NaNO2–Ceric ammonium nitrate mediated conversion of acrylic esters and Baylis–Hillman derived acrylic esters into corresponding β-nitro acrylic esters
作者:K Jayakanthan、K.P Madhusudanan、Yashwant D Vankar
DOI:10.1016/j.tet.2003.11.013
日期:2004.1
A variety of acrylic esters, including those derived from Baylis–Hillman reactions, react with NaNO2–ceric ammonium nitrate to form the corresponding β-nitro alcohols 2 and 5 whose dehydration, via their mesylates, leads to β-nitro acrylic esters, in good to excellent yields. Further, β-nitro acrylic esters containing a mesylate group 6, obtained from the Baylis–Hillman products, react with NaN3 to
各种丙烯酸酯,包括那些由Baylis-Hillman反应衍生的丙烯酸酯,与NaNO 2-铈硝酸铵反应生成相应的β-硝基醇2和5,它们通过甲磺酸酯的脱水作用,生成β-硝基丙烯酸酯。好到极好的产量。此外,从Baylis-Hillman产品获得的含有甲磺酸酯基团6的β-硝基丙烯酸酯与NaN 3反应,以极好的收率形成2-氰基-3-取代的丙烯酸酯10。