Yoko Nishida

A mild and efficient procedure for α-bromination of ketones using N-bromosuccinimide catalysed by ammonium acetate

Cyclic ketones reacted with N-bromosuccinimide (NBS) catalysed by NH(4)OAc in Et(2)O at 25 degrees C to give the corresponding alpha-brominated ketones in good yields, while acyclic ketones were efficiently brominated in CCl(4) at 80 degrees C.

A mild and efficient method for the mononitration of aromatic compounds by cerium (III) ammonium nitrate in acetic anhydride

A mild and efficient method for the mononitration of aromatic and olefinic compounds is described. This method is especially useful for active substrates.

Chemoselective Reduction of Aldehydes in the Presence of Ketones with NaBH4 in Polyethylene Glycol Dimethyl Ethers

Abstract Aldehydes and ketones were treated with NaBH4 in polyethylene glycol dimethyl ethers (PEGDME) to give the corresponding alcohols in good yields. Chemoselective reduction of aldehydes in the presence of ketones was described.

Formation of adamantan-1-ols by the reactions of adamantanes with 2,3-dichloro-5,6-dicyano-p-benzoquinone (DDQ) in trifluoromethanesulfonic acid

Adamantanes were treated with DDQ in trifluoromethanesulfonic acid followed by hydrolysis to give adamantan-1-ols in good yields.

Cleavage of Protecting Groups Catalysed by π-Acceptors

The cleavage of protecting groups is caused by the acidic adducts produced from the methanolysis of acceptors.