74617-03-1Relevant articles and documents
New Synthesis with Elemental Sulfur. - Preparation of 1,2-Benzisothiazoles and Some Secondary Reactions
Markert, Juergen,Hagen, Helmut
, p. 768 - 778 (2007/10/02)
The preparation of new 1,2-benzisothiazoles 2,3,5 and of thienoisothiazole 4 is described.The thioethers 8 have been obtained from 2 and 3 by ring opening with alcoholate and reaction with halomethyl compounds.On cyclisation, the thioethers 8 give the thionaphthenes 11.The ring systems of thionaphthenopyrimidines 10 and 12 have been prepared from 11.