| 摘要 |
1283315 Valeric acid derivatives ATLANTIC RICHFIELD CO 27 May 1970 [3 July 1969] 25576/70 Heading C2C An ester of 5-cyano-2-acetoximuiovaleric acid or 5-cyano-2-oximinovaleric acid is prepared by reacting 2,6-dioximinocyclohexanone or the monosodium salt thereof with acetic anhydride and a saturated aliphatic primary or secodary monohydric alcohol having 1 to 5 carbon atoms in the absence of a catalyst. Two or more moles of the alcohol per mole of hexanone may be used, the excess being used as solvent, and the reaction is preferably carried out at a temperature of from 60‹ C. to the reflux temperature of the solution when the hexanone itself is used, although temperatures of from 25‹ to 60‹ C. may be employed when the monosodium salt is used as the starting material.
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