarboxylic S-esters Preparation of acylcyclohexadionethiocarboxylic S-esters

1990-10-03

1992-07-14

Lee, Mary C.

Organic compounds -- part of the class 532-570 series

Organic compounds

Esters having the thiocarboxylate group, -cx-, wherein the...

558257, 558252, 558256, 562 26, C07C32700

Patent

active

051304538

ABSTRACT:
An acylcyclohexadionethiocarboxylic S-ester of the fomrula ##STR1## where R.sup.1 and R.sup.2 are substituted or unsubstituted alkyl, alkenyl, alkynyl, cycloalkyl, benzyl or phenyl, and R.sup.2 is additionally hydrogen, are prepared by reacting an acylcyclohexadione II ##STR2## with hydroxylamine or hydroxylamine-O-sulfonic acid in an inert solvent at from 0.degree. to 150.degree. C., to give an acylcyclohexadione compound III ##STR3## and then reacting the compound III with a mercaptan IV

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Houben-Weyl, Methoden der organischen Chemie, vol. 9, 753-760 (1955).
Bull. Chem. Soc. Jpn. 53, (1980), 1982.
J. Am. Chem. Soc., 93 (1971) 1419.
Angew. Chem. 89 (1977) 251.
Tetrahedron Lett. 1973, 1595.
Houben-Weyl Bd. E5*, p. 876 f, (1985).

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