The crystal structure of the title compound ethyl 3-（4-chlorophenyl）-3,4-dihydro-6- methyl-4-oxo-2-（pyrrolidin-1-yl）furo[2,3-d]pyrimidine-5-carboxylate （C20H20ClN3O4, Mr= 401.84） has been prepared and determined...The crystal structure of the title compound ethyl 3-（4-chlorophenyl）-3,4-dihydro-6- methyl-4-oxo-2-（pyrrolidin-1-yl）furo[2,3-d]pyrimidine-5-carboxylate （C20H20ClN3O4, Mr= 401.84） has been prepared and determined by single-crystal X-ray diffraction. The crystal is of monoclinic, space group P21/n with a = 20.6215（9）, b = 8.5311（4）, c = 21.6886（9） A^°, β = 91.607（1）°, V = 3814.0（3）A^°^3, Z = 8, Dc = 1.400 g/cm^3, F（000） = 1680, μ = 0.233 mm^-1, R = 0.0718 and wR = 0.1545 for 6717 observed reflections with I 〉 2σ（I）. X-ray diffraction analysis reveals two crystallographically independent molecules in the asymmetric unit.展开更多
A novel carbazole photoinitiator 1-(6-o-chloro-benzoyl-9-ethyl-9H-carbazol-3yl)-ethane-1-one oxime O-ethyrate is synthesized from carbazole by N-alkylation,Friedel-Crafts acylation,oximation and esterification.The str...A novel carbazole photoinitiator 1-(6-o-chloro-benzoyl-9-ethyl-9H-carbazol-3yl)-ethane-1-one oxime O-ethyrate is synthesized from carbazole by N-alkylation,Friedel-Crafts acylation,oximation and esterification.The structure is characterized by 1HNMR,13CNMR,UV and IR.This paper discuss the catalyst,temperature and time of oximation and gain the optimum reaction conditions:CH3COOK is base,temperature is 70℃ and time is 6h.The yield is 89.1%.展开更多
基金supported by the Natural Science Foundation of Hubei Province (2006ABB016)Key Science Research Project of Hubei Provincial Department of Education (No.D200724001) the Science Research Project of Yunyang Medical College (No. 2006QDJ16)
文摘The crystal structure of the title compound ethyl 3-（4-chlorophenyl）-3,4-dihydro-6- methyl-4-oxo-2-（pyrrolidin-1-yl）furo[2,3-d]pyrimidine-5-carboxylate （C20H20ClN3O4, Mr= 401.84） has been prepared and determined by single-crystal X-ray diffraction. The crystal is of monoclinic, space group P21/n with a = 20.6215（9）, b = 8.5311（4）, c = 21.6886（9） A^°, β = 91.607（1）°, V = 3814.0（3）A^°^3, Z = 8, Dc = 1.400 g/cm^3, F（000） = 1680, μ = 0.233 mm^-1, R = 0.0718 and wR = 0.1545 for 6717 observed reflections with I 〉 2σ（I）. X-ray diffraction analysis reveals two crystallographically independent molecules in the asymmetric unit.
文摘A novel carbazole photoinitiator 1-(6-o-chloro-benzoyl-9-ethyl-9H-carbazol-3yl)-ethane-1-one oxime O-ethyrate is synthesized from carbazole by N-alkylation,Friedel-Crafts acylation,oximation and esterification.The structure is characterized by 1HNMR,13CNMR,UV and IR.This paper discuss the catalyst,temperature and time of oximation and gain the optimum reaction conditions:CH3COOK is base,temperature is 70℃ and time is 6h.The yield is 89.1%.
