Yong Zheng, Weibin Song, Yefu Zhu, Bole Wei and Lijiang Xuan
Org. Biomol. Chem., 2018,16, 2402-2405
DOI:
10.1039/C8OB00207J,
Communication
A palladium-catalyzed intramolecular C(sp2)–H amination of phenylalanine moieties in dipeptides is described. By this protocol, a series of indoline-2-carboxylate-containing dipeptides were synthesized from dipeptides. The N-protected amino acid moiety within the peptide is used as an intrinsic bidentate directing group. This intramolecular C–H amination reaction provides an appealing strategy for the post-synthetic modification of peptides.