Synthesis and reactions of 3-iodo-4H-pyran-4-ones
✍ Scribed by Mohamed Gaber Marei; Morcos Michael Mishrikey; Ibrahim El-Sayed El-Kholy
- Book ID
- 112128439
- Publisher
- Journal of Heterocyclic Chemistry
- Year
- 1986
- Tongue
- English
- Weight
- 276 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0022-152X
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📜 SIMILAR VOLUMES
Methyl 2-(benzyloxycarbonyl)amino-3-dimethylaminopropenoate (2) was prepared from methyl \(\mathrm{N}\)-(benzyloxycarbonyl)glycinate (1) and \(t\)-butoxybis(dimethylamino)methane, and used as a reagent for preparation of substituted 3-(benzyloxycarbonyl)amino-4 \(\mathrm{H}\)-quinolizin-4-ones 5 and
## Abstract 4‐Aminopyrazole‐3‐ones **4b, e, f** were prepared from pyrazole‐3‐ones **1b‐d** in a four‐step reaction sequence. Reaction of the latter with methyl __p__‐toluenesulfonate gave 1‐methylpyrazol‐3‐ones **2b‐d**. Compounds **2b‐d** were treated with aqueous nitric acid to give 4‐nitropyraz