May, 1046 NEW COMPOUNDS 913 of the addition product with acetic acid, as described in the refereiice quoted, protluccd emulsions. Decomposition with dilute sulfuric acid5 was entirely satisfactory. Diethyl (3-Methylmalate.-Using a proportion of 1 g. of platiiiuin oxide catalyst per mole of ethyE ethoxalylpropionate and an initial hydrogen pressure of from 3 to 4 atmospheres, the reduction of from 0.1 to 0.5 mole of thc ester was complete within from ...
