A simple method for the synthesis of 5 (het)aryl 3 cyano 1 ethyl 2(1H) pyrazinones was proposed. ... more A simple method for the synthesis of 5 (het)aryl 3 cyano 1 ethyl 2(1H) pyrazinones was proposed. The method is based on the hydrolysis of the corresponding 2,3 dicyanopyrazinium salts. The spectral properties of pyrazinones were studied and their crystallographic investiga tion was carried out. The possibility of introduction of 5 (het)aryl 3 cyano 1 ethyl 2(1H) pyrazinones into the [2+4] cycloaddition under the microwave activation conditions was shown.
The direct cyclopalladation of 3-methoxyimino-2-(4-chlorophenyl)-3H-indole (1a) and 3-methoxyimin... more The direct cyclopalladation of 3-methoxyimino-2-(4-chlorophenyl)-3H-indole (1a) and 3-methoxyimino-2-phenyl-3H-indole (1b) results in the regioselective activation of the ortho σ[C(sp2, phenyl)-H] bond affording (μ-OAc)2[Pd{κ2-C,N-C6H3-4R-1-(C8H4N-3′-NOMe)}]2 (2) {R=Cl (2a) or H (2b)} that contain a central “Pd(μ-OAc)2Pd” core. Compounds 2a and 2b reacted with triphenylphosphine (in a molar ratio PPh3:2=2) giving [Pd{κ2-C,N-C6H3-4R-1-(C8H4N-3′-NOMe)}(OAc)(PPh3)] (3) {R=Cl (3a) or H (3b)}. Treatment of 2a or 2b with
The study of the reactivity of the 3-methoxyimino-2-phenyl-3 H-indoles C 6H 4-4R 1-1-[C 8H 4N-3'-... more The study of the reactivity of the 3-methoxyimino-2-phenyl-3 H-indoles C 6H 4-4R 1-1-[C 8H 4N-3'-NOMe] [R 1 = Cl ( 1a) or H ( 1b)] with cis-[PtCl 2(dmso) 2] has allowed the isolation of trans-[Pt{C 6H 4-4R 1-1-[C 8H 4N-3'-NOMe]}Cl 2(dmso)] [R 1 = Cl ( 2a) or H ( 2b)] and cis-[Pt{C 6H 4-4R 1-1-[C 8H 4N-3'-NOMe]}Cl 2(dmso)]·CH 2Cl 2 [R 1 = Cl ( 3a) or H ( 3b)]. Their crystal structures confirm: (a) the existence of a Pt sbnd N indole bond, (b) the relative arrangement of the Cl - ligands ( trans in 2a and 2b or cis in 3a and 3b) and (c) the anti- ( E) configuration of the oxime. A comparative study of the spectroscopic and photo-optical properties of ligands and their platinum(II) complexes ( 2a, 2b, 3a and 3b) is also reported.
In his 2000 paper, Hookway intends to argue that Fumerton's Principle of Inferential Justificatio... more In his 2000 paper, Hookway intends to argue that Fumerton's Principle of Inferential Justification does not have the sceptical consequences that Fumerton sees into it. We think Hookway is right in holding this. However, after commenting on his main considerations for this thesis, we shall develop an independent line of argument which reinforces the same conclusion.
In his 2000 paper, Hookway intends to argue that Fumerton's Principle of Inferential Justificatio... more In his 2000 paper, Hookway intends to argue that Fumerton's Principle of Inferential Justification does not have the sceptical consequences that Fumerton sees into it. We think Hookway is right in holding this. However, after commenting on his main considerations for this thesis, we shall develop an independent line of argument which reinforces the same conclusion.
El texto refleja las consideraciones sociológicas y filosóficas sobre nuestro tiempo y espacio en... more El texto refleja las consideraciones sociológicas y filosóficas sobre nuestro tiempo y espacio en el lenguaje simb6lico y la voz del poeta.
A simple method for the synthesis of 5 (het)aryl 3 cyano 1 ethyl 2(1H) pyrazinones was proposed. ... more A simple method for the synthesis of 5 (het)aryl 3 cyano 1 ethyl 2(1H) pyrazinones was proposed. The method is based on the hydrolysis of the corresponding 2,3 dicyanopyrazinium salts. The spectral properties of pyrazinones were studied and their crystallographic investiga tion was carried out. The possibility of introduction of 5 (het)aryl 3 cyano 1 ethyl 2(1H) pyrazinones into the [2+4] cycloaddition under the microwave activation conditions was shown.
The direct cyclopalladation of 3-methoxyimino-2-(4-chlorophenyl)-3H-indole (1a) and 3-methoxyimin... more The direct cyclopalladation of 3-methoxyimino-2-(4-chlorophenyl)-3H-indole (1a) and 3-methoxyimino-2-phenyl-3H-indole (1b) results in the regioselective activation of the ortho σ[C(sp2, phenyl)-H] bond affording (μ-OAc)2[Pd{κ2-C,N-C6H3-4R-1-(C8H4N-3′-NOMe)}]2 (2) {R=Cl (2a) or H (2b)} that contain a central “Pd(μ-OAc)2Pd” core. Compounds 2a and 2b reacted with triphenylphosphine (in a molar ratio PPh3:2=2) giving [Pd{κ2-C,N-C6H3-4R-1-(C8H4N-3′-NOMe)}(OAc)(PPh3)] (3) {R=Cl (3a) or H (3b)}. Treatment of 2a or 2b with
The study of the reactivity of the 3-methoxyimino-2-phenyl-3 H-indoles C 6H 4-4R 1-1-[C 8H 4N-3'-... more The study of the reactivity of the 3-methoxyimino-2-phenyl-3 H-indoles C 6H 4-4R 1-1-[C 8H 4N-3'-NOMe] [R 1 = Cl ( 1a) or H ( 1b)] with cis-[PtCl 2(dmso) 2] has allowed the isolation of trans-[Pt{C 6H 4-4R 1-1-[C 8H 4N-3'-NOMe]}Cl 2(dmso)] [R 1 = Cl ( 2a) or H ( 2b)] and cis-[Pt{C 6H 4-4R 1-1-[C 8H 4N-3'-NOMe]}Cl 2(dmso)]·CH 2Cl 2 [R 1 = Cl ( 3a) or H ( 3b)]. Their crystal structures confirm: (a) the existence of a Pt sbnd N indole bond, (b) the relative arrangement of the Cl - ligands ( trans in 2a and 2b or cis in 3a and 3b) and (c) the anti- ( E) configuration of the oxime. A comparative study of the spectroscopic and photo-optical properties of ligands and their platinum(II) complexes ( 2a, 2b, 3a and 3b) is also reported.
In his 2000 paper, Hookway intends to argue that Fumerton's Principle of Inferential Justificatio... more In his 2000 paper, Hookway intends to argue that Fumerton's Principle of Inferential Justification does not have the sceptical consequences that Fumerton sees into it. We think Hookway is right in holding this. However, after commenting on his main considerations for this thesis, we shall develop an independent line of argument which reinforces the same conclusion.
In his 2000 paper, Hookway intends to argue that Fumerton's Principle of Inferential Justificatio... more In his 2000 paper, Hookway intends to argue that Fumerton's Principle of Inferential Justification does not have the sceptical consequences that Fumerton sees into it. We think Hookway is right in holding this. However, after commenting on his main considerations for this thesis, we shall develop an independent line of argument which reinforces the same conclusion.
El texto refleja las consideraciones sociológicas y filosóficas sobre nuestro tiempo y espacio en... more El texto refleja las consideraciones sociológicas y filosóficas sobre nuestro tiempo y espacio en el lenguaje simb6lico y la voz del poeta.
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