Synthesis of Thioxanthones through Formal C–H Thiolation of Benzoic Acid Esters and Acid-mediated Direct Cyclization
作者:Kotaro Mutsuura、Yuki Sakata、Keisuke Uchida、Takamitsu Hosoya、Suguru Yoshida
DOI:10.1246/cl.200190
日期:2020.7.5
An efficient thioxanthone synthesis from benzoic acid esters is disclosed. Various thioxanthones were prepared by iridium-catalyzed C–H borylation of benzoic acid esters followed by copper-catalyze...
Transformation of 5,8-Dimethyl-1-Tetralone: Synthesis of Ar-Occidol
作者:Ajoy K. Banerjee、Willam J. Vera、Elvia V. Cabrera、Jennifer L. Sanchez
DOI:10.3184/030823410x12724713859947
日期:2010.5
borohydride in methanol followed by methylation of the resulting alcohol with methyliodide and sodium hydride yielded a methyl ether. This was oxidised with potassium permanganate and acetonitrile to give 4-methoxy-5,8-dimethyle-1-tetralone. Methoxycarbonylation of the ketone with dimethylcarbonate (DMC) in the presence of sodium hydride in dimethoxyethane (DME) afforded β-ketoester 5 which on heating with