Patent ID: 8822716
Filing Date: 2014-09-02
Classification: C07C

Abstract:
1. A method for preparing 7-halo-2-oxoheptylate represented by Formula I, wherein X is halogen, and R is C1-C4 hydrocarbyl; and the method comprising the steps as follows: A. performing an addition reaction, in which a cyanide is used to convert 6-halohexanal to a 7-halo-α-hydroxylheptonitrile; B. performing a hydrolysis reaction, in which 7-halo-α-hydroxylheptonitrile is converted to 7-halo-α-hydroxyl-heptylic acid; C. performing an esterification reaction, in which 7-halo-α-hydroxylheptylic acid is converted to 7-halo-α-hydroxylheptylate; and D. performing an oxidation reaction, in which 7-halo-α-hydroxylheptylate is converted to 7-halo-2-oxoheptylate.