Title: Di-tert-butyl Malonate
CAS Registry Number: 541-16-2
CAS Name: Propanedioic acid bis(1,1-dimethylethyl) ester
Additional Names: malonic acid di-tert-butyl ester
Molecular Formula: C11H20O4
Molecular Weight: 216.27
Percent Composition: C 61.09%, H 9.32%, O 29.59%
Line Formula: (CH3)3COOCCH2COOC(CH3)3
Literature References: Prepd from malonic acid, liq isobutylene and sulfuric acid: McCloskey et al., Org. Synth. 34, 26 (1954).
Properties: Liquid. mp -6.1 to -5.9°. bp31 112-115°; bp10 93°; bp1 65-67°. nD20 1.4184; nD24.2 1.4161; nD25 1.4158-1.4161.
Melting point: mp -6.1 to -5.9°
Boiling point: bp31 112-115°; bp10 93°; bp1 65-67°
Index of refraction: nD20 1.4184; nD24.2 1.4161; nD25 1.4158-1.4161
Use: In the prepn of ketones.