فهرس المقالات Diels–Alder reaction حرية الوصول المقاله صفحة الملخص نص كامل 1 - A density functional theory study of the region selectivity of the Diels –Aldercyclo addition of 2 methyl- substituted diene with selected dienophiles A. Nouri E. Zahedi F. Joneydi Jafari S. Sedaghat
