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A combination of sodium borohydride and a catalytic amount of indium(III) chloride in acetonitrile reduces imines formed in‐situ from aldehydes and amines to the corresponding functionalised secondary and tertiary amines in moderate to good yields. Noteworthy is that highly chemoselective reactions were achieved in the presence of other functional groups such as halogens, carbon‐carbon double bonds and hydroxyl groups.
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Varala et al. (2006) studied this question.
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