A concise and versatile syntheses of 11-16-membered macrolides and 13-15-membered macrolactams have been achieved using a Tsuji-Trost type reaction. This approach is composed of intramolecular cyclization employing ethyl carbonate with carboxylic acids and catalytic amount of Pd(PPh3)4 to form carbon-heteroatom covalent bonds with no use of stoichiometric reagents.
利用辻-特罗斯特(Tsuji-Trost)型反应实现了 11-16 元大环内酯和 13-15 元大环内酯的简易和多功能合成。这种方法是利用
碳酸乙酯与
羧酸以及催化量的 Pd(PPh3)4 进行分子内环化,形成碳-叔原子共价键,无需使用
化学计量试剂。