175698-87-0Relevant academic research and scientific papers
An η1-Aldehyde Complex and the Role of Hydrogen Bonding in Its Conversion to an η1-Imine Complex
Yao, Wenbin,Crabtree, Robert H.
, p. 3007 - 3011 (2008/10/09)
2-Pyridinecarboxaldehyde displaces Me2CO from [IrH2(Me2CO)2(PPh3) 2]+ to give a chelating N,O-bound product containing an η1-O-bound aldehyde group. This is converted to the η1-N-bound imine complex with a variety of substituted amines. When the amine contains a suitably positioned -OH group, intramolecular O-H?H-Ir dihydrogen bonds are detected in the products. This hydrogen bonding influences the relative rates of product formation from 2- and 4-aminophenol (rate ratio 6:1), where only the 2-isomer is capable of forming an intramolecular H-bond.
