An expeditious and consistent procedure for tetrahydrofuran (THF) drying and deoxygenation by the still apparatus
AUTOR(ES)
Simas, Alessandro B. C., Pereira, Vera L. P., Barreto Jr., Cleber B., Sales, Daniel L. de, Carvalho, Leandro L. de
FONTE
Química Nova
DATA DE PUBLICAÇÃO
2009
RESUMO
Despite the availability of alternative methods for drying tetrahydrofuran (THF), the use of the still apparatus, wherein a THF solution containing Na-bezophenone ketyl is heated to reflux, remains widespread. We herein propose a set of procedures to solve the problems usually faced in applying this drying technique. Moreover, a discussion is made on the chemical knowledge underlying such procedures. Safety and economy issues concerned with the operation of the THF still apparatus are also discussed.
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