30432-63-4Relevant articles and documents
Selectivity in the N- and/or C-Alkylation of Schiff Bases Catalyzed by Crown Ether
Akabori, Sadatoshi,Ohtomi, Michiko,Shimada, Kazuhide,Takemura, Ayami
, p. 1273 - 1274 (1981)
The reaction of anions derived from Schiff bases (N-(α-methylbenzylidene)aniline and N-cyclohexylideneaniline) with ethyl iodide or diethyl sulfate in aprotic solvents, in the presence of 18-crown-6, is found to give a high ratio of N/(N+C) or C/(N+C) alkylation when conducted in benzene or in dioxane.
Substrate-dependent regiodivergent three-component condensation of 1H-pyrrole-2,3-diones, malononitrile and 4-hydroxyquinolin-2(1H)-ones
Salnikova, Tatyana V.,Sabitov, Andrey A.,Dmitriev, Maksim V.,Maslivets, Andrey N.,Rubin, Michael
, (2021/05/05)
An efficient regiodivergent three-component condensation of 1H-pyrrole-2,3-diones, malononitrile, and 4-hydroxyquinolin-2(1H)-ones was developed. The reaction can lead to the formation of spiro[pyrano[3,2-c]quinoline-4,3′-pyrrole] derivatives or the substituted 1,5-dihydropyrrole-2-ones depending on the substituents of 1H-pyrrole-2,3-diones and reaction conditions.
An efficient proline-based homogeneous organocatalyst with recyclability
Li, Qiang,Li, Yuan,Wang, Jingdong,Lin, Yingjie,Wei, Zhonglin,Duan, Haifeng,Yang, Qingbiao,Bai, Fuquan,Li, Yaoxian
supporting information, p. 827 - 831 (2018/02/03)
In this work, a homogeneous organocatalyst was developed for the asymmetric reduction of imines. This catalyst could be separated by cyclodextrin-modified Fe3O4@SiO2 magnetic nanoparticles and then released back into a fre
