A Versatile Route to Functionalized Dilactones as Monomers for the Synthesis of Poly(α-hydroxy) Acids
作者:Mark Leemhuis、Jan Hein van Steenis、Michelle J. van Uxem、Cornelus F. van Nostrum、Wim E. Hennink
DOI:10.1002/ejoc.200300181
日期:2003.9
A synthetic pathway to functionalized six-membered dilactones structurally analogous to lactide is described. Through the use of orthogonal protecting groups, the synthesis of functionalized dilactones was performed in a straightforward way by cyanuric chloride-mediated cyclization of the corresponding linear α-hydroxy acid dimers. The synthesis of three different dilactones − methylglycolide, ben
描述了在结构上类似于丙交酯的功能化六元双内酯的合成途径。通过使用正交保护基团,通过氰尿酰氯介导的相应线性α-羟基酸二聚体的环化,以直接的方式合成官能化双内酯。三种不同的双内酯 - 甲基乙交酯、苄氧基甲基乙交酯和 2-苄氧基甲基-5-甲基乙交酯 - 通过相同的程序合成证明了该路线的多功能性。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)