Synthesis of 2-Oxopyridine-Fused 1,3-Diazaheterocyclic Compounds via a Three-Component Reaction
✍ Scribed by Abdolali Alizadeh; Azadeh Mikaeili; Tahereh Firuzyar; Mahdi Ahmadi
- Publisher
- John Wiley and Sons
- Year
- 2011
- Tongue
- German
- Weight
- 148 KB
- Volume
- 94
- Category
- Article
- ISSN
- 0018-019X
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✦ Synopsis
Abstract
An efficient and simple route for the preparation of 2‐oxopyridine‐fused 1,3‐diazaheterocyclic compounds via a three component reaction is described. It involves the reaction between alkylenediamines 1, 1,1‐bis(methylsulfanyl)‐2‐nitroethene, and alkyl prop‐2‐ynoates 2 in refluxing THF (Table). The structures were corroborated by spectroscopic (IR, ^1^H‐ and ^13^C‐NMR, and EI‐MS) and elemental analyses. A plausible mechanism for this type of cyclization is proposed (Scheme).
📜 SIMILAR VOLUMES
## Abstract An efficient one‐pot synthesis of pyrido[1,2‐__a__]‐fused 1,3‐diazaheterocyclic compounds by three‐component reaction of diamine, nitroketene dithioacetal (=1,1‐bis(methylsulfanyl)‐2‐nitroethene), and electron‐poor itaconic anhydride (=2‐methylidenesuccinic anhydride=2‐methylidenebutane