Summary. Carbomethoxymethylene and carbethoxymethylene triphenylphosphoranes (1a, b) react with 1... more Summary. Carbomethoxymethylene and carbethoxymethylene triphenylphosphoranes (1a, b) react with 1,2-naphthoquinone-1-benzimide (8) to give the corresponding 1-benzoylimino-1H-naphthalen-2-ylidene-acetic esters 9a,b and 2-(1-benzoylamino-naphthalen-2-yl)-but-2-enedioic esters 10a,b together with 1-benzamido-2-naphthol (11). Application of Wittig-Horner reagents 4a,b on 8 at room temperature and in the presence of alcoholic sodium alkoxide renders 2-(1-benzoylamino-naphthalen-2-yl)-3-phosphonylsuccinic esters 12a,b. Conducting the reaction in refluxing toluene and in the presence of sodium hydride led to the formation of 2-benzamido-naphthol-1-ethyl ether (13). 1-Benzamido-2-naphthol (11) was also isolated from both reaction media. Trimethyl and dimethyl phosphites (7a,b) react with 8 to 14 as the sole product. Mechanisms accounting for the formation of the new products are discussed, and the probable structures of the products are presented based on analytical and spectroscopic data.Zusammenfassung. Carbomethoxymethylen- und Carbethoxymethylen-triphenylphosphorane (1a,b) reagieren mit 1,2-Naphthochinon-1-benzimid (8) zu den entsprechenden 1-Benzoylimino-1H-naphthalin-2-yliden-essigsäureestern 9a,b und zu den 2-(1-Benzoylamino-naphthalin-2-yl)-but-2-endionestern 10a,b sowie zu 1-Benzamido-2-naphthol (11). Einwirkung der Wittig-Horner-Reagenzien 4a,b auf 8 bei Raumtemperatur in Gegenwart von alkoholischem Natriumalkoxid ergibt die 2-(1-Benzoylamino-naphthalin-2-yl)-3-phosphonyl-bernsteinsäureester 12a,b. Durchführung der Reaktion in Toluol am Rückfluß in Gegenwart von Natriumhydrid führte zur Bildung von 2-Benzamido-naphthol-1-ethylether (13). Aus derselben Reaktionsmischung konnte auch 1-Benzamido-2-naphthol (11) isoliert werden. Tri- und Dimethylphosphite (7a,b) reagieren mit 8 zu 14 als einzigem Produkt. Mechanismen, die zur Bildung der neuen Verbindungen führen, werden diskutiert, und die nach analytischen und spektroskopischen Befunden wahrscheinlichen Strukturen werden vorgestellt.
An entry from the Cambridge Structural Database, the world's repository for small molecule cr... more An entry from the Cambridge Structural Database, the world's repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
An entry from the Cambridge Structural Database, the world's repository for small molecule cr... more An entry from the Cambridge Structural Database, the world's repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
An entry from the Cambridge Structural Database, the world's repository for small molecule cr... more An entry from the Cambridge Structural Database, the world's repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
... Titre du document / Document title. A facile synthesis of 2-phenylquinazoline derivatives. Au... more ... Titre du document / Document title. A facile synthesis of 2-phenylquinazoline derivatives. Auteur(s) / Author(s). ISSAC Yvette A. ; ARSANIOUS Mona H. ; EL-NABI Hisham A. Abd ; Revue / Journal Title. Egyptian journal of chemistry ISSN 0449-2285 Source / Source. 2002, vol. ...
Summary. Carbomethoxymethylene and carbethoxymethylene triphenylphosphoranes (1a, b) react with 1... more Summary. Carbomethoxymethylene and carbethoxymethylene triphenylphosphoranes (1a, b) react with 1,2-naphthoquinone-1-benzimide (8) to give the corresponding 1-benzoylimino-1H-naphthalen-2-ylidene-acetic esters 9a,b and 2-(1-benzoylamino-naphthalen-2-yl)-but-2-enedioic esters 10a,b together with 1-benzamido-2-naphthol (11). Application of Wittig-Horner reagents 4a,b on 8 at room temperature and in the presence of alcoholic sodium alkoxide renders 2-(1-benzoylamino-naphthalen-2-yl)-3-phosphonylsuccinic esters 12a,b. Conducting the reaction in refluxing toluene and in the presence of sodium hydride led to the formation of 2-benzamido-naphthol-1-ethyl ether (13). 1-Benzamido-2-naphthol (11) was also isolated from both reaction media. Trimethyl and dimethyl phosphites (7a,b) react with 8 to 14 as the sole product. Mechanisms accounting for the formation of the new products are discussed, and the probable structures of the products are presented based on analytical and spectroscopic data.Zusammenfassung. Carbomethoxymethylen- und Carbethoxymethylen-triphenylphosphorane (1a,b) reagieren mit 1,2-Naphthochinon-1-benzimid (8) zu den entsprechenden 1-Benzoylimino-1H-naphthalin-2-yliden-essigsäureestern 9a,b und zu den 2-(1-Benzoylamino-naphthalin-2-yl)-but-2-endionestern 10a,b sowie zu 1-Benzamido-2-naphthol (11). Einwirkung der Wittig-Horner-Reagenzien 4a,b auf 8 bei Raumtemperatur in Gegenwart von alkoholischem Natriumalkoxid ergibt die 2-(1-Benzoylamino-naphthalin-2-yl)-3-phosphonyl-bernsteinsäureester 12a,b. Durchführung der Reaktion in Toluol am Rückfluß in Gegenwart von Natriumhydrid führte zur Bildung von 2-Benzamido-naphthol-1-ethylether (13). Aus derselben Reaktionsmischung konnte auch 1-Benzamido-2-naphthol (11) isoliert werden. Tri- und Dimethylphosphite (7a,b) reagieren mit 8 zu 14 als einzigem Produkt. Mechanismen, die zur Bildung der neuen Verbindungen führen, werden diskutiert, und die nach analytischen und spektroskopischen Befunden wahrscheinlichen Strukturen werden vorgestellt.
An entry from the Cambridge Structural Database, the world's repository for small molecule cr... more An entry from the Cambridge Structural Database, the world's repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
An entry from the Cambridge Structural Database, the world's repository for small molecule cr... more An entry from the Cambridge Structural Database, the world's repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
An entry from the Cambridge Structural Database, the world's repository for small molecule cr... more An entry from the Cambridge Structural Database, the world's repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
... Titre du document / Document title. A facile synthesis of 2-phenylquinazoline derivatives. Au... more ... Titre du document / Document title. A facile synthesis of 2-phenylquinazoline derivatives. Auteur(s) / Author(s). ISSAC Yvette A. ; ARSANIOUS Mona H. ; EL-NABI Hisham A. Abd ; Revue / Journal Title. Egyptian journal of chemistry ISSN 0449-2285 Source / Source. 2002, vol. ...
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