Process for the preparation of acylals

Details Process for the preparation of acylals Process for the preparation of acylals

1991-03-18

1993-07-27

Bond, Robert T.

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

Organic compounds

Carboxylic acid esters

560107, 560104, 560106, 560112, 560227, 560231, 560254, 560261, 560265, 560266, 564201, 564208, 564503, 568 56, 568 57, C07C 69003, C07C 69017, C07C 6962

Patent

active

052312216

ABSTRACT:
Compounds of the formula ##STR1## can advantageously be prepared by reacting compounds the formula II ##STR2## in which the substituents R.sup.1 -R.sup.4 have the meanings given, with the anhydride of the formula III ##STR3## in the presence of dimethyl sulfoxide and the acid corresponding to the anhydride of the formula III.

REFERENCES:
patent: 3165532 (1965-01-01), Farrissey, Jr.
Chemical Abstracts, vol. III, No. 7, Aug. 14, 1989. O. Antonsen et al., Synthesis of sulfinylmethyl ethers and conversion of these into limlomethyl and acyloxymethyl ethers. 111:57186e.
Chung K. Chu et al. "Chemistry and Antiviral Activities of Acyclonucleosides", J. Heterocyclic Chem., 23 260-319 (1986).
J. W. Farren et al., Choroethers II, J. Am. Chem. Soc., 47 2419-2423, (1925).
E. Levas, Comptes Rendus Hebdomaires des Seances de l'Academie des Sciences, Paris, 228, 1443-1444 (1949).

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