A tandem Finkelstein-rearrangement–elimination reaction: a straightforward synthetic route to allyl esters
作者:Jordi Eras、Marc Escribà、Gemma Villorbina、Mireia Oromí-Farrús、Mercè Balcells、Ramon Canela
DOI:10.1016/j.tet.2009.04.042
日期:2009.6
Finkelstein-rearrangement–elimination reaction of 2-chloro-1-(chloromethyl)ethyl esters induced by NaI. Sodium iodide can be used below equivalence using a reductive agent as sodium thiosulfate. High yields are obtained with most of the diverse esters studied. The method described avoids the use of allyl alcohol as a reagent. 2-Chloro-1-(chloromethyl)ethyl esters are prepared from glycerol, the main by-product
烯丙基酯可以通过NaI诱导的2-氯-1-(氯甲基)乙基酯的Finkelstein重排消除反应获得。碘化钠可以在还原当量以下使用还原剂作为硫代硫酸钠使用。使用大多数已研究的各种酯均可获得高收率。所描述的方法避免了使用烯丙醇作为试剂。2-氯-1-(氯甲基)乙酯是由甘油制成的,甘油是生物柴油工业的主要副产品。还证实了碘作为水解烯丙基酯的试剂的有效性。