1982
DOI: 10.1002/cber.19821150205
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Untersuchungen an Diazoverbindungen und Aziden, XL. 1,3‐Bis(diazo)‐1 H ‐phenalen‐2(3 H )‐on

Abstract: Aus dem Triketonhydrat 8 und Tosylhydrazid im Molverhaltnis 1 : 1 erhalt man neben 6 als Hauptprodukt noch das 3-Diazo-1 ,2-diketon 9. Die gleiche Umsetzung liefert bei einem Reaktandenverhaltnis von 1 : 2 das 3-Diazo-l,2-diketon-tosylhydrazon 12, dessen Alkalispaltung zur Bildung der Titelsubstanz 13 fuhrt. Von (Bromphenylsulfony1)hydrazon 16 wurde eine Rontgenstrukturanalyse angefertigt. Investigations on Diazo Compounds and Azides, XL I) 1,3-Bis(diazo)-lH-phenalen-2(3H)-oneThe triketone hydrate 8 reacts wit… Show more

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Cited by 7 publications
(1 citation statement)
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“…The same yield of anilide 709 was obtained when either 708 or 710 were heated in the presence of aniline (Scheme 77). [504] The ring contraction of 714 is remarkable for both the β-lactam products 715 and the preparation of the 4-diazopyrrolidine-2,3-diones 714, which starts from dichloromaleimides 711. [505] The amines 713, obtained from 712 by azide displacement and reduction, are diazotized to give 714 with concomitant hydrolysis of the vinyl chloride function.…”
Section: Diazodiketonesmentioning
confidence: 99%
“…The same yield of anilide 709 was obtained when either 708 or 710 were heated in the presence of aniline (Scheme 77). [504] The ring contraction of 714 is remarkable for both the β-lactam products 715 and the preparation of the 4-diazopyrrolidine-2,3-diones 714, which starts from dichloromaleimides 711. [505] The amines 713, obtained from 712 by azide displacement and reduction, are diazotized to give 714 with concomitant hydrolysis of the vinyl chloride function.…”
Section: Diazodiketonesmentioning
confidence: 99%