1.
J Org Chem
; 81(8): 3188-98, 2016 Apr 15.
Artigo
em Inglês
| MEDLINE
| ID: mdl-27011233
RESUMO
Pyrolysis of bis(perfluoroalkanesulfonyl)bromonium ylides in various olefins results in highly stereospecific formation of cyclopropanes via unimolecular decomposition. Product analysis, kinetic study, substituent effects, and theoretical study revealed the generation of singlet bis(perfluoroalkanesulfonyl)carbenes stabilized by intramolecular coordination of sulfonyl oxygen.
2.
Org Biomol Chem
; 13(7): 2129-33, 2015 Feb 21.
Artigo
em Inglês
| MEDLINE
| ID: mdl-25525964
RESUMO
A simple method for direct metal-free C-H amination of unactivated hydrocarbons using easy-handling diacetoxy-λ(3)-bromane and triflylamide or sulfamate esters was developed. The high 2°/3° regioselectivities and deuterium isotope effects suggest a concerted organonitrenoid transition state, analogous to C-H amination with N-triflylimino-λ(3)-bromane.