A series of selenium-bridged and tellurium-bridged heteromerousbistricyclicaromaticenes (BAEs) 15–25 with six-member and seven-member central rings have been synthesized by Barton–Kellogg olefination, twofold extrusion coupling method between tricyclic aromatic thiones and tricyclic aromatic diazo derivatives. The crystal structures of thioxanthenylidene-anthracenone (15), selenoxanthenylidene-anthracenone
8. Azidiniumsalze. 20. Mitteilung [1]. Einführung der Diazogruppe mit Azidiniumsalzen in Hydroxy-arene und Hydroxy-hetarene
作者:Heinz Balli、Volkmar Müller、Ayten Sezen-Gezgin
DOI:10.1002/hlca.19780610111
日期:1978.1.25
Diazo-Group Transfer to Hydroxy-arenes and Hydroxy-hetarenes Using Azidinium Salts
使用重氮盐将重氮基转移至羟基芳烃和羟基戊烯
Übergangsmetall-methylen-komplexe
作者:Wolfgang A. Herrmann、Martina Flöel、Cornelia Weber、John L. Hubbard、Adolf Schäfer
DOI:10.1016/0022-328x(85)80052-8
日期:1985.5
The eighteen new μ-alkylidene ruthenium complexes 5a–r and 5t are very easily and cleanly obtained along the diazoalkane or the hydrazone routes that involve treatment of the dinuclear, metal-metal doubly bonded precursor compound [(η5-C5H5)Ru(μ-NO)]2 (3) either with the diazoalkanes oxidizingagent (e.g., MnO2), with the respective hydrazones. Similarly, sulfur dioxide adds cleanly to the RuRu double
十八新μ亚烷基钌配合图5a-R和5吨非常容易且干净地沿着重氮烷或涉及治疗双核,金属-金属双键前体化合物的腙途径获得[(η 5 -C 5 H ^ 5) Ru(μ-NO)] 2(3)或重氮烷烃氧化剂(例如MnO 2)和相应的。类似地,二氧化硫干净地增加的RURU双键3,由此得到配合物(μ-SO 2)[(η 5 -C 5 H ^ 5)的Ru(NO)] 2(5S)。不管卡宾桥配体的性质如何,与它们的铁类似物相比,双金属环丙烷仅表现出末端亚硝酰基配体。对于显示出不对称取代的卡宾桥的衍生物,观察到具有占主导地位的反式异构体的顺式/反式异构现象。
Synthesis of Diazonaphthoquinones from Naphthols by Diazo-Transfer Reaction with 2-Azido-1,3-dimethylimidazolinium Chloride
An efficient synthetic method for the synthesis of diazonaphthoquinones from naphthols is described. A variety of diazonaphthoquinones were synthesized from the corresponding naphthols by the diazo transfer with 2-azido-1,3-dimethylimidazolinium chloride prepared by the reaction of 2-chloro-1,3-dimethylimidazorinium chloride and sodium azide.
Various orthodiazonaphthoquinones (1-diazo-2(1H)-naphthalenones and 2-diazo-1(2H)-naphthalenones) were synthesized using the diazo-transfer reaction between the appropriate naphthol and 2-azido-1,3-dimethylimidazolinium chloride (ADMC). The ADMC was prepared by the reaction between 2-chloro-1,3-dimethylimidazolinium chloride and sodium azide. The diazo-transfer reaction selectively introduced the diazo group at the C(2) position of 1-naphthol or the C(1) position of 2-naphthol. The naphthalenediols that were tested, except for 1,3-naphthalenediol, also reacted with ADMC to afford the corresponding monodiazotized compound. X-ray analyses suggested that the diazonaphthoquinones did not have diazoniumnaphtholate structures but had diazocarbonyl structures.