Direct Conversion of Activated 5-Hydroxymethylfurfural into δ-Lactone-Fused Cyclopentenones
作者:Rafael F. A. Gomes、Jaime A. S. Coelho、Carlos A. M. Afonso
DOI:10.1002/cssc.201802537
日期:2019.1.24
decomposition/esterification. Experimental and computational studies suggest a domino rearrangement–lactonization reaction involving BINOL‐catalyzed lactonization as the rate‐determining step. The novel lactone‐fused cyclopenten‐2‐ones, which bear a quaternary carbon and resemble a didemnenone natural product structure, are converted into several derivatives with potential interest for the fields of synthetic
生物质衍生原料(例如5-羟甲基糠醛平台)的估价是化学研究的一个非常活跃的领域。在这项研究中,由于糠醛的活化和梅德鲁姆酸的分解/酯化趋势,5-羟甲基糠醛被转化为环戊烯-2-酮。实验和计算研究表明,以BINOL催化的内酯化为速率确定步骤的多米诺骨牌重排-内酯化反应。新型的内酯融合的环戊二烯-2-酮具有季碳原子,类似于二甲烯酮的天然产物结构,已被转化为几种衍生物,在合成化学和药物化学领域具有潜在的兴趣。