Preparation and X-Ray Crystal Structure of 3-(4-(Dimethylamino)phenyl)-2-(phenylamino)isoquinolin-1(2H)-one, 3-(4-Methoxyphenyl)-2-(phenylamino)isoquinolin-1(2H)-one, and 2-Methyl-N′-(4-methylbenzoyl)-N′-phenylbenzohydrazide from Polylithiated 2-methylbenzoic Acid Phenylhydrazide and Methyl 4-dimethylaminobenzoate, Methyl 4-methoxybenzoate, or Methyl 4-methylbenzoate
作者:William G. Shuler、Ellyn A. Smith、Sloan M. Hess、Thomas M. C. McFadden、Clyde R. Metz、Donald G. VanDerveer、William T. Pennington、Phillip J. Mabe、Shabree L. Knick、Charles F. Beam
DOI:10.1007/s10870-012-0342-5
日期:2012.9
2-Methylbenzoic acid phenylhydrazide was polylithiated with excess lithium diisopropylamide, and the resulting polylithiated intermediate was condensed with methyl 4-dimethylaminobenzoate or methyl 4-methoxybenzoate to afford C-acylated intermediates that were immediately acid cyclized to afford 3-(4-(dimethylamino)-phenyl)-2-(phenylamino)isoquinolin-1(2H)-one C23H21N3O or 3-(4-methoxyphenyl)-2-(phenylamino)isoquinolin-1(2H)-one C22H18N2O2. The polylithiated intermediate underwent N-acylation when it was condensed with methyl 4-methylbenzoate to give 2-methyl-N′-(4-methylbenzoyl)-N′-phenylbenzohydrazide C22H20N2O2. Crystals of C23H21N3O 4a are triclinic, P $$ \overline1} $$ , a = 9.138(2) Å, b = 10.519(2) Å, c = 11.082(2) Å, α = 91.55(3)°, β = 108.92(3)°, γ = 111.16(3)°, Z = 2, V = 927.1(3) Å3, R 1 = 0.0711 and wR 2 = 0.1828 for reflections with I > 2σ(I); crystals of C22H18N2O2 4b are monoclinic, P21/c, a = 8.821(1) Å, b = 13.276(2) Å, c = 15.482(3) Å, β = 105.271(4)°, Z = 4, V = 1748.9(5) Å3, R 1 = 0.0416 and wR 2 = 0.1030 for reflections with I > 2σ(I); crystals of C22H20N2O2 3 are orthorhombic, Pbca, a = 13.505(3) Å, b = 9.733(2) Å, c = 28.601(6) Å, Z = 8, V = 3759.4(13) Å3, R 1 = 0.1683 and wR 2 = 0.3526 for reflections with I > 2σ(I). X-ray crystal analysis was important for the confirmation of the structure of 3-(4-(dimethylamino)phenyl)-2-(phenylamino)isoquinolin-1(2H)-one C23H21N3O 4a, 3-(4-methoxyphenyl)-2-(phenylamino)isoquinolin-1(2H)-one C22H18N2O2 4b, and 2-methyl-N′-(4-methylbenzoyl)-N′-phenylbenzohydrazide C22H20N2O2 3 prepared from polylithiated 2-methylbenzoicacid phenylhydrazide and methyl 4-dimethylaminobenzoate, methyl 4-methoxybenzoate, or methyl 4-methylbenzoate. Crystals of C23H21N3O 4a are triclinic, P $$ \overline1} $$ , a = 9.138(2) Å, b = 10.519(2) Å, c = 11.082(2) Å, α = 91.55(3)°, β = 108.92(3)°, γ = 111.16(3)°, Z = 2, V = 927.1(3) Å3, R 1 = 0.0711 and wR 2 = 0.1828 for reflections with I > 2σ(I); crystals of C22H18N2O2 4b are monoclinic, P21/c, a = 8.821(1) Å, b = 13.276(2) Å, c = 15.482(3) Å, β = 105.271(4)°, Z = 4, V = 1748.9(5) Å3, R 1 = 0.0416 and wR 2 = 0.1030 for reflections with I > 2σ(I); crystals of C22H20N2O2 3 are orthorhombic, Pbca, a = 13.505(3) Å, b = 9.733(2) Å, c = 28.601(6) Å, Z = 8, V = 3759.4(13) Å3, R 1 = 0.1683 and wR 2 = 0.3526 for reflections with I > 2σ(I).
