Title:  tert-Butyl Chloroacetate 
CAS Registry Number:  107-59-5 
CAS Name:  Chloroacetic acid 1,1-dimethyl ester 
Additional Names:  t-butyl chloroacetate;  chloroacetic acid tert-butyl ester 
Molecular Formula:  C6H11ClO2 
Molecular Weight:  150.60 
Percent Composition:  C 47.85%, H 7.36%, Cl 23.54%, O 21.25% 
Line Formula:  ClCH2COOC(CH3)3 
Literature References:  Prepd by reacting monochloroacetic acid and isobutylene in dioxane in the presence of sulfuric acid:  Johnson et al., J. Am. Chem. Soc. 75, 4995 (1953); from tert-butyl alcohol, chloroacetyl chloride and dimethylaniline:  Baker, Org. Synth. 24, 21 (1944). 
Properties:  Liquid, bp 155° (dec); bp11 48-49°; bp16-17 56-57°.  nD25 1.4204-1.4210; nD20 1.4259-1.4260.  Hydrolyzes to tert-butyl alcohol and chloroacetic acid. 
Boiling point:  bp 155° (dec); bp11 48-49°; bp16-17 56-57° 
Index of refraction:  nD25 1.4204-1.4210; nD20 1.4259-1.4260 
Use:  In the glycidic ester condensation.   |