The (η5-cyclopentadienyl)Fe(CO)2 complex of the (l)- and (d)-tryptophan methyl ester N-anion: synthesis and acylation of the amino function

Add time:09/05/2019    Source:sciencedirect.com

The photochemical reaction of (η5-C5H5)Fe(CO)2I with (l)- and (d)-tryptophan methyl ester in the presence of diisopropylamine in benzene leads to complexation of the (η5-C5H5)Fe(CO)2 moiety to the deprotonated indole nitrogen. This reaction takes place without detectable (< 1%) racemization at Cα. The amino group of the complex formed was acylated by treatment with p-chlorobenzoic acid and Fmoc-(l)-leucine in the presence of dicyclohexylcarbodiimide.

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