Chloramine-B, N-chlorobenzenesulfonamide sodium salt
The use of chloramine-B as the oxidant and KI or NaBr as the halogen source enables a direct oxidative halogenation of terminal alkynes to provide synthetically valuable 1-iodoalkynes and 1-bromoalkynes in very good yields under mild reaction conditions.
危险品化学品经营许可证（带存储）