ETHYL 2-METHYL-5-PHENYL-3-FURANCARBOXYLATE

Data for ethyl 2-methyl 5-phenyl-3-furancarboxylate are as follows Rf < ... 

Ethyl 2-methyl-5-phenyl-3-furancarboxylate 3-Furoic acid, 2-methyl-5-phenyl-, ethyl ester (8) 3-Furancarboxylic acid, 2-methyl-5-phenyl-, ethyl ester (9) (29113-64-2)... 

SYNTHESIS OF FURANS VIA RHODIUM(II) ACETATE-CATALYZED REACTION OF ACETYLENES WITH a-DIAZOCARBONYLS ETHYL 2-METHYL-5-PHENYL-3-FURANCARBOXYLATE (3-Furancarboxyllc acid, 2-methyl-5-phenyl>, ethyl ester)... 

C. Ethyl 2-methyl-5-phenyl-3-furancarboxylate.4 A 1 -L, three-necked, round-bottomed flask equipped with a magnetic stirrer, an addition funnel, and a reflux condenser is flushed with argon (Note 7). The reaction vessel is charged with 44.35 g of phenylacetylene (0.44 mol, Note 8), 0.38 g of rhodium(ll) acetate dimer (0.00087 mol), and 100 mL of dichloromethane and the mixture is heated to reflux under an argon atmosphere. The addition funnel is charged with 13.57 g of ethyl diazoacetoacetate (0.087 mol) and 200 mL of dichloromethane, and this solution is... 

Carboxylic esters, usually methyl or ethyl esters, can be converted into trifluoromethyl compounds by reaction with sulfur tetrafluoride in the presence of an excess of hydrogen fluoride. In comparison to carboxylic acids more vigorous conditions are needed." Substitution of the ester group carbonyl oxygen is observed with fluoroalkyP or phenyl esters " of polyfluorocarboxylic acids, fluorine-containing a-oxo esters,fluorine-containing a- and j -hydroxy esters, " and furancarboxylic esters. ... 

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