5-Arylidene Derivatives of Meldrum′s Acid as Synthons in Pyrano[4,3-b]pyran Synthesis.
✍ Scribed by Aleksandra Palasz; Katarzyna Jelska; Monika Ozog; Pawel Serda
- Publisher
- John Wiley and Sons
- Year
- 2007
- Weight
- 23 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0931-7597
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📜 SIMILAR VOLUMES
## Abstract A series of dihydropyrazolo[3,4‐__b__]pyridin‐6‐ones 3 was prepared by cyclization of 5‐amino‐1‐aryl‐3‐methylpyrazoles 1 and Meldrum's acid benzylidene derivatives 2 in nitrobenzene. The structure of 4,5‐dihydropyrazolo[3,4‐__b__]pyridin‐6‐ones and reaction orientation were determined b
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