A series of 5-aryl-3-ferrocenyl dihydropyrazole compounds were synthesized by using acetylferrocene.The structures of these compounds were characterized by IR,1H NMR spectra and MS.The crystal structure of compound 2a...A series of 5-aryl-3-ferrocenyl dihydropyrazole compounds were synthesized by using acetylferrocene.The structures of these compounds were characterized by IR,1H NMR spectra and MS.The crystal structure of compound 2a was determined by X-ray single crystal diffraction.The compound 2a belongs to the triclinic,space group P1,with a=10.203(6),b=10.447(7),c=11.557(8),α=96.80(3)°,β=116.05(2)°,γ=92.72(2)°,V=1092.1(12)3,Z=2,F(000)=412,Dc=1.353 g/cm3,μ=1.479 mm-1,and the final R1=0.0381,wR2=0.0834.展开更多
A compound ethyl(5S,6R)-2-(4-methylphenyl)-6-[(1R)-tert-butyldimethylsilyloxyethy]-penem-3-carboxylate was synthesized through displacement,acylation and Wittig cyclization reaction of optically active material(3R,4R)...A compound ethyl(5S,6R)-2-(4-methylphenyl)-6-[(1R)-tert-butyldimethylsilyloxyethy]-penem-3-carboxylate was synthesized through displacement,acylation and Wittig cyclization reaction of optically active material(3R,4R)-3-[(1R)-tert-butyldimethylsilyloxyethyl]-4-acetoxy-2-azetidi-none(4AA)upon thionocarboxlic acid.The intermediates and the target product were characterized by 1HNMR,IR,elementary analysis and MS.展开更多
文摘A series of 5-aryl-3-ferrocenyl dihydropyrazole compounds were synthesized by using acetylferrocene.The structures of these compounds were characterized by IR,1H NMR spectra and MS.The crystal structure of compound 2a was determined by X-ray single crystal diffraction.The compound 2a belongs to the triclinic,space group P1,with a=10.203(6),b=10.447(7),c=11.557(8),α=96.80(3)°,β=116.05(2)°,γ=92.72(2)°,V=1092.1(12)3,Z=2,F(000)=412,Dc=1.353 g/cm3,μ=1.479 mm-1,and the final R1=0.0381,wR2=0.0834.
文摘A compound ethyl(5S,6R)-2-(4-methylphenyl)-6-[(1R)-tert-butyldimethylsilyloxyethy]-penem-3-carboxylate was synthesized through displacement,acylation and Wittig cyclization reaction of optically active material(3R,4R)-3-[(1R)-tert-butyldimethylsilyloxyethyl]-4-acetoxy-2-azetidi-none(4AA)upon thionocarboxlic acid.The intermediates and the target product were characterized by 1HNMR,IR,elementary analysis and MS.
