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| Content Provider | Springer Nature Link |
|---|---|
| Author | Arsanious, Mona H. N. |
| Copyright Year | 1999 |
| Abstract | 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. 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. |
| Starting Page | 921 |
| Ending Page | 928 |
| Page Count | 8 |
| File Format | |
| ISSN | 00269247 |
| Journal | Monatshefte für Chemie - Chemical Monthly |
| Volume Number | 130 |
| Issue Number | 7 |
| e-ISSN | 14344475 |
| Language | German |
| Publisher | Springer-Verlag |
| Publisher Date | 1999-07-01 |
| Publisher Place | Vienna |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Chemistry/Food Science Organic Chemistry Inorganic Chemistry Analytical Chemistry Physical Chemistry Theoretical and Computational Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry |
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