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Pan S, Li P, Xu G, Guo J, Ke L, Xie C, Zhang Z, Hui Y. MCM-41@Schiff base-Co(OAc)2 as an efficient catalyst for the synthesis of pyran derivatives. RESEARCH ON CHEMICAL INTERMEDIATES 2019. [DOI: 10.1007/s11164-019-04038-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Khandebharad AU, Sarda SR, Farooqui MN, Arif Khan Pathan M, Agrawal BR. Solvent in Solute System for the Synthesis of Highly Substituted Pyridine by Using Choline Hydroxide and Water. Polycycl Aromat Compd 2018. [DOI: 10.1080/10406638.2018.1485713] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
| | - Swapnil R. Sarda
- Department of Chemistry, J. E. S. College, Jalna, Maharashtra, India
| | - Mazahar N. Farooqui
- Department of Chemistry, Maulana Azad College, Aurangabad, Maharashtra, India
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Qian S, Li M, Liu J, Wang C. A simple green protocol for the synthesis of ethyl 3-amino-1-aryl-1 H-benzo[ f] chromene-2-carboxylates in aqueous media. JOURNAL OF CHEMICAL RESEARCH 2017. [DOI: 10.3184/174751917x15016663252830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
An eco-friendly and efficient straightforward method has been developed for the synthesis of ethyl 3-amino-1-aryl-1 H-benzo[ f]chromene-2-carboxylate derivatives via 1,4-diazabicyclo[2.2.2]octane (DABCO)-catalysed cyclisation of β-naphthol and 3-aryl-2-cyanoacrylates using water as a green solvent. All products precipitated from the reaction mixture and were isolated by simple filtration. No further work-up nor purification was necessary. The structure of ethyl 3-amino-1-aryl-1 H-benzo[ f]chromene-2-carboxylate was further confirmed by X-ray single crystal analysis.
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Affiliation(s)
- Siran Qian
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Street, Yangzhou 225002, P.R. China
| | - Mingjie Li
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Street, Yangzhou 225002, P.R. China
| | - Jiaming Liu
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Street, Yangzhou 225002, P.R. China
| | - Cunde Wang
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Street, Yangzhou 225002, P.R. China
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Gadilohar BL, Shankarling GS. Choline based ionic liquids and their applications in organic transformation. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2016.11.136] [Citation(s) in RCA: 123] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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