Copper complex catalyzed asymmetric monosulfonylation of meso-vic-diols
摘要:
A symmetric desymmetrization of meso-vic-diols was performed by tosylation in the presence of copper(II) triflate and (R,R)-Ph-BOX as a catalyst. The method was successfully applied to asymmetric desymmetrization of cyclic and acyclic meso-vic-diols in high enantioselectivity with up to >99% ee. (C) 2007 Elsevier Ltd. All rights reserved.
Copper complex catalyzed asymmetric monosulfonylation of meso-vic-diols
摘要:
A symmetric desymmetrization of meso-vic-diols was performed by tosylation in the presence of copper(II) triflate and (R,R)-Ph-BOX as a catalyst. The method was successfully applied to asymmetric desymmetrization of cyclic and acyclic meso-vic-diols in high enantioselectivity with up to >99% ee. (C) 2007 Elsevier Ltd. All rights reserved.
Chiral benzazaboroles as catalysts for enantioselective sulfonylation of <i>cis</i>-1,2-diols
作者:Satoru Kuwano、Yusei Hosaka、Takayoshi Arai
DOI:10.1039/c8ob03205j
日期:——
A newly developed benzazaborole smoothly catalyzed the enantioselective sulfonylation of cis-1,2-diols. Using a chiral benzazaborole/NMI co-catalyst system, various sulfonate esters were prepared in high yields with good enantioselectivities.