Conformational stability of 2-ethylthio-1-(5-methylthiophen-2-YL)ethanone and 2-ethylthio-1-(5-methylfuran-2-YL)ethanone - Rodrigues, Daniel Nopper Silva; Olivato, Paulo Roberto; Foliene, Denis Alan N (International Symposium on the Organic Chemistry of Sulfur, 2012)