SCHEDULED MAINTENANCE
The acetone-initiated photochemical alkylation of protected glycylglycine, glycylalanine, and glycyl-leucine dipeptide methyl esters with isobutene, but-1-ene, and toluene is described. The reactions lead to the preferential conversion of the glycine residue to leucine, norleucine, or phenylalanine, respectively, in yields of up to 60%. A free-radical chain mechanism is proposed for these reactions.
D. Elad and J. Sperling, J. Chem. Soc. C, 1969, 1579 DOI: 10.1039/J39690001579
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