Studies on quinolizine derivatives. XV. Synthesis of azacycl(3,3,3)azine derivatives.
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Abstract
From the reaction of 4-imino-6-methyl-4H-quinolizine derivatives (I) with acid anhydrides (glutaric anhydride and crotonic anhydride), the corresponding 1-azacycl-[3, 3, 3]azine derivatives (V, VI) were obtained. 1-Aza-5-oxo-2, 3, 4, 5-tetrahydrobenzo[b]cycl[3, 3, 3]azine (X) was yielded, as a stable free base, by the decarboxylation of VI. On the other hand, 2-methyl and 2, 5-dimethyl-1-azacycl[3, 3, 3]azine (XVIa, b), which were very unstable free bases, were prepared by the degradation of II and IV. These nuclear magnetic resonance spectral data of XVIa and XVIb may be interpreted in term of a paramagnetic ring current.
Journal
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- Chemical and Pharmaceutical Bulletin
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Chemical and Pharmaceutical Bulletin 23 (11), 2759-2766, 1975
The Pharmaceutical Society of Japan
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Details 詳細情報について
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- CRID
- 1390282679139143424
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- NII Article ID
- 110003621766
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- NII Book ID
- AA00602100
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- COI
- 1:CAS:528:DyaE28XlvFekuw%3D%3D
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- ISSN
- 13475223
- 00092363
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- Text Lang
- en
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed