A Facile Method for the Titration of Organolithium Reagents using Naphtylamine or Naphtylmethylamine as Indicators

A simple method for the titration of alkyllithiums with sec-butanol, using naphtylamine or naphtylmethylamine as color indicator, is reported. Both amines gave sharp-end points, easily determined by color changes from brown to yellow (naphtylamine) and from green to colorless (naphtylmethylamine). T...

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Detalhes bibliográficos
Autor: Cabezas Pizarro, Jorge A.
Formato: artículo
Fecha de publicación:2019
País:Costa Rica
Recursos:Universidad de Costa Rica
Repositorio:Kérwá
Idioma:inglés
OAI Identifier:oai:kerwa.ucr.ac.cr:10669/88359
Acesso em linha:http://ijmcr.com/a-facile-method-for-the-titration-of-organolithium-reagents-using-naphtylamine-or-naphtylmethylamine-as-indicators/
https://hdl.handle.net/10669/88359
Access Level:acceso abierto
Palavra-chave:CHEMISTRY
Descrição
Resumo:A simple method for the titration of alkyllithiums with sec-butanol, using naphtylamine or naphtylmethylamine as color indicator, is reported. Both amines gave sharp-end points, easily determined by color changes from brown to yellow (naphtylamine) and from green to colorless (naphtylmethylamine). The accuracy of the determination was in accordance with the values obtained by a standard method.