A novel protocol for Rh(III)-catalyzed switchable C–H acylmethylation and annulation of 2,2′-bipyridine derivatives with sulfoxonium ylides is reported. This protocol provides a facile approach to synthesize structurally diverse acylmethylated 2,2′-bipyridine derivatives and acyl pyrido[2,3-a]indolizines with a broad range of functional group tolerance.
报道了一种用于 Rh( III ) 催化的可切换 C-H 酰基甲基化和 2,2'-联吡啶衍生物与氧化鎓叶立德的环化的新方案。该协议提供了一种简便的方法来合成结构多样的酰基甲基化 2,2'-联吡啶衍生物和酰基吡啶并[2,3- a ] 中氮茚,并具有广泛的官能团耐受性。
Recognition mediated encapsulation and isolation of flavin–polymer conjugates using dendritic guest moieties
作者:Chandramouleeswaran Subramani、Gulen Yesilbag、Brian J. Jordan、Xiaoning Li、Abraham Khorasani、Graeme Cooke、Amitav Sanyal、Vincent M. Rotello
DOI:10.1039/b926746h
日期:——
Diaminopyridine dendritic scaffolds encapsulate polymeric flavin via non-covalent interactions and demonstrate isolation of the redox moiety.