A convenient, high yield preparation of Me3B on a laboratory scale from (n-BuO)3B and Me3Al2Cl3 is described. The preparation of Et3B from Al3Et and Et2O[sbnd]BF3 on a laboratory scale and from AlEt3 and KBF4 on a pilot plant scale are also given.
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Köster et al. (1973) studied this question.
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