５‐トリフルオロメチル‐２，２，２，３‐テトラヒドロ‐１，３，４，２‐オキサジアザホスホール誘導体の合成とその構造

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タイトル別名
  • Syntheses and structural studies of 5-trifluoromethyl-2,2,2,3-tetrahydro-1,3,4,2-oxadiazaphospholes.
  • 5 トリフルオロメチル 2,2,2,3 テトラヒドロ 1,3,4,2 オキサジ

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The reactions of 2, 2, 2-trichloro-5-trifluoromethyl-2, 2, 2, 3-tetrahydro-1, 3, 4, 2-oxadiazaphospholes with various nucleophiles gave the novel tetrahydrooxadiazaphosphole derivatives bearing the corresponding substituents at 2-position. The reactions with 0-nucleophiles such as TMS-p-cresol afforded the 2, 2, 2-trisubstituted tetrahydrooxadiazaphospholes and, in contrast, that with N-methylaniline gave a 2, 2-disubstituted 2-chlorotetrahydrooxadiazaphosphole, and with p-anisidine, a phosphazene of tetrahydrooxadiazaphosphole was obtained. On the other hand, the trichlorotetrahydrooxadiazaphosphole was allowed to react with N'-phenyltrifluoroacetohydrazide, giving the novel spiro compound of two tetrahydrooxadiazaphosphole rings bearing phosphorus as a spiro atom. The steric configurations of thus obtained tetrahydrooxadiazaphospholes were investigated on the basis of the chemical shifts in 31P-NMR. Other spectral interpretations were also discussed.

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