50515-42-9Relevant articles and documents
Phosphine-Catalyzed α-Umpolung-Aldol Reaction for the Synthesis of Benzo[ b]azapin-3-ones
Zhang, Kui,Cai, Lingchao,Hong, Sooji,Kwon, Ohyun
, p. 5143 - 5146 (2019)
A novel phosphine-catalyzed intermolecular cyclization between 2-sulfonamidobenzaldehyes and ynones is reported. This methodology serves as a conduit for the construction of benzo[b]azepin-3-ones in good to excellent yields under mild conditions. The resu
NEW METHODS AND REAGENTS IN ORGANIC SYNTHESIS. 46.1) TRIMETHYLSILYLDIAZOMETHANE: A CONVENIENT REAGENT FOR THE O-METHYLATION OF PHENOLS AND ENOLS
Aoyama, Toyohiko,Terasawa, Satomi,Sudo, Kimio,Shioiri, Takayuki
, p. 3759 - 3760 (2007/10/02)
Trimethylsilyldiazomethane reacts smoothly with phenols and enols in methanolic acetonitrile solution in the presence of N,N-diisopropylethylamine to give methyl ethers. KEYWORDS --- trimethylsilyldiazomethane; phenol; enol; O-methylation; methyl ether
The Allopolarization Principle and its Applications, IV. Substituent Effects in the Methylation of Enolate Anions
Gompper, Rudolf,Vogt, Hans-Hubert
, p. 2866 - 2883 (2007/10/02)
The ratio of O- and C-methylated products in the reaction of the sodium salts of acetophenones 1, propiophenones 3, phenylacetones 5, β-dicarbonyl compounds 12, α-cyanocarbonyl compounds 13, acetaldehyde, propionaldehyde, and diethylketone with dimethyl sulfate, methyl iodide, and trimethyl phosphate in HMPTA has been determined with regard to the effect of substituents.In some cases the influence of solvents, concentration and temperature has also been studied.