Process for the isomerization of cyclopropyl ketones to 2,3-dihy

Details Process for the isomerization of cyclopropyl ketones to 2,3-dihy Process for the isomerization of cyclopropyl ketones to 2,3-dihy

1983-06-13

1984-12-11

Raymond, Richard L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549479, 549486, 549487, C07D30728, C07D30730

Patent

active

044879466

ABSTRACT:
A process is provided wherein cyclopropyl ketones are readily isomerized to 2,3-dihydrofurans. The process involves the thermal rearrangement of 1,1-disubstituted-2-alkylcyclopropanes or 1,1-disubstituted-2-alkenylcyclopropanes, wherein one of the substituents in the 1-position is an acyl group, to 2,4,5-trisubstituted-2,3-dihydrofurans employing an onium compound as the catalyst.

REFERENCES:
patent: 4252739 (1981-02-01), Fayter et al.

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