Synthesis of N-Substituted Sulfamate Esters from Sulfamic Acid Salts by Activation with Triphenylphosphine Ditriflate.
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DOI: 10.1021/acs.orglett.7b03059
Abstract: A general approach to access sulfamate esters through preparation of sulfamic acid salts, subsequent activation with triphenylphosphine ditriflate, and nucleophilic trapping is disclosed. The method proceeds in modest to excellent yields to incorporate nucleophiles derived… read more here.
Keywords: acid salts; sulfamate esters; activation triphenylphosphine; triphenylphosphine ditriflate ... See more keywords
Photochemically-Mediated, Nickel-Catalyzed Synthesis of N-(Hetero)aryl Sulfamate Esters.
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DOI: 10.1021/acs.orglett.9b02621
Abstract: A general method is described for the coupling of (hetero)aryl bromides with O-alkyl sulfamate esters. The protocol relies on catalytic amounts of nickel and photoexcitable iridium complexes and proceeds under visible light irradiation at ambient… read more here.
Keywords: hetero aryl; alkyl sulfamate; sulfamate; sulfamate esters ... See more keywords
Sulfur(iv) reagents for the SuFEx-based synthesis of substituted sulfamate esters
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DOI: 10.1039/d2sc05945b
Abstract: Sulfur(vi) fluoride exchange chemistry has been reported to be effective at synthesizing valuable sulfur(vi) functionalities through sequential nucleophilic additions, yet oxygen-based nucleophiles are limited in this approach to phenolic derivatives. Herein, we report a new… read more here.
Keywords: sulfur fluoride; sulfamate esters; chemistry; sulfur ... See more keywords