Catalyst-free reactions under solvent-free conditions: microwave-assisted synthesis of heterocyclic hydrazones below the melting points of neat reactants.

作者: Marjan Ješelnik , Slovenko Polanc , Marijan Kocevar , Rajender S. Varma

DOI: 10.1039/B104508N

关键词:

摘要: The reaction of neat 5- or 8-oxobenzopyran-2(1H)-ones, 1–3, with a variety aromatic and heteroaromatic hydrazines, 4, is remarkably accelerated upon irradiation in household microwave oven the absence any catalyst, solid support or solvent thus providing an environmentally friendly route to several heterocyclic hydrazones.

参考文章(18)
S. Caddick, Microwave assisted organic reactions Tetrahedron. ,vol. 51, pp. 10403- 10432 ,(1995) , 10.1016/0040-4020(95)00662-R
Miha Tis̈ler, Vladimir Kepe, Marijan Kocevar, Solvenko Polanc, Bojan Verc̈ek, A simple and general one-pot synthesis of some 2h-pyran-2-ones and fused pyran-2-ones Tetrahedron. ,vol. 46, pp. 2081- 2088 ,(1990) , 10.1016/S0040-4020(01)89774-X
András Vass, József Dudás, Rajender S. Varma, Solvent-free synthesis of N-sulfonylimines using microwave irradiation Tetrahedron Letters. ,vol. 40, pp. 4951- 4954 ,(1999) , 10.1016/S0040-4039(99)00867-9
Thierry Vidal, Alain Petit, André Loupy, Richard N Gedye, Re-examination of Microwave-Induced Synthesis of Phthalimides Tetrahedron. ,vol. 56, pp. 5473- 5478 ,(2000) , 10.1016/S0040-4020(00)00445-2
Boris Recelj, Tanja Lukanc, Simona Golič Grdadolnik, Andrej Petrič, Bojan Verček, Tomaž Solmajer, Slovenko Polanc, Marijan Kočevar, Polonca Trebše, Transformation of 5-Oxo Substituted Fused Pyran-2-ones. Lactam Versus Hydrazone Formation Synthetic Communications. ,vol. 27, pp. 2637- 2644 ,(1997) , 10.1080/00397919708004133
Satya Paul, Mukta Gupta, Rajive Gupta, André Loupy, None, Microwave assisted solvent-free synthesis of pyrazolo[3,4-b]quinolines and pyrazolo[3,4-c]pyrazoles using p-TsOH Tetrahedron Letters. ,vol. 42, pp. 3827- 3829 ,(2001) , 10.1016/S0040-4039(01)00505-6
Bimal K. Banik, Khaled J. Barakat, Dilip R. Wagle, Maghar S. Manhas, Ajay K. Bose, Microwave-assisted rapid and simplified hydrogenation Journal of Organic Chemistry. ,vol. 64, pp. 5746- 5753 ,(1999) , 10.1021/JO981516S
Rajender S Varma, Rajender Dahiya, Sudhir Kumar, None, Clay catalyzed synthesis of imines and enamines under solvent-free conditions using microwave irradiation Tetrahedron Letters. ,vol. 38, pp. 2039- 2042 ,(1997) , 10.1016/S0040-4039(97)00261-X