Novel Pyridine and 1,4-dihydropyridine Alkaloids from Houttuynia cordata
✍ Scribed by Pröbstle, A.; Neszmelyi, A.; Jerkovich, G.; Wagner, H.; Bauer, R.
- Book ID
- 120255160
- Publisher
- Taylor and Francis Group
- Year
- 1994
- Tongue
- English
- Weight
- 397 KB
- Volume
- 4
- Category
- Article
- ISSN
- 1057-5634
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## Abstract Novel 4,7‐dihydrothieno[2,3‐__b__]pyridines 10a‐d have been prepared in a one step procedure from the readily available __o__‐chloroformyl substituted 1,4‐dihydropyridines 9a‐d and ethyl mercaptoacetate in good yields. Semiempirical calculations reveal a favoured geometry with a boat co
## Abstract magnified image An easy, safe, effective and handy method for oxidative aromatization of Hantzsch 1,4‐dihydropyridines catalyzed by hypervalent iodine (iodosobenzene) and potassium bromide to corresponding pyridine derivatives in high‐yields and within short span of time was described.