Preparation of gamma-pyrones

Details Preparation of gamma-pyrones Preparation of gamma-pyrones

1976-09-09

1978-04-04

Chan, Nicky

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2603458R, 260594, C07D30922

Patent

active

040827178

ABSTRACT:
2-METHYL-3-HYDROXY-4H-pyran-4-one is prepared by contacting 1(2-furyl)-1-ethanol in aqueous solution with two equivalents of a halogen oxidant at room temperature and then heating until the hydrolysis of the formed 4-halo-dihydropyran intermediate is substantially complete. Other valuable related gamma-pyrones are prepared in analogous manner from appropriate alcohols.

REFERENCES:
shono et al., Tetrahedron Letters, No. 17, pp. 1363-1364, (1976).

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