A green and efficient method for the preparation of 3, 4-dihydropyrimidin-2(1H)-ones using quaternary ammonium- treated clay in water
الموضوعات : International Journal of Heterocyclic Chemistry
Soheil Sayyahi
1
(
Chemistry Department, Mahshahr Branch, Islamic Azad University, Mahshahr 63519, Iran
)
Sedigheh Jahanbakhshi
2
(
Chemistry Department, Omidieh Branch, Islamic Azad University, Omidieh, Iran
)
Zahra Dehghani
3
(
Chemistry Department, Omidieh Branch, Islamic Azad University, Omidieh, Iran
)
الکلمات المفتاحية: Biginelli reaction, Multicomponent reactions, organoclay, 3, 4-Dihydropyrimidin-2(1H)-ones,
ملخص المقالة :
The reactive intermediate generated by the addition of tert-butyl and 1,1,3,3-tetramethyl butyl isocyanide and cyclohexyl isocyanide to dialkyl acetylenedicarboxylate was trapped by 3-hydroxy pyridine to produce highly functionalized 4H-chromenes in fairly good yields
