Add time:08/29/2019         Source:sciencedirect.com

The addition of Et2AlCN in the presence of ZnBr2 or Et2AlCl to 1,3-dicarbonyl compounds derived from (S)-4-isopropyl-2-oxazolidinone, proceeds with high diastereoselectivity (94–98% de) and good chemical yields. This type of addition to chiral β-dicarbonyl substrates represents a new synthetic methodology leading to the formation of enantiomerically pure cyanohydrins.

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