Zhang, Zhiguo published the artcileEnantioselective synthesis of 2-aryl-3-nitro-2H-chromenes catalyzed by a bifunctional thiourea, Formula: C10H11NO4, the publication is Synlett (2011), 1262-1264, database is CAplus.
A bifunctional thiourea-catalyzed tandem approach of oxa-Michael-aza-Henry-desulfonamidation was used to synthesize chiral 2-aryl-3-nitro-2H-chromenes. This method provides direct access to the corresponding products in moderate to good yields and enantioselectivities.
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 C15H12O6, Formula: C10H11NO4.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia