A mild and chemoselective CALB biocatalysed synthesis of sulfoxides exploiting the dual role of AcOEt as solvent and reagent
作者:Silvia Anselmi、Siyu Liu、Seong-Heun Kim、Sarah M. Barry、Thomas S. Moody、Daniele Castagnolo
DOI:10.1039/d0ob01966f
日期:——
Sulfoxides have been synthesised from various sulfide substrates under mild conditions exploiting CALB biocatalyst in the presence of urea hydrogen peroxide and AcOEt which acts with the dual role of solvent and reagent.
Treatment of phosphines, phosphites, or sulfides with trialkylborane under air afforded the corresponding oxides in good yields.
在空气中用三烷基硼烷处理膦、亚磷酸酯或硫化物,以良好的产率得到相应的氧化物。
Discovery and Rational Mutagenesis of Methionine Sulfoxide Reductase Biocatalysts To Expand the Substrate Scope of the Kinetic Resolution of Chiral Sulfoxides
作者:Silvia Anselmi、Alexandra T. P. Carvalho、Angela Serrano-Sanchez、Jose L. Ortega-Roldan、Jill Caswell、Iman Omar、Gustavo Perez-Ortiz、Sarah M. Barry、Thomas S. Moody、Daniele Castagnolo
DOI:10.1021/acscatal.3c00372
日期:——
enzymes has been designed via rational mutagenesis utilizing in silico docking, molecular dynamics, and structural nuclear magneticresonance (NMR) studies. The mutant enzyme MsrA33 was found to catalyze the kinetic resolution of bulky sulfoxide substrates bearing non-methyl substituents on the sulfur atom with ees up to 99%, overcoming a significant limitation of the currently available MsrA biocatalysts