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Synthesis method of methylene malononitrile compounds
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Paragraph 0029-0033; 0059-0062, (2020/04/02)
The invention discloses a synthesis method of methylene malononitrile compounds. According to the method, in the air atmosphere, a ketone compound and malononitrile are taken as raw materials, Ru/C istaken as a catalyst, the raw materials and the catalyst
Site-specific role of bifunctional graphitic carbon nitride catalyst for the sustainable synthesis of 3,3-spirocyclic oxindoles in aqueous media
Dandia, Anshu,Gupta, Shyam L.,Mahawar, Dinesh Kumar,Parewa, Vijay,Rathore, Kuldeep S.,Saini, Pratibha,Saini, Surendra
, p. 28452 - 28465 (2021/09/22)
Functionalized graphitic carbon nitride (Sg-C3N4) has been manufactured and used as a reusable catalyst for the one-pot production of various spiro-pyrano chromenes and spiro indole-3,1′-naphthalene tetracyclic systems in aqueous med
Knoevenagel condensation reaction on a new highly-efficient La2O2CO3-TiO2 mixed oxide catalyst: Composition-effects on C[dbnd]C bond formation
Wang, Fei,Hu, Kai,Bi, Yanshuai,Wei, Xuejiao,Xue, Bing
, (2020/08/10)
The highly efficient catalytic abilities of some mixed oxides are due to cooperative interactions between acid and base functional groups present in their active sites. New La2O2CO3-TiO2 mixed oxide catalysts wi
Asymmetric organocatalytic vinylogous Michael addition triggered triple-cascade reactions of 2-hydroxycinnamaldehydes and vinylogous nucleophiles: construction of benzofused oxabicyclo[3.3.1]nonane scaffolds
Wu, Hui-Chun,Wang, Chen,Chen, Ying-Han,Liu, Yan-Kai
supporting information, p. 1762 - 1765 (2021/02/27)
An organocatalytic vinylogous Michael addition triggered triple-cascade reaction has been developed. 2-Hydroxycinnamaldehydes worked under iminium activation with either acyclic or cyclic ketone-derived α,α-dicyanoalkenes, yielding the benzofused oxabicyclo[3.3.1]nonanes bearing one quaternary stereocenter with excellent stereoselectivities.
An Ionic Liquid on a Porous Organic Framework Support: A Recyclable Catalyst for the Knoevenagel Condensation in an Aqueous System
Chen, Peng,Sun, Jin-Shi,Wu, Xian-Tao,Xiao, En-Kai,Zhang, Lei,Zhu, Guangshan
, p. 943 - 947 (2020/06/01)
Porous aromatic frameworks (PAFs) that feature a high density of phenyl rings in their robust frameworks are attractive platforms for catalysis because of their extremely high stability, high surface area, and adjustable pore size. In this paper, two PAF-