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The reaction of imidazo[1,5-a]pyridines with ninhydrin revisited
Zeitschrift für Naturforschung B ( IF 0.8 ) Pub Date : 2020-08-27 , DOI: 10.1515/znb-2020-0027
Mustafa M. El-Abadelah 1 , Firas F. Awwadi 1 , Ahmad H. Abdullah 1 , Wolfgang Voelter 2
Affiliation  

Abstract The synthesis of 2,2′-(Imidazo[1,5-a]pyridine-1,3-diyl)bis(2-hydroxy-1H-indene-1,3(2H)-dione) (11) is achieved by reaction of imidazo[1,5-a]pyridine (7) with two equivalents of ninhydrin (1) at room temperature. The structure of this new 1,3-bis-adduct 11 is evidenced from HRMS and NMR spectral data and confirmed by single-crystal X-ray crystallography. Employment of equimolar amounts of 1 and 7 gave a separable mixture of the respective 1- and 3-monomeric adducts (9, 10).

中文翻译:

咪唑并[1,5-a]吡啶与茚三酮的反应

摘要 合成了 2,2'-(Imidazo[1,5-a]pyridine-1,3-diyl)bis(2-hydroxy-1H-indene-1,3(2H)-dione) (11)通过咪唑并[1,5-a]吡啶(7)与两当量茚三酮(1)在室温下反应。这种新的 1,3-双加合物 11 的结构由 HRMS 和 NMR 光谱数据证明,并由单晶 X 射线晶体学证实。使用等摩尔量的 1 和 7 得到各自的 1- 和 3- 单体加合物(9、10)的可分离混合物。
更新日期:2020-08-27
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