Heterocyclic bismuth(<scp>iii</scp>) compounds with transannular N→Bi interactions as catalysts for the oxidation of thiophenol to diphenyldisulfide
作者:Ana M. Toma、Ciprian I. Raţ、Octavian D. Pavel、Christopher Hardacre、Tobias Rüffer、Heinrich Lang、Michael Mehring、Anca Silvestru、Vasile I. Pârvulescu
DOI:10.1039/c7cy00521k
日期:——
The reactions between the diorganobismuth(III) bromides [RCH2N(CH2C6H4)2]BiBr [R = C6H5 (1), C6H5CH2 (2)] and appropriate silver salts resulted in new diorganobismuth(III) compounds of the general formula [RCH2N(CH2C6H4)2]BiX [R = C6H5, X = ONO2 (3), OSO2CF3 (4), OSO2C6H4 (CHCH2)-4 (5); R = C6H5CH2, X = ONO2 (6)], based on a butterfly-like tetrahydro-dibenzo[c,f][1,5]azabismocine heterocyclic framework
溴化二有机铋(III)[RCH2N(CH2C6H4)2] BiBr [R = C6H5(1),C6H5CH2(2)]与适当的银盐之间的反应生成新的通式[RCH2N(CH2C6H4)的二有机铋(III)化合物)2] BiX [R = C6H5,X = ONO2(3),OSO2CF3(4),OSO2C6H4(CHCH2)-4(5); R = C6H5CH2,X = ONO2(6)],基于蝴蝶状的四氢-二苯并[c,f] [1,5]氮杂双嘧啶杂环骨架。该新物质在溶液中通过1H,13C H}和19F H} NMR进行结构表征,并在固体状态下通过IR光谱和单晶X射线衍射进行表征。氮原子在分子内与铋配位,因此产生12-Bi-5型(3和6)和10-Bi-4型(4和5)的超配位物种。此外,化合物4表示铋∙∙∙ππ芳烃,化合物3和6铋·∙∙∙氧之间的分子间相互作用,因此导致固态的二聚体。在低于100°C的