C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
260/356.2, 260/4
C07C 53/00 (2006.01) C07C 29/10 (2006.01) C07C 29/143 (2006.01) C07C 29/17 (2006.01) C07C 29/42 (2006.01) C07C 29/62 (2006.01) C07C 43/12 (2006.01) C07C 45/00 (2006.01) C07C 45/63 (2006.01) C07C 51/60 (2006.01) C07C 405/00 (2006.01) C07D 303/38 (2006.01) C07D 307/935 (2006.01) C07D 309/12 (2006.01) C07D 493/04 (2006.01) C07F 1/00 (2006.01) C07F 5/06 (2006.01) C07F 7/18 (2006.01) C07F 9/54 (2006.01)
Patent
CA 1049022
ABSTRACT OF THE DISCLOSURE Novel 4-hydroxy-cyclopentenone derivatives of the general formula Image wherein p is from 3 to 5 and J is hydrogen, tetrahydropyranyl or tri- lower alkylsilyl, are prostaglandin intermediates and are prepared by reacting the corresponding free carboxylic acid derivative of 3,4-epoxy- cyclopentanone with a dilute aqueous base and when necessary converting the product into its 4-tetrahydropyranyloxycyclopentenone tetrahydro- pyranyl ester or 4-tn-lower-alkylsilyloxycyclopentenone tri-lower alkyl- silyl ester.
177024
Bernady Karel F.
Floyd Middleton B. (jr.)
Poletto John F.
Schaub Robert E.
Weiss Martin J.
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