1438276-61-9Relevant articles and documents
Construction of chiral multi-functionalized polyheterocyclic benzopyran derivatives by using an asymmetric organocatalytic domino reaction
Guo, Zhi-Wei,Li, Xin-Sheng,Zhu, Wei-Dong,Xie, Jian-Wu
, p. 6924 - 6932 (2013/03/29)
The asymmetric domino reaction of various α,α-dicyano olefins to 3-nitro-2H-chromenes was studied employing readily available cinchona-derived bifunctional thioureas as organocatalysts. These new transformations were highly regio-, chemo-, diastereo-, and