Song, Liping published the artcileFluorine-containing furan derivatives from the Michael addition of ethyl 4,4,4-trifluoro-3-oxobutanoate with ¦Â-nitrostyrenes, Product Details of C10H11NO4, the publication is Synlett (2010), 830-834, database is CAplus.
Et 4,4,4-trifluoro-3-oxobutanoate reacted with nitrostyrenes in the presence of Et3N to afford Et 5-(hydroxyimino)-4-aryl-2-(trifluoromethyl)-2,5-dihydrofuran-3-carboxylates along with a small amount of Et 2-hydroxy-5-imino-4-aryl-2-(trifluoromethyl)-2,5-dihydrofuran-3-carboxylates, e.g., I. Treatment of Et 5-(hydroxyimino)-4-aryl-2-(trifluoromethyl)-2,5-dihydrofuran-3-carboxylates with 1.2 equiv of TsOH in t-BuOH, afforded Et 2-hydroxy-5-imino-4-aryl-2-(trifluoromethyl)-2,5-dihydrofuran-3-carboxylates in good yields. However, Et 2-ethoxy or 2-methoxy-5-oxo-4-aryl-2-(trifluoromethyl)-2,5-dihydrofuran-3-carboxylates were obtained as major products in EtOH or MeOH along with a small amount of Et 2-hydroxy-5-imino-4-aryl-2-(trifluoromethyl)-2,5-dihydrofuran-3-carboxylates.
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 C14H31NO2, Product Details of C10H11NO4.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia