@article{ author = {Sayyahi, Soheil, Jahanbakhshi, Sedigheh, Dehghani, Zahra}, title = {A green and efficient method for the preparation of 3, 4-dihydropyrimidin-2(1H)-ones using quaternary ammonium- treated clay in water}, journal = {Journal of Chemical Reactivity and Synthesis}, year = {2011}, volume = {1}, number = {3}, pages = {49-56}, doi = {} }