Journal
MOLECULES
Volume 26, Issue 18, Pages -Publisher
MDPI
DOI: 10.3390/molecules26185443
Keywords
hydroboration; synthesis; aldimine; ketimine
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Recent evidence suggests that tetra-coordinate borohydride species are the true hydride donors and Me2S-BH3 can act as a hydride donor for imine reduction. This boron reagent is effective and chemoselective for a wide variety of imines.
Although there exists a variety of different catalysts for hydroboration of organic substrates such as aldehydes, ketones, imines, nitriles etc., recent evidence suggests that tetra-coordinate borohydride species, formed by activation, redistribution, or decomposition of boron reagents, are the true hydride donors. We then proposed that Me2S-BH3 could also act as a hydride donor for the reduction of various imines, as similar compounds have been observed to reduce carbonyl substrates. This boron reagent was shown to be an effective and chemoselective hydroboration reagent for a wide variety of imines.
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