Levulinic acid esters MeC(O)CH₂CH₂CO₂R (LAE) are emerging bio-based chemicals used as solvents, additives and plasticizers. In this work a variety of levulinates (R= n-butyl, n-hexyl, n-octyl, 2-ethylhexyl, geranyl, 2-ethoxyethyl, benzyl, 2-octyl, cyclohexyl, menthyl) is obtained from the solvent-free transesterification of methyl levulinate (ML) and esterification of levulinic acid (LA), catalyzed by a dimeric complex of iron(III). The results are competitive with the few related reports of literature mainly based on heterogeneous catalysis. This first systematic study based on a homogeneous catalytic system therefore represents a significant extension within the field of biomass valorization.

乙酰丙酸酯MeC（O）CH ₂ CH ₂ CO ₂ R（LAE）是新兴的生物基化学品，用作溶剂，添加剂和增塑剂。在这项工作中，从无溶剂酯交换反应中获得了多种乙酰丙酸酯（R =正丁基，正己基，正辛基，2-乙基己基，香叶基，2-乙氧基乙基，苄基，2-辛基，环己基，薄荷基）。乙酰丙酸甲酯（ML）的合成和乙酰丙酸（LA）的酯化反应;），由铁（III）的二聚配合物催化。该结果与主要基于多相催化的一些相关文献报道相比具有竞争力。因此，基于均相催化系统的第一个系统研究代表了生物质增值领域的重大扩展。