## Abstract For Abstract see ChemInform Abstract in Full Text.
A novel ring transformation: 1,2,4-oxadiazoles from pyrimidine-N-oxides
✍ Scribed by Deszö Korbonitz; Kālmān Simon; Pāl Kolonits
- Publisher
- Elsevier Science
- Year
- 1983
- Tongue
- French
- Weight
- 165 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
The reaction of isoxazolo [3,4-d]pyrimidine 1 and cyanoolefins 2 in the presence of triethylamine (Et 3 N) as a catalyst afforded an unprecedented one-pot synthesis of biologically important pyrido [2,3-d]pyrimidine oxides 3 in excellent yields.
## Abstract As a masked 1,3‐dicarbonyl compound, the 1,1‐dioxo‐__2H__‐1,2‐thiazine‐4‐carbaldehyde 1 undergoes ring transformation with amidines to produce 2‐substituted 4‐methyl‐5‐[1‐methyl‐2‐methylthio‐2‐(__N__‐phenylsulfamoyl)vinyl]pyrimidines 3a–f. For 3b, an X‐ray structure analysis is reported