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Indolizines, Triazolo[4,3-a]pyridines, Benzimidazo[1,2-d]oxadiazoles, and Pyrazolo[1,5-c]triazoles via Nitrogen and Sulfur Ylides.

✍ Scribed by Kamal M. Dawood

Book ID
101969837
Publisher
John Wiley and Sons
Year
2005
Weight
24 KB
Volume
36
Category
Article
ISSN
0931-7597

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Indolizines, triazolo[4,3-a]pyridines, b
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✍ Kamal M. Dawood 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 English ⚖ 86 KB

## Abstract The pyridinium salts **2a,b** reacted with dimethyl acetylenedicarboxylate (DMAD) to give the indolizine derivatives **6a,b**. Pyridinium salts **2a,b** also reacted with pyrazole‐5‐diazonium salt to afford the hydrazonoyl bromides **8a,b**, which on treatment with aqueous ethanolic sod

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## Abstract magnified image __E__‐3‐(__N,N__‐Dimethylamino)‐1‐(3‐methylthiazolo[3,2‐__a__]benzimidazol‐2‐yl)prop‐2‐en‐1‐one (**2**) was synthesized by the reaction of 1‐(3‐methylthiazolo[3,2‐__a__]benzimidazol‐2‐yl)ethanone (**1**) with dimethylformamide‐dimethylacetal. The reaction of **2** with