Studies in quinoxaline series. Part 18. Structure of products of a new reaction of tetrazolo[1,5-a]quinoxaline 5-oxide with carbanions. X-Ray molecular structure of 4-acetyl-4-methyl-3b,4-dihydroazirino[1,2-a]tetrazolo-[5,1-c]quinoxaline
作者:Jiří Klicnar、Jaromír Toman、Antonín Lyčka、Jindřich Hašek、Jiří Ječný、Karel Huml
DOI:10.1039/p19900003049
日期:——
to give a racemic mixture of the derivatives of aziridinotetrazoloquinoxaline 10 and 11. Their structure and the trans configuration of hydrogen atom and methyl group on the aziridine ring of compound 10 were estimated by means of 1H and 13C NMR spectroscopy, and were in accord with the results of X-ray diffraction measurements, which also provided bond lengths, and valence, torsion, and dihedral angles
替他唑并[1,5- a ]喹喔啉-5-氧化物4与β-二酮和β-酮酯的碳负离子反应,分别得到烯氨基酮和烯氨基酯。所述Ñ氧化物4种发生反应与在类似条件下3-甲基和3-乙基戊烷-2,4-二酮,得到aziridinotetrazoloquinoxaline的衍生物的外消旋混合物10和11。通过1 H和13估算它们的结构以及化合物10的氮丙啶环上氢原子和甲基的反式构型1 H NMR光谱,并且与X射线衍射测量的结果一致,该X射线衍射测量还提供了键长,以及化合价,扭转和二面角。