A novel and facile one-pot method for the synthesis of N-substituted sulfamates.

[摘要]：A one-pot approach to the formation of N-substituted sulfamates from carboxylic acids using di-tert-Bu dicarbonate, tetrabutylammonium sulfamate, and pyridine under mild conditions was described. A reaction mechanism with two competing pathways was proposed; in reactions with aliph. and electron-deficient arom. acid substrates, the desired sulfamate products are formed, in contrast, sym. anhydride intermediates are obsd. with electron-neutral or electron-rich arom. substrates.

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