Ngày tải lên :
03/04/2014, 12:18
... Ar1: phenyl; p-bromphenyl; p-nitrophenyl; 2,4-đinitrophenyl Ar3: 2-pirolyl; 2-thienyl; 2-furyl; 2-piriđyl; 3-piriđyl; 4-piriđyl; 3-quinolyl Ar5: 3,5-đi triazolyl (A); 1,3- 1,4-đi phenyl (B C); ... Phenyl ; p-bromphenyl; p-nitrophenyl ; 2,4-initrophenyl 3-quinolyl Ar3: 2-furyl, 2-pirolyl, 2-thienyl, 2-piriđyl, 3-piriđyl, 4-piriđyl, Ar5: 3,5-đi th triazolyl (A) ; 1,3- 1,4-đi phenyl (B v C) ; 4,4-i ... (s) 7,41 (J23= 4,4) (J23= 4,4) 7,10 7,38 7,56 7,75 (J23= 4,5) (J23= 4,5) (J23= 4,7) (J23= 4,7) 12,10 (s) 10,70 (s) 7,30 (d) 7,70 (s) 6,84 (d) 7,58 (d) (J23= 4,5) (J23= 4,5) (J23= 4,6) (J23= 4,7)...