XI, R= p-NOLCsHsCO XI1 (1024 a colorless oil, was also nitrogen free. The structure of the symmetric 0, O-diacetate X is supported by the nmr spectrum which showed a pair of triplets at 1.60 and 4.17 ppm (J= 7.5 cps) totaling eight protons in the characteristic arrangement-0- CH2-CH2-. The symmetric diacetate of 3-methyl-3-ethyl-l, 5-amylene glycol (X), on saponification with alcoholic potash, gave the diol IX, which was converted into the ...
