Xie, Xin published the artcileAsymmetric Synthesis of Oxa-spirocyclic Indanones with Structural Complexity via an Organocatalytic Michael-Henry-Acetalization Cascade, Formula: C10H11NO4, the publication is Synlett (2014), 25(1), 143-147, database is CAplus.
The highly enantioselective preparation of drug-like oxa-spirocyclic indanone derivatives employing a multicomponent cascade reaction of aldehydes, nitro alkenes, and ninhydrin is described. This approach utilizes an organocatalytic Michael reaction followed by a Henry-acetalization sequence that yields the desired chiral spirocyclic backbone, bearing four contiguous stereogenic centers and multiple functional groups, in good yields and high stereoselectivities (up to 99% ee and 95:5 dr).
Synlett 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 C12H16O3, Formula: C10H11NO4.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia