Electronic influence of iron tetracarbonyl complexation on unsaturated N,N-diacyliminium ion precursors
Abstract
Complexation with the Fe(CO)4 group increases the electron density in the N-substituent of N-crotonoyl- and N-cinnamoyl-5-alkoxy-2-pyrrolidinones, making substitution reactions via formal N,N diacyliminium ions possible.