Me. Attardi et M. Taddei, The Barton radical decarboxylation on solid phase. A versatile synthesis of peptides containing modified amino acids, TETRAHEDR L, 42(20), 2001, pp. 3519-3522
Barton esters were prepared starting from different carboxylic acids loaded
on a Wang resin. Light induced fragmentation occurred giving a radical tha
t reacted with CBrCl3 to give the corresponding bromides, whereas conjugate
addition to electron-poor alkenes proved to be less synthetically useful.
The bromides so formed were further functionalised on the resin with differ
ent nucleophiles. (C) 2001 Elsevier Science Ltd. All rights reserved.