... Ketimines. V. Alkyl 1,l-Diphenylethyl Ketimines BY PL PICKARD AND EF ENGLES RECEIVED DECEMBER 15, 1952 Ketimines have been prepared by the action of 2,2- diphenylpropanenitrile on one aryl and six alkyl Grignard reagents. The ... Phvsical data. derivatives and analyses of (1) P. L. Pickard, et al., THIS JOURNAL, 72, 876 (1950). (2) Zbid., 72, 5017 (1950); 73, 42 (1950); 74, 4607 (1952). (3) Ibid., 73, 864 (1951). Page 2. ...