US 4,062,878 AGranted

Preparation of novel keto-esters

AssigneeSociete Anonyme Roure Bertrand Dupont

InventorsPierre Pesnelle, Paul Jose Teisseire

Life of this patent

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Abstract

Novel keto-esters which are represented by the general formula ##STR1## wherein R.sup.1 represents methyl or benzyl, and X represents hydroxy, trityloxy, tosyloxy or halogen, and process for the preparation of said keto-esters.

Claims6

Dependent claims

Compounds of the general formula ##STR21## wherein R.sup.1 represents methyl or benzyl, and X represents hydroxy, trityloxy, tosyloxy or halogen.

Dependencies are inferred from the claim text.

Facts

Application: 05/723,720Filed 16 Sep 1976 · division
Priority: CH 2885/7328 Feb 1973
Granted: 13 Dec 1977
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

C07C 43/215
Having an ether-oxygen atom bound to a carbon atom of a six-membered aromatic ring: having unsaturation outside the six-membered aromatic rings
C07C 43/196
Having an ether-oxygen atom bound to a carbon atom of a ring other than a six-membered aromatic ring: containing hydroxy or O-metal groups
C07C 43/23
Having an ether-oxygen atom bound to a carbon atom of a six-membered aromatic ring: containing hydroxy or O-metal groups
C07C
Acyclic or carbocyclic compounds

Family

Serial444,488Parent of this division · filed 21 Feb 1974
US 4,062,878 AThis patent

From the US filing history. Foreign family members aren’t listed.

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