α-Amino-sulphonic acid derivatives. Part II. Synthesis and ring closure of some iodomethylsulphonyl-benzamidines and -guanidines
- 1 January 1970
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society C: Organic
- No. 10,p. 1429-1433
- https://doi.org/10.1039/j39700001429
Abstract
The synthesis of a representative number of N(1)-substituted N(2)-iodomethylsulphonylbenzamidines is reported, together with the new general synthesis of N(1)N(3)-disubstituted N(2)-sulphonylguanidines by the interaction of sulphonamides and carbodi-imides in the presence of base. The base-induced ring closure of these iodomethylsulphonyl compounds has been shown to provide a route to 3-aryl- and 3-arylamino-4-aryl-and-alkyl-Δ2-1,2,4-thiadiazoline 1,1-dioxides.Keywords
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