Reaction between N-acyl-2,3-dihydrobenzo-1,4-thiazine and N-acylphenothiazine with organometallic reagents
✍ Scribed by Francesco Ciminale; Leonardo Di Nunno; Saverio Florio
- Book ID
- 107858265
- Publisher
- Elsevier Science
- Year
- 1980
- Tongue
- French
- Weight
- 142 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0040-4039
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📜 SIMILAR VOLUMES
The redction of N,N -dimethyl-2-nitroethene-I,l-diamine (8) with cc,j-unsaturdted dcyl ISOthiOCydndteS 9 dffords 3,3-diamino-2-nitroacrylthioamides 10 (Scheme 2) in moderate-to-good yields Cyclization of 10 under acidic conditions gives 1,3-thiazin-4-one derivatives of type 11 Oxiddtive cyclization
## Abstract Easily accessible N^2^‐acyl derivatives of 2‐aryl‐5‐hydrazino‐1,3‐oxazole‐4‐carbonitriles react peculiarly with the Lawesson reagent. In addition to thionation, the reaction involves a recyclization to afford new substituted 2‐(5‐amino‐1,3‐thiazol‐4‐yl)‐1,3,4‐thiadiazoles. Their structu