136879-36-2

Basic information

• Product Name: 7-chloro(1-oxoethyl)heptanoic acid ethyl ester
• CAS NO: 136879-36-2
• Molecular Weight: 234.723
• Mol File: 136879-36-2.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: 7-chloro(1-oxoethyl)heptanoic acid ethyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: 7-chloro(1-oxoethyl)heptanoic acid ethyl ester(136879-36-2)
• EPA Substance Registry System: 7-chloro(1-oxoethyl)heptanoic acid ethyl ester(136879-36-2)

Safety Data

• Hazardous Substances Data: 136879-36-2(Hazardous Substances Data)

Upstream product

• 78834-75-0 ethyl-7-Chloro-2-oxoheptanoate 
• 54512-75-3 1-bromo-5-chloropentane 
• 497-19-8 sodium carbonate 
• 141-97-9 ethyl acetoacetate 

Relevant articles and documents

Preparation method of 7-chlorin-(1-oxo ethyl) ethyl oenanthate

The invention provides a preparation method of 7-chlorin-(1-oxo ethyl) ethyl oenanthate. 1-bromine-5-chloropentane of a structural formula III and ethyl acetoacetate of a structural formula IV are adopted as starting materials, under the existence of a polar solvent, an acid binding agent and a phase transfer catalyst, normal pressure heating is performed till the polar solvent is boiling, a reaction is performed for 6-8 h, and 7-chlorin-(1-oxo ethyl) ethyl oenanthate of a structural formula V is obtained. The phase transfer catalyst is selected from one or more of tetrabutylammonium bromide, tetrabutyl ammonium chloride, benzyl trimethyl ammonium chloride, benzyl trimethyl ammonium bromide, 18-crown-6, dibenzo-18-crown-6, polyethylene glycol-400, benzyltrimethylammonium chloride-400 and polyethylene glycol-600, and preferentially polyethylene glycol-400. The molar ratio of the phase transfer catalyst to ethyl acetoacetate is 0.2-1.0:1.0, and preferentially 0.2-0.3:1.0. The preparation method is short in reaction time, high in product yield and good in purity.