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All articles of this category HBF 4 catalyzed Mannich-type reactions of aldehydes, amines, and silyl enolates took place smoothly in water in the presence of a surfactant to afford β-amino carbonyl compounds in high yields. Mannich-type raction - water - HBF 4 - surfactant - aldimine
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Akiyama et al. (1999) studied this question.
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