用过量的二异丙基酰胺锂对 2-甲基苯甲酸苯肼进行多硫化、生成的多硫化中间体与 4-二甲氨基苯甲酸甲酯或 4-甲氧基苯甲酸甲酯缩合,得到 C-酰化中间体,立即进行酸环化,得到 3-(4-(二甲氨基)-苯基)-2-(苯基氨基)异喹啉-1(2H)-酮 C23H21N3O 或 3-(4-甲氧基苯基)-2-(苯基氨基)异喹啉-1(2H)-酮 C22H18N2O2。多硫化中间体在与 4-甲基苯甲酸甲酯缩合时发生 N-酰化反应,生成 2-甲基-N′-(4-甲基苯甲酰基)-N′-苯基苯甲酰肼 C22H20N2O2。C23H21N3O 4a 的晶体呈三菱形,P$\overline1}$$ ,a = 9.138(2) 埃,b = 10.519(2) Å, c = 11.082(2) Å, α = 91.55(3)°, β = 108.92(3)°, γ = 111.16(3)°, Z = 2, V = 927.1(3) Å3, R 1 = 0.0711 and wR 2 = 0.1828 for reflections with I > 2σ(I); C22H18N2O2 4b 晶体为单斜晶系,P21/c, a = 8.821(1) Å, b = 13.276(2) Å, c = 15.482(3) Å, β = 105.271(4)°, Z = 4, V = 1748.9(5) Å3, R 1 = 0.0416 and wR 2 = 0.1030 for reflections with I > 2σ(I);C22H20N2O2 3 的晶体为正方体,Pbca,a = 13。505(3) Å, b = 9.733(2) Å, c = 28.601(6) Å, Z = 8, V = 3759.4(13) Å3, R 1 = 0.1683 and wR 2 = 0.3526 for reflections with I > 2σ(I)。X 射线晶体分析对于确认 3-(4-(二甲基氨基)苯基)-2-(苯基氨基)异喹啉-1(2H)-酮 C23H21N3O 4a、3-(4-甲氧基苯基)-2-(苯基氨基)异喹啉-1(2H)-酮 C22H18N2O2 4b、和 2-甲基-N′-(4-甲基苯甲酰基)-N′-苯基苯甲酰肼 C22H20N2O2 3,由多硫化 2-甲基苯甲酸苯甲酰肼和 4-二甲氨基苯甲酸甲酯、4-甲氧基苯甲酸甲酯或 4-甲基苯甲酸甲酯制备。C23H21N3O 4a 的晶体呈三菱形,P$\overline1}$$ ,a = 9.138(2) 埃,b = 10.519(2) Å, c = 11.082(2) Å, α = 91.55(3)°, β = 108.92(3)°, γ = 111.16(3)°, Z = 2, V = 927.1(3) Å3, R 1 = 0.0711 and wR 2 = 0.1828 for reflections with I > 2σ(I); C22H18N2O2 4b 晶体为单斜晶系,P21/c, a = 8.821(1) Å, b = 13.276(2) Å, c = 15.482(3) Å, β = 105.271(4)°, Z = 4, V = 1748.9(5) Å3, R 1 = 0.0416 and wR 2 = 0.1030 for reflections with I > 2σ(I);C22H20N2O2 3 的晶体为正方体,Pbca,a = 13。505(3) Å, b = 9.733(2) Å, c = 28.601(6) Å, Z = 8, V = 3759.4(13) Å3, R 1 = 0.1683 and wR 2 = 0.3526 for reflections with I > 2σ(I).