Thioketones (also known as
thiones or
thiocarbonyls) are
organosulfur compounds related to conventional
ketones. Instead of the formula R
2C=O, thioketones have the formula R
2C=S, which is reflected by the prefix "
thio-" in the name of the functional group. Unhindered alkylthioketones typically tend to form
polymers or
rings.