Ruthenium-Catalyzed <i>ortho</i>-C–H Mono- and Di-imidation of Arenes with <i>N</i>-Tosyloxyphthalimide
作者:M. Ramu Yadav、Majji Shankar、E. Ramesh、Koushik Ghosh、Akhila K. Sahoo
DOI:10.1021/acs.orglett.5b00570
日期:2015.4.17
The Ru(II)-catalyzed imidation of the o-C–H bond in arenes with N-tosyloxyphthalimide is realized with the assistance of a methyl phenylsulfoximine (MPS) directing group. This method is applicable to access the hitherto difficult o-C–H di-imidation products. The sequential C–N and C–C bond formation of o-C–H arenes creates peripherally decorated benzoic acid derivatives. The readily removable MPS-DG