An eco‐efficient new path of mortar pestle grinding approach for the construction of methanol and ethylthio substituted pyridines with in silico studies
A green and highly regioselective approach for the synthesis of poly-substituted new pyridine derivatives via the Knoevenagelcondensation followed by the Michaeladdition. The reaction involves intramolecular cyclization of easily obtainable reactants under environmentally and economically benign mortar pestle grinding technique. This method clearly proves that spatially hindered aldehydes also actively
Fuentes, Luis; Vaquero, Juan Jose; Castillo, Juan Carlos del, Heterocycles, 1985, vol. 23, # 1, p. 93 - 98
作者:Fuentes, Luis、Vaquero, Juan Jose、Castillo, Juan Carlos del、Ardid, Maria Isabel、Soto, Jose Luis
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FUENTES, L.;VAQUERO, J. J.;CASTILLO, J. C. DEL;ARDID, M. I.;SOTO, J. L., HETEROCYCLES, 1985, 23, N 1, 93-98
作者:FUENTES, L.、VAQUERO, J. J.、CASTILLO, J. C. DEL、ARDID, M. I.、SOTO, J. L.
DOI:——
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Synthesis of Highly Substituted Pyridines via a One-Pot, Three-Component Cascade Reaction of Malononitrile with Aldehydes and S-Alkylisothiouronium Salts in Water
2-amino-4-aryl(alkyl)-6-sulfanyl pyridine-3,5-dicarbonitriles via a one-pot, three-component reaction of structurally diversified aldehydes with various S-alkylisothiouronium salts and malononitrile in water has been developed. Utilization of S-alkylisothiouronium salts as thiol equivalents greatly broadens the application of the current method, and also makes the reaction more environmentally friendly