A cascade insertion-nucleophilic annulation reaction of salicyl N-tosylimines with aryne generated in situ from 2-（trimethyl- silyl） aryl triflate and KF-18-crown-6 has been developed, providing 9-aminoxanthenes eff...A cascade insertion-nucleophilic annulation reaction of salicyl N-tosylimines with aryne generated in situ from 2-（trimethyl- silyl） aryl triflate and KF-18-crown-6 has been developed, providing 9-aminoxanthenes efficiently in one step.展开更多
A new method for preparation of N-tosylimines by InCl_3-mediated condensation of aldehydes with p-toluenesulfonamide in refluxing benzene is reported.The procedure is lauded by its simplicity,mild reaction conditions,...A new method for preparation of N-tosylimines by InCl_3-mediated condensation of aldehydes with p-toluenesulfonamide in refluxing benzene is reported.The procedure is lauded by its simplicity,mild reaction conditions,excellent yields and adaptability to electron deficient and electron rich aromatic,andα,β-unsaturated aldehydes.展开更多
基金the National Natural Science Foundation of China(No.21162022)the Team Innovation Project of Shihezi University(No.2011ZRKETD-04) for financial support
文摘A cascade insertion-nucleophilic annulation reaction of salicyl N-tosylimines with aryne generated in situ from 2-（trimethyl- silyl） aryl triflate and KF-18-crown-6 has been developed, providing 9-aminoxanthenes efficiently in one step.
文摘A new method for preparation of N-tosylimines by InCl_3-mediated condensation of aldehydes with p-toluenesulfonamide in refluxing benzene is reported.The procedure is lauded by its simplicity,mild reaction conditions,excellent yields and adaptability to electron deficient and electron rich aromatic,andα,β-unsaturated aldehydes.
