Six palladium? complexes with isonitrosoethylacetoacetate imine Schiff base ligands, Pd(R IEAI)2, were prepared and characterized by IR, Raman and electronic spectra. Complex tran Pd(p CH3C6H4 IEAI)2 (2) cry stallizes...Six palladium? complexes with isonitrosoethylacetoacetate imine Schiff base ligands, Pd(R IEAI)2, were prepared and characterized by IR, Raman and electronic spectra. Complex tran Pd(p CH3C6H4 IEAI)2 (2) cry stallizes in the monoclinic system, space group P21/c,with a=1.2002(2),b=0.9972(2),c=1.1121(2)nm,β=90.43(3)°,Z=2,F(000)=616,μ=7.44cm-1. The final R and wR are 0.0244 and 0.0625 for 2620 observed reflections with I ≥ 2σ(I), respectively. The geometry around the Pd? ions in those complexes has a distorted PdN4 square plane, the Schiff base ligands R IEAI- being coordinated through their oximino nitrogen atoms and imino nitrogen atoms.展开更多
Nitrophenyl ferulate was synthesized in one step without the protection of the hydroxyl of ferulic acid in the presence of 1,3 dicyclohexylcarbodiimide(DCC) as the catalyst. Thus, 15 20 g of ferulic acid reacted with ...Nitrophenyl ferulate was synthesized in one step without the protection of the hydroxyl of ferulic acid in the presence of 1,3 dicyclohexylcarbodiimide(DCC) as the catalyst. Thus, 15 20 g of ferulic acid reacted with 18 07 g of 4 nitrophenol for 24 h at room temperature in the presence of 22 44 g of DCC. The crude product was recrystallized from CHCl 3 to give 16 00 g of 4 nitrophenyl ferulate and the yield was 82 5%. Elemental analysis, IR and 1H NMR techniques were used to prove the structure of the product.展开更多
文摘Six palladium? complexes with isonitrosoethylacetoacetate imine Schiff base ligands, Pd(R IEAI)2, were prepared and characterized by IR, Raman and electronic spectra. Complex tran Pd(p CH3C6H4 IEAI)2 (2) cry stallizes in the monoclinic system, space group P21/c,with a=1.2002(2),b=0.9972(2),c=1.1121(2)nm,β=90.43(3)°,Z=2,F(000)=616,μ=7.44cm-1. The final R and wR are 0.0244 and 0.0625 for 2620 observed reflections with I ≥ 2σ(I), respectively. The geometry around the Pd? ions in those complexes has a distorted PdN4 square plane, the Schiff base ligands R IEAI- being coordinated through their oximino nitrogen atoms and imino nitrogen atoms.
文摘Nitrophenyl ferulate was synthesized in one step without the protection of the hydroxyl of ferulic acid in the presence of 1,3 dicyclohexylcarbodiimide(DCC) as the catalyst. Thus, 15 20 g of ferulic acid reacted with 18 07 g of 4 nitrophenol for 24 h at room temperature in the presence of 22 44 g of DCC. The crude product was recrystallized from CHCl 3 to give 16 00 g of 4 nitrophenyl ferulate and the yield was 82 5%. Elemental analysis, IR and 1H NMR techniques were used to prove the structure of the product.
