... Select a Journal or Book ... NiBr 2 (DME), 2-(PPh 2 )C 3 H 3 N (56), 28 and 1-Me-2-(PPh 2 )-4-(t-Bu)C 3 HN 2 (5) were purchased from Aldrich Chemical Co ... sept, J H - H = 7 Hz 2H, CHMe 2 ), 7.07−7.21 (m, 3H, C 6 H 3 ). 8: 1 H NMR (CDCl 3 , δ) 2.21 (s, 6H, Me), 6.67 (t, J H - H ...