فهرست مقالات Dialkylacetylene dicarboxylate دسترسی آزاد مقاله صفحه چکیده متن کامل 1 - Multi-component preparation of diethyl/methyl 1,3-diaryl-1,2,3,6-tetrahydro-pyrimidine-4,5-dicarboxylates using hydrated phosphomolybdic acid as an efficient catalyst Mehdi Abaszadeh Mohammad Seifi Majid Ghashang