3034. Di-tert-butyl Malonate

Nomenclature

CAS number: 541-16-2
Propanedioic acid 1,3-bis(1,1-dimethylethyl) ester; propanedioic acid bis(1,1-dimethylethyl) ester; malonic acid di-tert-butyl ester.
C11H20O4; mol wt 216.27.
C 61.09%, H 9.32%, O 29.59%.

Description and references

Prepd from malonic acid, liq isobutylene and sulfuric acid: McCloskey et al., Org. Synth. 34, 26 (1954).

Chemical structure

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.

Use

In the prepn of ketones.