Peri fluoro steric effects: syntheses and comparative acid-catalyzed isomerization of the 8-, 9-, and 11-fluoro-1,2,3,4-tetrahydro-7,12-dimethylbenz[a]anthracenes to exo methylene tautomers
Peri fluoro steric effects: syntheses and comparative acid-catalyzed isomerization of the 8-, 9-, and 11-fluoro-1,2,3,4-tetrahydro-7,12-dimethylbenz[a]anthracenes to exo methylene tautomers
Directed Functionalization of Halophenyl-2-oxazolines with TMPMgCl·LiCl
作者:João H. C. Batista、Fernanda M. dos Santos、Leandro A. Bozzini、Ricardo Vessecchi、Alfredo R. M. Oliveira、Giuliano C. Clososki
DOI:10.1002/ejoc.201403255
日期:2015.2
TMPMgCl·LiCl to give an organomagnesium reagent, which was then treated with various electrophiles. The metalation step takes place under mild conditions, and this process allows for the isolation of the desired products in good yields. No isomeric or other benzyne-derived products were detected. The influence of the halogen substituents on the acidity of the aromatic hydrogen atoms was evaluated by using density