Abshact: A new method for the preparation of benzo[b]indolizidines and benzo[b]qumolizidines based on two reactions: an amine induced ring-opening of 3-bromo-2. 5-dimethylthiophene-I, l-dioxide (1) with 2allyl-pyrrolidine (2). 2-allylpiperidine (3), 2.[2-(1',3'-dithiolan)methyl]pyrrolidine (4) and 2
Synthesis and stereochemical study of cis- and trans-1-(3′-substituted-propyl)benzo[a]quinolizidine
✍ Scribed by Jenõ Kóbor; Pál Sohár; Ferenc Fülöp
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- French
- Weight
- 902 KB
- Volume
- 50
- Category
- Article
- ISSN
- 0040-4020
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✦ Synopsis
AbstracL -From I-methyl-6,7-dimetlzq-3,4_dihydroisoquinoline widt methyl or efhyl aqiate or with acrylonitile, via Michael addition products, cis-and trans-l-(3'-substi~ted-propyl)benw[a]~it~oIi~idinotaes and quinokidines were prepared. 77le relative configurations and the predominant conformations were determined by means of 1H and 13C NMR spectroscopy, with the application of DR, DNOE and 20 HSC measurements.
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