An operationally simple protocol is reported to generate an α-hydroxyacyl anion by the decarboxylation of dihydroxyfumaricacid. To date, the “missing” utilization of the hydroxyacyl anion in highly chemo- and stereoselective cascade reactions enables short and direct construction of carbohydrates.
α,α′-Dihydroxyketone formation using aromatic and heteroaromatic aldehydes with evolved transketolase enzymes
作者:James L. Galman、David Steadman、Sarah Bacon、Phattaraporn Morris、Mark E. B. Smith、John M. Ward、Paul A. Dalby、Helen C. Hailes
DOI:10.1039/c0cc02911d
日期:——
Transketolase mutants have been identified that accept aromatic acceptors with good stereoselectivities, in particular benzaldehyde for which the wild type enzyme showed no activity.