Regioselective Bromocyclization of Unsaturated N-Tosylcarbamates Promoted by N,N-Dibromosulfonamides

Autor: Ling Zhou, Ming-Hui Sun, Jie Chen, Ge Gao, Guo-Tao Fan
Rok vydání: 2014
Předmět:
Zdroj: Synlett. 25:1921-1925
ISSN: 1437-2096
0936-5214
DOI: 10.1055/s-0034-1378314
Popis: Simple and highly regioselective bromo-N-cyclization and bromo-O-cyclization reactions of unsaturated N-tosylcarbamates have been developed. The use of N,N-dibromosulfonamides as brominating reagents plays an important role in these electrophilic cyclization reactions. This method is useful in organic synthesis. The desired products can be smoothly transformed into aziridines or epoxides.
Databáze: OpenAIRE