the Rh center imparted by the rigid PTN framework. The complexes were tested as catalysts for (biphasic) olefin hydroformylation and regioselective CC bond reduction under transfer hydrogenation conditions, together with acetophenone hydrogenation. DFT calculations on simplified models helped to assess the bonding properties within the complexes and to determine the amount of cage strain that accompanies
笼状开环
配体PTN(R)(
PTN = 7-R-
磷-3-甲基-1,3,5-三
氮杂双环[3.3.1]
壬烷; R = Me,Ph),其是通过
水-可溶性膦
PTA(
PTA = 1,3,5-triaza-7-phosphaadamantanetan)用于合成中性[RhCl(cod)(
PTN(R)](10)和[RhI(CO)
PTN(Me)}} ](12)和阳离子[Rh(cod)
PTN(R)}] [BAr F 4 ](11)
铑(I)配合物,在溶液和固态下均得到了全面表征(cod = 1,5 -
环辛二烯; BAr F 4 = B [3,5-(CF 3)2 C 6 H 3 ] 4)。鉴定了两种与
金属的配位模式,κ1 - P(为10)和κ 2 - P,Ñ(11,12)。对于κ 1 - P协调下,游离的N-供体部位掌握在临近于刚性
PTN框架赋予的
铑中心。测试了该配合物作为催化剂在转移氢化条件下与
苯乙酮氢化一起