25538-71-0Relevant academic research and scientific papers
New synthesis of tetrahydro-1,4-thiazine-3-ones from 1,2- aminopropanethiols and α-chlorocarboxylic acids
Magerramov,Allakhverdiev,Akhmedova,Caple,Zhdankin
, p. 721 - 728 (2007/10/03)
Tetrahydro-1,4-thiazine-3-ones 5 can be efficiently prepared by the condensation of 1,2-aminopropanethiols 1 and sodium chlorocarboxylates 4 under basic conditions.
Syntheses de β-sultames (thiazetidines-1,2 dioxyde-1,1)
Champseix, A.,Chanet, J.,Etienne, A.,Berre, A. Lemasson, J. C.,Napierala, C.,Vessiere, R.
, p. 463 - 472 (2007/10/02)
β-sultams (1,2-thiazetidine-1,1-dioxides) are easily prepared by 1-halogensulphonyl-2-aminoalkane cyclisation. Two processes based upon this principle have permitted the preparation of many variously N and C-substituted β-sultams. 1) In the first method 1-chlorosulphonyl-2-aminoalkane hydrochlorides, prepared from taurines or β-aminothiols, cyclised in the presence of base. 2) The second process involves the spontaneous cyclisation of 1-fluorosulphonyl-2-aminoalkanes prepared Michael addition of primary amines to 1-fluorosulphonylethene.
