The photochemical reaction of ( η 5 -C 5 H 5 )Fe(CO) 2 I with ( l )- and ( d )-tryptophan methyl ester in the presence of diisopropylamine in benzene leads to complexation of the ( η 5 -C 5 H 5 )Fe(CO) 2 moiety to the deprotonated indole nitrogen. This reaction takes place without detectable ( α . The amino group of the complex formed was acylated by treatment with p-chlorobenzoic acid and Fmoc-( l )-leucine in the presence of dicyclohexylcarbodiimide.
