title: Acid-promoted reaction of trimethylsilylketene bis(ethylthio)acetal with imines. Synthesis of gamma,gamma-bis(ethylthio)allylamines.
abstract: Acid-catalyzed reaction of silylketene dithioacetal 1 with iminium salts or imines 3b,d-h gave the corresponding gamma,gamma-bis(ethylthio)allylamines 2a-h or 5b,d-h in generally high yields. Similar reactions of 1 with (salicylidene)amines 6a-e afforded 4-amino-2,2-bis(ethylthio)chromans 8a-e in good to moderate yields.
authors.affiliation: Department of Applied Chemistry, Kyushu Institute of Technology, Sensui-cho, Tobata, Kitakyushu 804-8550, Japan.
authors.forename: Shuhei
authors.initials: S
authors.lastname: Yahiro
authors.forename: Keisuke
authors.initials: K
authors.lastname: Shibata
authors.forename: Takeshi
authors.initials: T
authors.lastname: Saito
authors.forename: Tatsuo
authors.initials: T
authors.lastname: Okauchi
authors.forename: Toru
authors.initials: T
authors.lastname: Minami