Mechanochemical Solvent-Free Synthesis of Indenones from Aromatic Carboxylic Acids and Alkynes
作者:Liang Li、Guan-Wu Wang
DOI:10.1021/acs.joc.1c01472
日期:2021.10.15
solvent-free synthesis of indenones from aromatic carboxylicacids and alkynes was achieved through triflic anhydride (Tf2O)-induced cyclization reaction. A variety of indenones including a bioactive PPARγ agonist were obtained in up to 90% yield at room temperature. The present protocol has the advantages of mild reaction conditions, high reaction efficiency, and feasibility of scalable synthesis, providing
MeOTf-induced carboannulation of arylnitriles and aromatic alkynes: a new metal-free strategy to construct indenones
作者:Xiaoyu Yan、Song Zou、Peng Zhao、Chanjuan Xi
DOI:10.1039/c4cc00088a
日期:——
MeOTf-induced carboannulation of arylnitriles and aromatic alkynes for synthesis of indenones under metal-free conditions has been described. When ortho-substitutedbenzonitriles were used, indeno[1,2-c]isoquinolines were formed.
An efficient protocol for the synthesis of indenones has been developed from the annulation of benzoic esters and internal alkynes by exploiting cobalt catalyst.
通过利用钴催化剂,通过苯甲酸酯和内部炔烃的环化,已经开发出一种有效的合成茚满的方案。
Ferrocene-Initiated Oxidative Cyclization of Benzaldehyde with Alkyne: New Strategy to Substituted Indenones
作者:Yadong Feng、Hong Zhang、Yunliang Yu、Lei Yang、Xiuling Cui
DOI:10.1002/ejoc.201900281
日期:2019.4.30
A ferrocene‐initiated oxidativecyclization of benzaldehyde with alkyne was successfully developed as a novel strategy for the direct access to substituted indenones in high yields. The commercially available and cheap ferrocene was employed as an initiator.