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Revisiting of Benzophenone Ketyl Still: Use of a Sodium Dispersion for the Preparation of Anhydrous Solvents.

ABSTRACT: A facile generation of organic solvents of anhydrous grade can be performed by distillation from sodium-benzophenone ketyl, which is prepared from commercial sodium dispersion and benzophenone. The distilled tetrahydrofuran, diethyl ether, hexane, 1,2-dimethoxyethane, and 1,4-dioxane with water contents less than 10 ppm were obtained by a simple protocol. Safe treatment of the distillation residue also was simply achieved by the addition of methanol. The protocol suits for providing a small amount of an anhydrous solvent at the laboratory scale.

SUBMITTER: Inoue R

PROVIDER: S-EPMC6210062 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature

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Revisiting of Benzophenone Ketyl Still: Use of a Sodium Dispersion for the Preparation of Anhydrous Solvents.

Inoue Ryo R Yamaguchi Mana M Murakami Yoshiaki Y Okano Kentaro K Mori Atsunori A

ACS omega 20181005 10

A facile generation of organic solvents of anhydrous grade can be performed by distillation from sodium-benzophenone ketyl, which is prepared from commercial sodium dispersion and benzophenone. The distilled tetrahydrofuran, diethyl ether, hexane, 1,2-dimethoxyethane, and 1,4-dioxane with water contents less than 10 ppm were obtained by a simple protocol. Safe treatment of the distillation residue also was simply achieved by the addition of methanol. The protocol suits for providing a small amou ...[more]

PMID: 30411016

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