405109-32-2Relevant academic research and scientific papers
MCM-41@Schiff base-Co(OAc)2 as an efficient catalyst for the synthesis of pyran derivatives
Pan, Shiwei,Li, Puhui,Xu, Guihua,Guo, Jingchang,Ke, Libin,Xie, Canquan,Zhang, Zhoucai,Hui, Yonghai
, p. 1353 - 1371 (2019/11/20)
Heterogeneous ordered mesoporous silica materials catalyst, MCM-41@Schiff base-Co(AcO)2, reveals high catalytic performance within the synthesis of pyran derivatives using the multicomponent reaction of aldehydes, malononitrile and 2-naphthol (
Task specific onium salt as soluble support in multicomponent synthesis of 4-aryl-2-amino-3-ethoxycarbonyl-naphthopyrans
Lu, Cuifen,Zhang, Li,Yang, Guichun,Chen, Zuxing
experimental part, p. 2469 - 2473 (2011/10/02)
In this paper was presented an application of task specific onium salt as soluble support in multicomponent synthesis of 2-amino-3-ethoxycarbonyl- naphthopyrans. The starting task-specific onium salt was functionalized in good yield with chloroethyl alcohol, followed by three steps containing esterification, three components reaction and cleavage from onium salt to afford naphthopyrans in 60% -88% overall yields. All of the products were characterized by IR, 1H NMR, 13C NMR and MS techniques. In this paper was presented an application of task specific onium salt as soluble support in multicomponent synthesis of 2-amino-3-ethoxycarbonyl-naphthopyrans. The starting task-specific onium salt was functionalized in good yield with chloroethyl alcohol, followed by three steps containing esterification, three components reaction and cleavage from onium salt to afford naphthopyrans in 60%-88% overall yields. All of the products were characterized by IR, 1H NMR, 13C NMR and MS techniques.
