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Pinacolborane

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The reduction of ketones with pinacolborane is catalyzed by NaOt-Bu at ambient temperature. The reaction is high yielding and general, providing complete conversion of aryl and dialkyl ketones. The active hydride source is the trialkoxyborohydride, which is believed to be present in low concentration under the reaction conditions.
I. P. Query, P. A. Squier, E. M. Larson, N. A. Isley, T. B. Clark, J. Org. Chem., 2011, 76, 6452-6456.


Homoleptic cyclopentadienyl lanthanide complexes are excellent catalysts for the hydroboration of various aldehydes and ketones with pinacolborane. These robust lanthanide catalysts exhibited high reactivity with low catalyst loadings under mild conditions, good functional group tolerability, and unique carbonyl-selectivity.
S. Chen, D. Yan, M. Xue, Y. Hong, Y. Yao, Q. Shen, Org. Lett., 2017, 19, 3382-3385.


A simple [Ru(p-cymene)Cl2]2 complex is used as a catalyst precursor in a catalyzed hydroboration of nitriles and imines using pinacolborane with unprecedented catalytic efficiency.
A. Kaithal, B. Chatterjee, C. Gunanathan, J. Org. Chem., 2016, 81, 11153-11161.


A simple [Ru(p-cymene)Cl2]2 complex is used as a catalyst precursor in a catalyzed hydroboration of nitriles and imines using pinacolborane with unprecedented catalytic efficiency.
A. Kaithal, B. Chatterjee, C. Gunanathan, J. Org. Chem., 2016, 81, 11153-11161.