The asymmetric domino Michael-SN2 reaction of various 1,3-dicarbonyl compounds to α-bromonitroalkenes is described for the first time, employing readily available cinchona-derived bifunctionalthioureas as organocatalysts. The novel transformations were highly regio-, chemo-, diastereo-, and enantioselective, which simultaneously gave the chiral tricyclic 2,3-dihydrofurans, bicyclic 2,3-dihydrofurans
Dauzonne, Daniel; Demerseman, Pierre, Journal of Heterocyclic Chemistry, 1990, vol. 27, # 6, p. 1581 - 1584
作者:Dauzonne, Daniel、Demerseman, Pierre
DOI:——
日期:——
Efficient and mild synthesis of functionalized 2,3-dihydrofuran derivatives via domino reaction in water
作者:Jian-Wu Xie、Ping Li、Ting Wang、Fei-Ting Zhou
DOI:10.1016/j.tetlet.2011.02.093
日期:2011.5
An efficient and mild method for the synthesis of functionalized tricyclic 2,3-dihydrofurans, bicyclic 2,3-dihydrofurans, and other tetrasubstituted 2,3-dihydrofurans by dominoreaction of 1,3-dicarbonyl compounds and α-bromonitroalkenes with a large substrate scope and excellent diastereoselectivity (only trans isomers) in moderate to excellent yield (up to 96%) has been reported.