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Acyloxyalkane phosphonate and phosphinate esters prepn - from acyloxyalkenes and phosphonate or phosphinate esters using high-energ
Acyloxyalkane phosphonate and phosphinate esters prepn - from acyloxyalkenes and phosphonate or phosphinate esters using high-energ
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机译:使用高能从酰氧基烯烃和膦酸酯或次膦酸酯制备酰氧基烷膦酸酯和次膦酸酯
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摘要
Cpds. of formula (I): (where R1, R3 and R4 are 1 - 18C alkyl; R2 is H or 1 - 18C alkyl; x and y are 0 or 1) are prepd. by adding R1COO(CH2)xCHR2-CH2 onto a cpd. (II): at 130 - 250 degrees C (pref. 150 - 200 degrees C) under the action of high-energy radiation, pref. gamma- or X-rays or accelerated (0.5 - 4 MeV) electrons. Yields of 80 - 90% are obtd. Cpds. (I) are intermediates for plant-protection agents, ripening accelerators and flameproofing agents.
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