γ-Substituted Butanolides from Cyclopropane Hemimalonates: An Expedient Synthesis of Natural (<i>R</i>)-Dodecan-4-olide
作者:Huck K. Grover、Michael R. Emmett、Michael A. Kerr
DOI:10.1021/ol402252u
日期:2013.9.20
hemimalonates has led to the facile synthesis of γ-substituted butanolides. Under microwave irradiation, cyclopropane hemimalonates undergo rapid conversion to butanolides in the presence of inorganic salts with an unprecedented retention of stereochemistry. This unique process has been applied to the total synthesis of the naturally occurring (R)-dodecan-4-olide.
对供体-受体环丙烷半棉酸酯的反应性的探索导致了γ-取代丁醇化物的简便合成。在微波辐射下,在无机盐的存在下,环丙烷半棉酸酯迅速转化为丁醇化物,并保持了前所未有的立体化学。该独特的方法已应用于天然存在的(R)-dodecan-4-olide的全合成。