Bulletin of the Chemical Society of Japan p. 2438 - 2440 (1990)
Update date:2022-08-05
Topics:
Okamoto, Yoshiki
Kokubo, Ichiro
Takamuku, Setsuo
Upon UV-irradiation, the C-P bond of (4-pyridylmethyl)phosphonic acid cleaved only near the isoelectronic point to give 4-methylpyridinium phophate, while (1-benzyl-4-pyridiniomethyl)phosphonic acid underwent C-P bond cleavage above pH 4 to give 1-benzyl-4-methylpyridinium phosphate.On the other hand, the C-P bond of (2-pyridylmethyl)phosphonic acid cleaved under pH region of about 1 to 2, while (1-benzyl-2-pyridiniomethyl)phosphonic acid underwent C-P bond cleavage above pH4.
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