127745-68-0Relevant articles and documents
Potassium tert-Butoxide-Mediated Condensation Cascade Reaction: Transition Metal-Free Synthesis of Multisubstituted Aryl Indoles and Benzofurans
Yang, Pengfei,Xu, Weiyan,Wang, Rongchao,Zhang, Min,Xie, Chunsong,Zeng, Xiaofei,Wang, Min
, p. 3658 - 3662 (2019/05/17)
An efficient and facile method to synthesize valuable disubstituted 2-aryl indoles and benzofurans in good yields has been demonstrated, based on a tert-butoxide-mediated condensation reaction involving a vinyl sulfoxide intermediate. Products are obtained from N- or O-benzyl benzaldehydes using dimethyl sulfoxide as a carbon source. The methodology features a wide functional group tolerance and transition metal-free environment. Preliminary mechanistic studies suggest that the reaction involves a tandem aldol reaction/Michael addition/dehydrosulfenylation/isomerization sequence through an ionic protocol.
Synthesis of O-Heterocycles via Intramolecular Reductive Deoxygenation of o-Aroyloxyacetophenones: One-step Synthesis of Benzofurans
Banerji, Asoke,Nayak, Sandip K.
, p. 150 - 151 (2007/10/02)
A one-step synthesis of benzofurans via intramolecular reductive coupling of o-aroyloxyacetophenones using titanium(IV) chloride and zinc is described.
