Synthesis of dibenzo[c,g]-2,5-diaza-1,6-oxido[10]annulene and 12-methyldibenz[c,g]-2-aza-1,6-oxido[10]annulene
β Scribed by Chikara Kaneko; Sachiko Yamada; Masayuki Ishikawa
- Publisher
- Elsevier Science
- Year
- 1970
- Tongue
- French
- Weight
- 244 KB
- Volume
- 11
- Category
- Article
- ISSN
- 0040-4039
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β¦ Synopsis
We have found that irradiation of 7-oxide 2, (9 or l&3) of benzo[a]phenazine and benz[a]acridine in ethanol gives rise to the title compound (2 or 2) in a
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## Abstract The structure of the title compound **2** is supported by spectra and analysis; homoaromaticity is deduced from its NMR. and electronic spectra.
## Abstract The spectral analyses and syntheses of several novel 2,10βdichloroβ6βaryloxy/alkylβ12__H__βdibenzo [__d__,__g__] [1,3,2] dioxaphosphocin 6βoxides have been achieved. Longβrange coupling [^5^__J__(H,P) = 2.4 Hz] was observed between phosphorus and the bridged methylene protons. Based upo
Syitliesis of several 6-sicbstittcted-I ,2,4,8,10.1 I -hexachloro-1 ZH-dibeiizo[d,g][l,3,2]dioxaphosphocin 6oxides and their IR. IH, I3C, and 31P N M R aizd inass spectral analyses are described. Observation of geminal coupling ['J(H,H, = 16.0 Hz] between bridged methylene protons ( 1 2-CH2) suggest