heated in chlorobenzene, 3c and 3d rearrange (kobs = 3.9 × 10−5 s−1, 3c, 72°C; 6.3 × 10−5 s−1, 3d, 66°C) to the bridging bis(alkene) complexes [(η5-C5H5)Re(NO)(PPh3(H2CCH(CH2) n-4HCCH2)-(PPh3)(NO)Re(η5-C5H5)]2+2PF6− (5c,d2+ 2PF6−, 90–97%). No cycloalkene complexes derived from ReCHR/ReCHR coupling are detected. Complexes 5c2+ 2BF4− and 5d2+ 2BF4− are independently prepared by reactions of (η5-
锂的反应+ [(η 5 -C 5 H ^ 5)的Re(NO)(PPH 3)] -和TFO(CH 2 Ñ光学传递函数(0.5当量;一,Ñ = 3; b,Ñ = 4; C ^,ñ = 5; d,ñ = 8)得到桥接双(烷基)络合物(η 5 -C 5 H ^ 5)的Re(NO)(PPH 3(CH 2)ñ(PPH 3)(NO)的Re(η 5 -C 5小时5)(7a-d,80-89%)为构型非对映异构体(meso,dl)的50-75:50-25混合物。的反应7而Ph 3 Ç + PF 6 -(2当量)得到桥接的双(亚烷基)配合物[(η 5 -C 5 H ^ 5)的Re(NO)(PPH 3(= CH(CH 2)ñ - 2 HC =)(PPH 3)(NO)的Re(η 5 -C 5 H ^ 5)] 2+ 2PF 6 - (图3a-d 。,76-93%)当
氯苯加热,3C和三维重排(ķ
OBS = 3.9×10