Sulfamic Acid‐Catalyzed Thioacetalization of Aldehydes under Solvent and Metal‐Free Conditions

The use of ultrasound in the South Cone region. Advances in organic and inorganic synthesis and in analytical methods

In organic and inorganic synthesis and in analytical methods, an external conventional heat source is usually applied to carry out a chemical reaction at a high temperature, or an extraction procedure. In the last decades, the use of ultrasound as an alternative energy source has become an interesting field of research in these topics in the South Cone region (Argentina, Chile, Uruguay, Southern Brazil and Paraguay). For this reason, the present review, covering the period 2009 to mid-2021, is a compilation of ultrasound-assisted synthetic and analytical methodologies.

Copper-catalyzed thioketalization of enones featuring trifluoromethyl groups

24 new thioketals featuring trifluoromethyl groups were synthesized via a new copper-catalyzed method.