Thionyl 2676960 118884227 2007-03-29T21:43:07Z Benjah-bmm27 126395 recategorised [[Image:Thionyl-group.png|thumb|150px|right|The structure of the thionyl group]] The '''thionyl''' group is SO, a [[sulfur]] atom plus an [[oxygen]] atom. It occurs in compounds such as [[thionyl fluoride]], SOF<sub>2</sub>. [[Thionyl chloride]], SOCl<sub>2</sub>, is a common reagent used in [[organic synthesis]] to convert [[carboxylic acid]]s to [[acyl chloride]]s. In [[organic chemistry]], the thionyl group is known as a [[sulfoxide|sulfoxide group]], and has the general structure RS(=O)R'. ==References== {{Greenwood&Earnshaw}} [[Category:Thionyl compounds]] {{chem-stub}}