Process for preparing 5,6-dihydro-2-methyl-1,4-oxathiin derivati

Details Process for preparing 5,6-dihydro-2-methyl-1,4-oxathiin derivati Process for preparing 5,6-dihydro-2-methyl-1,4-oxathiin derivati

1978-09-12

1980-02-19

Randolph, John D.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

424276, 549 14, C07D32704

Patent

active

041894359

ABSTRACT:
5,6-Dihydro-2-methyl-1,4-oxathiin derivatives are prepared by chlorinolysis of an appropriate 1,3-oxathiolane derivative to generate alkene-sulfenic acid, followed by cyclization and loss of hydrogen chloride to form said product.

REFERENCES:
Chemical Abstracts, 8th Decennial Index (1967-1971), p. 21975S (1972).
Chemical Abstracts, 9th Decennial Index (1972-1976), p. 26309CS (1977).
Corbett et al., J. Chem. Soc., Perkin Trans. 1 1974, pp. 185-188 (as abstracted in Chem. Abst. vol. 80, No. 133320c (1974).
Djerassi et al., J. Am. Chem. Soc., vol. 75, pp. 3704-3708 (1953).

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