General synthetic routes to β-hydroxy-acids from t-butyl esters and the Reformatskii reaction
作者:D. A. Cornforth、A. E. Opara、G. Read
DOI:10.1039/j39690002799
日期:——
modified Reformatskii procedure which leads directly to the hydroxy-acid. With highly hindered ketones or under conditions of inverse addition, self-condensation of the Reformatskii reagents from the t-butyl esters of α-bromopropionic acid and α-bromoisobutyric acid seriously reduce the yields of β-hydroxy-esters.
Reaction Of β,γ-Unsaturated Carboxylic Acids With Thallium Triacetate (Tta): Lactonization<i>VS</i>Oxidative Decarboxylation
作者:Helena M. C. Ferraz、Mčnica V. A. Grazini、Luiz F. Silva、Luiz S. Longo
DOI:10.1080/00397919908086184
日期:1999.6
Abstract The reaction of six β,γ-unsaturated carboxylic acids with thalliumtriacetate (TTA) was studied. The nature of the products is highly sensitive to the substitution pattern of the substrates. Aliphatic acids gave mainly lactones, while those bearing an aromatic ring furnished only decarboxylation products.
Therapeutic compositions are disclosed having choleretic activity, which contain as their active principle a-methyl-a-(3,4-dihydro-1-naphthyl)-acetic acid.
已公开的治疗组合物具有利胆活性,其活性成分为 a-甲基-a-(3,4-二氢-1-萘基)-乙酸。
Analgesic and antiinflammatory pharmaceutical compositions containing a naphthyl-acetic acid derivative
α-methyl- α-(3,4-dihydro-1-naphthyl)acetic acid, i.e. dinaproic acid, has such valuable analgesic and antiinflammatory activities, as to be useful in human therapy.