Phenacyl esters of acetic acid derivatives and their application for the synthesis of 2-oxo-4-phenyl-5-(phenylhydrazono)-2,5-dihydro-furan-3-derivatives
✍ Scribed by Jan Hlaváč; Pavel Hradil; Radek Mělnický; Lubomír Kvapil; Petr Šlézar; Martin Grepl——; Pavel Hradil; Antonín Lyčka; Martin Grepl
- Publisher
- Journal of Heterocyclic Chemistry
- Year
- 2008
- Tongue
- English
- Weight
- 437 KB
- Volume
- 45
- Category
- Article
- ISSN
- 0022-152X
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✦ Synopsis
Abstract
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Coupling of various substituted phenacyl acetates 1 and diazonium salts 3 was studied. If the phenacyl acetates were substituted by an electronaceptor group such as CN or COOEt 3‐substituted phenyl‐5‐(phenyl‐hydrazono)‐5__H__‐furan‐2‐ones 4 were formed. Also synthesis of aza and diaza analogs is described. The compounds were characterized using MS and NMR spectroscopy.
📜 SIMILAR VOLUMES
## Abstract An unexpected compound (5‐amino‐4‐cyano‐2,3‐dihydrofuran‐2,3‐disulfonic acid disodium salt, **4**) was isolated from the reaction of glyoxale bis hydrogen sulfite disodium salt with malononitrile. Its structure was undoubtly identified through crystal structure analysis. Compound **4**