Tetrabutylammonium salts serve as templates for the Norrish-Yang cyclization of 2-benzyloxy-acylbenzenes to give trans-dihydrobenzofuranols in high stereoselectivities. The dual cation-pi interactions between an ammonium with a benzene ring and a carbonyl group play a key role in changing the conformation of the substrate, which was supported by ab initio calculations.
A Novel Antifungal Agent with Broad Spectrum: 1-(4-Biphenylyl)-3-(1<i>H</i>-imidazol-1-yl)-1-propanone
作者:Gheorghe Roman、Mihai Mareş、Valentin Năstasă
DOI:10.1002/ardp.201200287
日期:2013.2
carbonyl function of the imidazole–ketones in the previous series by means of NaBH4. All of the compounds were evaluated for antifungal activity against 16 strains of Candida, and 3‐(1H‐imidazol‐1‐yl)‐1‐(4‐biphenylyl)‐1‐propanone emerged as a broad‐spectrumantifungalagent. Several 3‐(1H‐imidazol‐1‐yl)‐1‐(2′‐(substituted benzyl)oxyphenyl)‐1‐propanones were also active towards Candida kefyr.