isolated (along with some. 3-diketone III) from the reaction mixture of acetic anhydride and the enol acetate of methyl ethyl ketone and shown to be.
In the presence of sodium acetate as catalyst chloral hydrate undergoes a mixed aldol condensation with aliphatic and alicyclic ketones in acetic anhydride
acetic acid and acetic anhydride from which they now described theisolation of both phenylacetone and dibenzyl ketone. The reactions which they.
Enol-acetylation reactions under microwave irradiation. 6. 2. 2-cholestene-3-ol acetate 90 the reaction of acetic anhydride with ketones. When.
the reaction mixture resulting from limited hydrogenation of O-ethylbenzoylacetone over nickel. The acetylation of ketones with acetic anhydride.
secondary hydroxyl functions to ketones in a variety of alkaloids and steroids occurs in moderateto excellent yields. The dimethyl sulfoxide-acetic anhydride
ketone. The reaction product obtained on refluxing gly- cine and acetic anhydride in pyridine can be frac- tionated to give a principal fraction boiling at
ture of the ketone or anhydride is notapparent. Acetone and acetic anhydride have given the highest yield (80-86%)4 for this type of reaction;.
The structures of acetate Ia and ketone I11 were readily established by comparison with authentic samples. The structure of thio ether I1 mas proposed on the
hydes and ketones (4-7). The condensations of phthalic anhydride with various carbonyl-stabilized ylides were frst investigated by Chopard et al. (reaction