Process for producing 3-oxocyclopentenes

Details Process for producing 3-oxocyclopentenes Process for producing 3-oxocyclopentenes

1980-12-05

1982-10-26

Reamer, James H.

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

Organic compounds

Oxygen containing

568361, 568379, C07C 4547, C07C 49573

Patent

active

043563260

ABSTRACT:
A process for producing 3-oxocyclopentenes which comprises treating a furan-carbinol of the formula: ##STR1## wherein R.sub.1 is an alkyl group having not more than 6 carbon atoms, an alkenyl group having not more than 6 carbon atoms, an alkynyl group having not more than 6 carbon atoms or a group of the formula: ##STR2## in which R.sub.2 is a hydrogen atom, a methyl group or a halogen atom in an aqueous medium in the presence or absence of a catalyst at a pH of 3 to 6.5 to give the corresponding 3-oxocyclopentene of the formula: ##STR3## wherein R.sub.1 is as defined above.

REFERENCES:
patent: 3628970 (1971-12-01), Stephens et al.
patent: 3947519 (1976-03-01), Matsui et al.
patent: 4107181 (1978-08-01), Evans
Piancatelli et al., Tet. Let., vol. 1976, pp. 3555-3558, (1976).
Piancatelli et al., Tet. Let. vol. 1977, pp. 1131-1134, (1977).
Piancatelli et al., Tetrahedron, vol. 34, pp. 2275-2278, (1978).
Scettri et al., Tetrahedron, vol. 35, pp. 135-138, (1979).
Mamdopur et al., Chem. Abst., vol. 92, #197,966y, (1980).

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