Sayyahi, S., Jahanbakhshi, S., Dehghani, Z. (2011). A green and efficient method for the preparation of 3, 4-dihydropyrimidin-2(1H)-ones using quaternary ammonium- treated clay in water. International Journal of Heterocyclic Chemistry, 1(3), 49-56.
Soheil Sayyahi; Sedigheh Jahanbakhshi; Zahra Dehghani. "A green and efficient method for the preparation of 3, 4-dihydropyrimidin-2(1H)-ones using quaternary ammonium- treated clay in water". International Journal of Heterocyclic Chemistry, 1, 3, 2011, 49-56.
Sayyahi, S., Jahanbakhshi, S., Dehghani, Z. (2011). 'A green and efficient method for the preparation of 3, 4-dihydropyrimidin-2(1H)-ones using quaternary ammonium- treated clay in water', International Journal of Heterocyclic Chemistry, 1(3), pp. 49-56.
Sayyahi, S., Jahanbakhshi, S., Dehghani, Z. A green and efficient method for the preparation of 3, 4-dihydropyrimidin-2(1H)-ones using quaternary ammonium- treated clay in water. International Journal of Heterocyclic Chemistry, 2011; 1(3): 49-56.
A green and efficient method for the preparation of 3, 4-dihydropyrimidin-2(1H)-ones using quaternary ammonium- treated clay in water
1Chemistry Department, Mahshahr Branch, Islamic Azad University, Mahshahr 63519, Iran
2Chemistry Department, Omidieh Branch, Islamic Azad University, Omidieh, Iran
Abstract
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
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