CuI/l-proline-catalyzed selective one-step mono-acylation of styrenes and stilbenes
摘要:
Vicinal di-oxygenation of styrene-type olefins was achieved with cheaper, less toxic Cul in the presence of L-proline as ligand and NalO(4) as the oxidant. This approach provides a straightforward and efficient access to mono-acylated diols from both styrene and stilbene derivatives with good to excellent yields and diastereoselectivity. (C) 2010 Elsevier Ltd. All rights reserved.