In homogeneous catalysis, the catalyst is in the same phase as the reactant. The number of collisions between reactants and catalyst is at a maximum.In a patent, 496-41-3, name is Benzofuran-2-carboxylic acid, introducing its new discovery. Recommanded Product: Benzofuran-2-carboxylic acid
Reaction of aryl-2-hydroxypropenoic derivatives with boron tribromide
(Z)-Mono, di or trimethoxyphenyl-2-hydroxypropenoic acids 1a-d gave mixtures of (E) and (Z) mono, di or trihydroxyphenyl-2-hydroxypropenoic acids 2a-d when treated with boron tibromide. The isomerisation proceeds during the work-up and depends on the duration of the hydrolysis and the number of oxygens on the aromatic ring. When the aromatic ring was substituted with a methoxy group at the ortho position, a cyclisation occurs, and 3-hydroxycoumarins 3 and benzofuran-2-carboxylic acids 4 can be obtained. 3-Hydroxycoumarin 3a can also be obtained almost quatitatively from the reaction of methyl 3-(2-methoxyphenyl)-2,3-epoxypropanoate with boron tribromide.
We¡¯ll also look at important developments in the pharmaceutical industry because understanding organic chemistry is important in understanding health, medicine, the role of 496-41-3, and how the biochemistry of the body works.Recommanded Product: Benzofuran-2-carboxylic acid
Reference£º
Benzofuran – Wikipedia,
Benzofuran | C8H1787O – PubChem