Ferrocenylamines 2. Reductive methylation of secondary ferrocenylamines and ferrocenylaldimines: Synthesis, characterization of [(N-methyl-N-aryl)amino]methylferrocenes, 1-[(N-methyl-N-phenyl)amino]ethylferrocene and crystal structures of [(η5-C5H5)Fe(η5-C5H4CH2NHC6H4-Cl-4)] and [(η5-C5H5)Fe(η5-C5H4CH2N(CH3)-C6H4-OCH3-4)]
作者:Hong-Xing Wang、Ying-Jie Li、Rong Jin、Ji-Ru Niu、Hong-Fei Wu、Hui-Chao Zhou、Jian Xu、Ren-Qing Gao、Feng-Ying Geng
DOI:10.1016/j.jorganchem.2005.10.056
日期:2006.2
The reactions of ferrocenylaldimines (II) [(η5-C5H5)Fe(η5-C5H4CHNC6H4-R)] (R = 4-CH3O (a), 4-CH3 (b), H (c), 4-Cl (d), 3-Cl (e), 4-NO2 (f), 3-NO2 (g)) and ferrocenylketimine (I) [(η5-C5H5)Fe (η5-C5H4CH3CNC6H5)] with sodium borohydride in ethanol or lithium aluminum hydride in THF resulted in secondary ferrocenylamines 3, 4. Reductive methylation of 3 (or II) and 4 with aqueous formaldehyde and sodium
ferrocenylaldimines的(反应II)[(η 5 -C 5 H ^ 5)的Fe(η 5 -C 5 H ^ 4 CHNC 6 ħ 4 -R)](R = 4-CH 3 O(一),4-CH 3(b),H(ç),4-氯(d),3-CL(é),4-NO 2(˚F),3-NO 2(克))和ferrocenylketimine(我)[(η 5 -C 5 ħ 5)的Fe(η 5 -C5 ħ 4 CH 3 CNC 6 ħ 5)]在乙醇或氢化铝锂在THF中的硼氢化钠导致二次ferrocenylamines 3,4。的还原甲基化3(或II)和4与甲醛水溶液和氰基硼氢化钠所有给出了对应Ñ甲基化的叔ferrocenylamines 5 [(η 5 -C 5 H ^ 5)的Fe(η 5 -C 5 H ^ 4 CH 2 N(CH 3)6H 4 -R)](R =与上述相同)和2分别以良好的收率。所有这些三级ferrocenylamines