Cornforth reagent → 3,3-Dimethoxy-2,2-dimethylpropanal

Participants

Reaction Steps

A suspension of 90 g (0.61mol) of the product of Example 2 and 250mg (0.66 mol) of pyridinium dichromate was stirred rapidly in 2 L of CH2Cl2 for 40 hours. The mixture was filtered through Celite, the filtrate passed through a column of Florisil and the solvent evaporated. Distillation of the residue through a 45 cm vigreux column furnished the title compound as a water-white oil, bp 65°-68°/10 mm, 31.4 g (35%). Calculated for C7H14O3 : C,57.51; H, 9.65. Found: C, 57.69; H, 9.85.

Provenance & Evidence