Synthesis of 3,4-Dihydro-1,2-diazete 1,2-Dioxides based on 1,2-Bishydroxylamines and 1,2-Nitroso Oxime
✍ Scribed by Dmitrii G. Mazhukin; Leonid B. Volodarskii; Lidiya A. Tikhonova; Aleksei Ya. Tikhonov
- Book ID
- 111729372
- Publisher
- Royal Society of Chemistry
- Year
- 1992
- Tongue
- English
- Weight
- 222 KB
- Volume
- 2
- Category
- Article
- ISSN
- 0959-9436
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## Abstract A new method for the preparation of 4‐substituted 3,4‐dihydro‐1__H__‐2,1,3‐benzothiadiazine 2,2‐dioxides is described. Treatment of __t__‐butyl __N__‐phenylsulfamoylcarbamate derivatives (**1**) with different aldehydes afforded the corresponding intramolecular cyclized products **2** u
A simple method for the preparation of 4,4-disubstituted-3,4-dihydro-1H-2,1,3-benzothiadiazine 2,2dioxides is described. Treatment of N-sulfonyl ketimines 2 and 3 with different carbon nucleophiles afforded the corresponding of 4,4-disubstituted-3,4-dihydro-1H-2,1,3-benzothiadiazine 2,2-dioxides 1 i