[EN] NOVEL 3-INDOL SUBSTITUTED DERIVATIVES, PHARMACEUTICAL COMPOSITIONS AND METHODS FOR USE [FR] NOUVEAUX DÉRIVÉS SUBSTITUÉS PAR UN 2-INDOLE, COMPOSITIONS PHARMACEUTIQUES ET LEURS PROCÉDÉS D'UTILISATION
[EN] NOVEL 3-INDOL SUBSTITUTED DERIVATIVES, PHARMACEUTICAL COMPOSITIONS AND METHODS FOR USE [FR] NOUVEAUX DÉRIVÉS SUBSTITUÉS PAR UN 2-INDOLE, COMPOSITIONS PHARMACEUTIQUES ET LEURS PROCÉDÉS D'UTILISATION
Selective Monoalkylation of Acyclic Diols by Means of Dibutyltin Oxide and Fluoride Salts.
作者:Nobuo NAGASHIMA、Masaji OHNO
DOI:10.1248/cpb.39.1972
日期:——
Fluoride anion was found to promote monoalkylation reaction of diols by the stannylene acetal method, and selective monoalkylation of various acyclic diols was accomplished in good yields under mild conditions by employing this new method. Functional groups such as carboxylic acid ester, carboxamide, carbamate, nitrile, alkyl chloride, and ether were not affected under the reaction conditions.
Potentially Prebiotic Passerini-Type Reactions of Phosphates
作者:John Sutherland、Lee Mullen、Fabien Buchet
DOI:10.1055/s-2008-1078018
日期:2008.8
Monoalkyl phosphates can take the place of carboxylic acids in the Passerini reaction, but excesses of aldehyde and isonitriles are required, and transfer of the phosphate to the newly formed hydroxyl group does not take place. By rendering the phosphate addition intramolecular, the efficiency of the reaction is substantially increased. Phosphate transfer can take place when cyanovinyl phosphate is used rather than a monoalkyl phosphate.