## Abstract 1‐Methoxy‐1,1,4‐triphenyl‐2‐butin‐4‐on bildet mit Desoxybenzoin und 2‐Aminophenol an der Dreifachbindung Additionsprodukte. Diese reagieren unter sauren Bedingungen mit ihrer Methoxy‐diphenylmethyl‐Gruppe zu Derivaten des 2,3‐Dihydrofurans oder 3,4‐Dihydro‐2__H__‐1,4‐benzoxazins.
Ringschlußreaktionen mit 2-Hydrazino-pyridin, II. Synthese 3-substituierters-Triazolo[4.3-a]pyridine
✍ Scribed by Kauffmann, Thomas ;Vogt, Karl ;Barck, Siglinde ;Schulz, Jutta
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1966
- Tongue
- English
- Weight
- 363 KB
- Volume
- 99
- Category
- Article
- ISSN
- 0009-2940
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📜 SIMILAR VOLUMES
## Abstract A new route for the synthesis of 3H‐1,2,4‐triazolo[1,5‐a]pyridines 7a–j, 12a,b, and 17a,b utilizing the reaction of the hydrazones of cyanoethanoic acid hydrazide 3a,b with ylidene malononitriles 2a–e, malononitrile, and 3‐aminocrotononitrile is described.
Reactions of 1,3‐Dipoles with Heterocycles, 8. — Synthesis of 1,8a‐Dihydro[1,2,4]triazolo[4,3‐__a__]pyridines and Benzologues The C,N double bond of pyridine, quinoline and isoquinoline as heterodipolarophile react with diarylnitrilimines 2, generated in situ by dehydrohalogenation of __N__‐phenylb