Electronic tuning cyclization of aryl-1,4-enediones: AlCl3-mediated Nazarov-type cyclization to synthesize polysubstituted-1-indanones
摘要:
An electronic tuning Nazarov-type cyclization protocol was proposed for the synthesis of polysubstituted-1-indanones from the readily available starting materials 1,4-enediones. AlCl3 was highlighted as the most efficient promoter for this reaction. (C) 2014 Elsevier Ltd. All rights reserved.
Efficient synthesis of isochromanones and isoquinolines via Yb(OTf)3-catalyzed tandem oxirane/aziridine ring opening/Friedel–Crafts cyclization
作者:Lai Wei、Junliang Zhang
DOI:10.1039/c2cc17836b
日期:——
The first example of Yb(OTf)(3)-catalyzed tandem ring opening/Friedel-Crafts cyclization of oxiranyl and aziridinyl ketones via selective C-C bond cleavage under mild conditions was developed. Isochromanones and isoquinolines are formed in reasonable yields, which often serve as building blocks for complex chemical synthesis.