ESTERS OF DITHIOCARBAMIC ACIDS 11632. It has been shown that benzanisoin when reduced under suitable conditions produces not only ^-methoxybenzyl phenyl ketone but also its isomer, benzyl p-methoxyphenyl ketone. Only the anti benzyl oxime was obtained from ^-methoxybenzyl phenyl ketone.3. By means of the Grignard reaction the structure of benzyl £-methoxyphenyl ketone has been determined by two independent methods.4. A number of derivatives of benzanisoin has been obtained. A new carbinol was prepared and characterized.5. The reliability of the method of Friedel and Crafts in structural work of this nature is brought into question.

The same products were obtained in another experiment in which 0.5 cc. of piperidine was used as a catalyst.Azobenzene and p-Thiocresol.-A solution of 18.2 g. (0.1 mole) of azobenzene and 37.2 g. (0.3 mole) of £-thiocresol in 200 cc. of xylene was refluxed for twenty-five hours. As in all other experiments, a trap2 was used to exclude air. The products obtained were 9.5 g. of aniline, 0.1 g. of benzidine (from a sulfuric acid treatment of the hydrazobenzene present), 5.5 g. of £-thiocresol and 90% of the di-p-tolyl disulfide which should have formed on the basis of the reduction products isolated.Miscellaneous.•-After heating 0.075 mole of benzophenone-anil with four molecular equivalents of ^-thiocresylmagnesium iodide in an ether-xylene solution at 103-107°f or twelve hours, 96% of the anil was recovered. In addition, 0.3 g. of aniline was isolated. Another experiment under corresponding conditions yielded a 95% recovery of the anil, and traces of aniline and di-p-tolyl disulfide.Subsequent to refluxing three equivalents of ^-thiocresylmagnesium iodide with benzalaniline in an ether-xylene solution at 114-124°for forty hours, 96% of the pthiocresol was recovered.The recovery of ^-thiocresol in an experiment in which four molecular equivalents of it were refluxed with benzophenone in xylene for twenty-six hours was 97.8%. A like recovery of ^-thiocresol was had in an experiment wherein eight equivalents were heated with nitrobenzene in xylene for twenty-six hours.

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