Relative Reactivities of Positions on Biphenyl in the Generation of

generation of reactive species by ionizing radiation and the relative reactivities of the same positions on biphenyl in its substitution by the reacti...
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W M . HGTCHINSON, P. S. HUDSON,AND R . C . Doss

3358

made u p to be slightly supersaturated a t room temperature, was cooled to O " , and before crystallization could occur, 4.2 g . of finely powdered 3-S-(o-tnethylatni1iop~ien)-l)-iminopentanone-% \vas rapidly added, An immediate deep red-orange coloration follo\r.ed, and i n a few minutes a salt crystallized out, which was filtered riff after the addition of a n equal volume of dry benzene;

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F R O M THE ICESEARCH r)IVISlOl'

Vol, 85

vield, 5 . 8 g. Attenipts to purify this orange-colored product by &stallization or subliniation resulted in decornposition. The material was washed with dry benzene, dried for !?I lir. a t 106" (0.1 m m . ) and analyzed. Ancil. Calcd. for C3fiH.'ZSfiOl2: C , 51.1c?I:H , 3.63; S , 13.77, Found: C , 5 ( i , 5 2 ; H . :