Xie, Xin published the artcileAsymmetric synthesis of a structurally and stereochemically complex spirooxindole pyran scaffold through an organocatalytic multicomponent cascade reaction, SDS of cas: 4230-93-7, the publication is Chemical Communications (Cambridge, United Kingdom) (2012), 48(85), 10487-10489, database is CAplus and MEDLINE.
A novel and convenient organocatalytic tandem reaction has been developed for the asym. assembly of saturated aldehydes (or enals), nitroolefins and isatins to produce six-membered oxa-spirooxindole backbones bearing four contiguous stereogenic centers and multiple functional groups with high stereoselectivity, e.g. I.
Chemical Communications (Cambridge, United Kingdom) published new progress about 4230-93-7. 4230-93-7 belongs to catalysis-chemistry, auxiliary class Alkenyl,Nitro Compound,Benzene,Ether, name is 1,2-Dimethoxy-4-(2-nitrovinyl)benzene, and the molecular formula is C6H5BN2O3, SDS of cas: 4230-93-7.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia