Process for making alkyl cyclopentenones

Details Process for making alkyl cyclopentenones Process for making alkyl cyclopentenones

1980-09-29

1982-05-11

Trousof, Natalie

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

Organic compounds

Oxygen containing

568838, 560122, 560121, 549525, 549546, C07C 4552

Patent

active

043295088

ABSTRACT:
A process for making mixed 2- and 3-C.sub.1 -C.sub.10 alkyl-2-cyclopenten-1-ones from a corresponding alkylcyclopentadiene by epoxidation to the oxiranes, hydrolysis to the diols, dehydration of the diols and rearrangement of the resulting mixed alkylcyclopentenones. The resulting product can be used to make methylcyclopentenolone, a synthetic maple flavor.

REFERENCES:
patent: 3775492 (1973-11-01), Kierstead et al.
patent: 3911026 (1975-10-01), Kierstead et al.
patent: 4048242 (1977-09-01), Lauer et al.
Organic Synthesis, Col. vol. 5, pp. 326-328, 414-418, (1980).
Piancatelli et al., Tetrahedren, vol. 35(1), pp. 135-138, (1979).
Synthesis, 1980, pp. 118-119.
House, "Modern Synthetic Reactions", pp. 298-299, (1972), Benjamin Inc.
Norman, Principles of Organic Synthesis", Chapman & Hall, pp. 568-569, (1968).

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