Yan, Dong published the artcileSBA-15 Supported Chiral Phosphine-Gold(I) Complex: Highly Efficient and Recyclable Catalyst for Asymmetric Cycloaddition Reactions, Recommanded Product: (S)-2-Methylpropane-2-sulfinamide, the main research area is mesoporous silica supported chiral phosphine gold complex preparation; furooxazine preparation enantioselective; alkyne nitrone cycloaddition silica supported gold catalyst.
Ordered mesoporous SBA-15 supported chiral phosphine gold (I) complexes were successfully developed. The gold(I) complexes were covalently immobilized on mercaptopropyl modified silica surface through radical reaction. In this way, the chiral carbon and chiral sulfur of the homogenous catalyst were perfectly remained in situ. And thus, the prepared catalysts demonstrated highly effective asym. cycloaddition activity to afford furooxazines I [R1 = n-Pr, n-Bu, Ph; R2 = Ph; R3 = Ph, 4-MeC6H4; R4 = Ph, 4-BrC6H4], which was likely because the chiral induction effect of the Au complex was hardly influenced by this immobilization method. Moreover, they could be easily recovered by simple filtration and directly used for the subsequent catalytic runs. The prepared catalyst was highly stable and efficient without obvious activity loss after eight cycles.
ChemCatChem published new progress about Alkynes Role: RCT (Reactant), RACT (Reactant or Reagent). 343338-28-3 belongs to class amides-buliding-blocks, name is (S)-2-Methylpropane-2-sulfinamide, and the molecular formula is C4H11NOS, Recommanded Product: (S)-2-Methylpropane-2-sulfinamide.
Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics