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ChemicalBook CAS DataBase List Butyric anhydride
106-31-0

Butyric anhydride synthesis

12synthesis methods
To a cooled flask containing 88 gm (1.0 mole) of η-butyric acid at 10°C is added dropwise 28.0 gm (0.5 mole) of methoxyacetylene over a 1-hr period. After stirring the reaction mixture for 16 hr at 20°C the contents are distilled to afford the following three fractions: (1) b.p. 56°C, η& 1.3628, 23 gm (62%), methyl acetate; (2) b.p. 72-73°C (18 mm Hg), n% 1.3990, 10.0 gm (11%), butyric acid; (3) b.p. 91-92°C (18mmHg), 1.4118, 48.0 gm (61%), butyric anhydride.
Preparation of Butyric Anhydride
-

Yield:106-31-0 95%

Reaction Conditions:

with N,N-bis[2-oxo-3-oxazolidinyl]phosphorodiamidic chloride;triethylamine in dichloromethane at 20; for 0.5 h;

References:

Cabre-Castellvi, J.;Palomo-Coll, A.;Palomo-Coll, A.L. [Synthesis,1981,# 8,p. 616 - 620]

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