Cycloaddition of single oxygen and triazolinedione (TAD) with spirocyclopentadienyl-1,3,5-cycloheptatrienes<sup>1</sup>: tropilidene versus norcaradiene reactivity期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Cycloaddition of single oxygen and triazolinedione (TAD) with spirocyclopentadienyl-1,3,5-cycloheptatrienes¹: tropilidene versus norcaradiene reactivity

Authors:	Waldemar Adam Hector Rebollo Heinz Dürr Karl-Heinz Pauly Karl Peters Eva-Maria Peters Hans-Georg von Schnering

Affiliation:	Institut für Organische Chemie, Universität Würzburg, Am Hubland, D8700 Würzburg BRD;Department of Chemistry, University of Puerto Rico, Rio Piedras, Puerto Rico 00931 USA;Fachbereich Chemie, Universität des Saarlandes, D-6600 Saarbrücken 11 BRD;Max-Planck-Institut für Festkörperforschung, Heisenbergstr. 1, Postfach 800665, D-7000 Stuttgart 80 BRD

Abstract:	4-Methyl-1,2,4-triazoline-3,5-dione (MTAD) gives with 7-spiro-fluorenyl-1,3,5-cycloheptatriene ( $1d$ ) initially he norcaradine-type urazole ( $N3d$ ) which at ambient temperatures rearranges into ( $6d$ ), while ¹0₂ gives the tropilidene-type endoperoxide ( $T4d$ ).

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