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A new chiral, camphor-derived organic phosphoric acid catalyst, 2-endo-3-endo-dimethylbornane2,3-diyl phosphate, was synthesized and was succesfully used as organocatalyst in the synthesis of optical active 3ethyl 5-methyl 6-methyl-4-(4-nitrophenyl)-2-(trifluoromethyl)-1,4-dihydropyridine-3,5-dicarboxylate (3), and methyl 2,2,7-trimethyl-5-(4-nitrophenyl)-4-oxo-5,8-dihydro-4H-[1,3]dioxino[4,5-b]pyridine-6-carboxylate (4).

SYNTHESIS OF A NEW CAMPHOR-DERIVED CHIRAL ORGANIC PHOSPHORIC ACID CATALYST AND ITS APPLICATION IN THE HANTZSCH REACTION