aldehydes and ketones cyanohydrin formation add to carbonyl groups noted earlier Aldehydes and Ketones chemistry.msu.edu Michigan State University: Aldehydes and Ketones Michigan State University: Aldehídos y cetonas chemistry.msu.edu described thioacetal addition of organometallic reagents to aldehydes, ketones addition of organometallic reagents to aldehydes, ketones noted earlier has been noted noted earlier chemistry.msu.edu aldehydes and ketones chemistry.msu.edu described overview of ketones and aldehydes