亚
氨基正膦Ph 3 P NC 6 H 3 X-2-R-4(X = I,R = H(1a); X = Br,R = NO 2(1b); X = Br,R = Me(1c) )与
对甲苯基异氰酸酯反应,1a与CS 2反应得到碳二
亚胺ToN C NC 6 H 3 X-2-R-4(To = C 6 H 4 Me-4; X = I,R = H(2a); X = Br,R = NO 2(2b); X = Br,R = Me(2c))和异
硫氰酸盐S C NC分别为6 H 4 I-2(3)。在适当的
配体存在下,化合物2和3与Pd(dba)2([Pd 2(dba)3 ]·dba,dba =
二亚苄基丙酮)反应,得到邻
钯的芳基碳二
亚胺[Pd(C 6 H 3 N C NTo-2-R-5)XL 2 ](L = PPh 3,X = I,R = H(4a); L = PPh 3,X = Br,R = NO 2(4b),Me(4c)