Synthesis and Basicity of 4-Amino-2-phenylquinazolines
✍ Scribed by Wojciech Zieliński; Agnieszka Kudelko
- Publisher
- Springer Vienna
- Year
- 2000
- Tongue
- English
- Weight
- 88 KB
- Volume
- 131
- Category
- Article
- ISSN
- 0026-9247
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## Abstract A group of 2‐(__N,N__‐diethylamino)‐4‐aminoquinazoline derivatives have been synthesized in the reaction of __N__^1^,__N__^1^‐diethyl‐__N__^2^‐arylchlorocarboxyamidines with cyanamide in the presence of T1Cl~4~ as a catalyst. Such quinazolines decompose into the corresponding quinazolon
## Abstract For Abstract see ChemInform Abstract in Full Text.
## Abstract The model morpholine‐1‐carbothioic acid (2‐phenyl‐3__H__‐quinazolin‐4‐ylidene) amide (1) reacts with phenacyl bromides to afford __N__^4^‐(5‐aryl‐1,3‐oxathiol‐2‐yliden)‐2‐phenylquinazolin‐4‐amines (4) or __N__^4^‐(4,5‐diphenyl‐1,3‐oxathiol‐2‐yliden)‐2‐phenyl‐4‐aminoquinazoline (**5**) b