Novel and Efficient Catalytic Route for the Syntheses of Tetrahydrofurans Useful in the Preparation of Neonicotinoid Insecticides
作者:Srinagesh Kumar Potluri、A. Raghu Ramulu、M. Pardhasaradhi
DOI:10.1081/scc-200051709
日期:2005.4.1
synthesis of 3‐(hydroxymethyl)tetrahydrofuran useful in the preparation of a neonicotinoid insecticide viz. MTI‐446 is described. Principles of green chemistry such as hydroformylation, single‐pot transketalization, and intramolecular cyclocondensation through catalytic reactions were adopted. The process reported here is superior to the existing methods with respect to lower salt formation and higher atom
摘要 新烟碱类是广泛使用的有机磷杀虫剂 (OP) 的良好替代品,并因其对脊椎动物的低毒性而获得了极大的重视。一种合成 3-(羟甲基)四氢呋喃的环境友好途径,可用于制备新烟碱类杀虫剂,即 描述了 MTI-446。采用了加氢甲酰化、单锅转缩酮化和催化反应的分子内环缩合等绿色化学原理。这里报道的方法在较低的成盐率和较高的原子经济性方面优于现有方法,并且它被扩展到了一种新型中间体 3,3-双(羟甲基)四氢呋喃的制备,被认为可用于制备新型杀虫剂。