Nov., 1930 RESEARCHES ON PYRIMIDINES. CXVII 4489 light yellow oil at 216-218' (5 mm.). This ester was more readily prepared from the phenol and benzoyl chloride by the pyridine method.

The only serious discrepancy between these Weights are corrected to vacuum. values and the International values is with cad-Thb Atomic Weight of Protactinium Ratio KiPaF:, g. ß , g.

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Using the general procedure of Cason,16 43.7 g. (0.23 mole) of 8-cyanooctanoyl chloride and dimethylcadmium [prepared from 0.5 mole of methylmagnesium bromide and 50 g. (0.27 mole) of cadmium chloride] were allowed to react and gave 27.0 g. of crude product, b.p. 130-135°( 2 mm.). Fractionation through a one meter Podbielniak column separated this crude material into 2.5 g. of 2,10-hendecandione, b.p. 132-134°( 4 mm.), and 23.5 g. (61%) of 9-ketodecanenitrile. After crystallization from methanol, the 2,10-hendecandione melted at 61.8-62.3°( reported18 m.p. 65°) and formed a disemicarbazone melting at 183-184°( reported16 m.p. 184°). The 9-ketodecanenitrile was refractionated and boiled at 161-162°( 9-10 mm.); »26d 1.4430. Anal.

No abstract