936024-95-2Relevant academic research and scientific papers
Synthesis and characterization of 1,1′-bis[(N-methyl-N-phenyl)aminomethyl(ethyl)]ferrocenes. Crystal structures of [Fe{(η5-C5H4)-C(C6H 5){double bond, long}N-CH2C6H4CH3-4} 2] and 2[Fe{(η5-C5H4)-CH2N (CH3)...
Wang, Hong-Xing,Gao, Ren-Qing,Yang, Xiao-Li,Wan, Li,Wu, Hong-Fei,Geng, Feng-Ying,Jin, Rong
, p. 1037 - 1044 (2008/10/09)
Title full: Synthesis and characterization of 1,1′-bis[(N-methyl-N-phenyl)aminomethyl(ethyl)]ferrocenes. Crystal structures of [Fe{(η5-C5H4)-C(C6H 5){double bond, long}N-CH2C6H4CH3-4} 2] and 2[Fe{(η5-C5H4)-CH2N (CH3)-C6H4OCH3-4}2] · 1/4H2O. Direct or catalytic condensation of diacylferrocenes (acyl = formyl, acetyl, and benzoyl) and anilines or benzylamines with titanium tetrachloride as a catalyst resulted in the corresponding diimines 1-3, respectively. Reduction of these imines with sodium borohydride or lithium aluminum hydride/aluminum chloride in THF yielded 1,1′-bis[(N-phenyl)aminomethyl(ethyl)]ferrocenes (4, 5) and 1,1′-bis[(N-benzyl)aminobenzyl]ferrocenes (6), respectively. Reductive methylation of 4-6 with aqueous formaldehyde, cyanoborohydride and acetic acid only afforded 1,1′-bis[(N-methyl-N-phenyl)aminomethyl(ethyl)]ferrocenes (7, 8). 1,1′-Bis[{(N-methyl-N-benzyl)amino}benzyl]ferrocenes (9) were not obtained, probably due to their debenzylation under the acidic conditions. The molecular structures of 3g and 7a were determined by single crystal X-ray analysis.
