One-Pot, Three-Component Arylalkynyl Sulfone Synthesis
نویسندگان
چکیده
منابع مشابه
One-Pot, Three-Component Arylalkynyl Sulfone Synthesis
A one-pot three-component protocol for the preparation of arylsulfonyl alkynes through the reaction of ethynyl-benziodoxolone (EBX) reagents, DABSO (DABCO·SO2), and either organomagnesium reagents or aryl iodides with a palladium catalyst is reported. A broad range of aryl and heteroarylalkynyl sulfones were obtained in 46-85% overall yield.
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The addition of Grignard reagents or organolithium reagents to the SO2-surrogate DABSO generates a diverse set of metal sulfinates, suitable for direct conversion to sulfone products. The metal sulfinates can be trapped in situ with a wide range of C-electrophiles, including alkyl, allyl, and benzyl halides, epoxides, and (hetero)aryliodoniums.
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The development of new methods for linking sugars to heterocycles and peptides is an attractive area of research because glyco-conjugates play important roles in biology and medicine and are indispensable tools for probing several processes. Herein we report a one-pot, three-component sequential procedure for the synthesis of a novel class of glyco-conjugates, i.e. glyco-hydantoin conjugates, i...
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ژورنال
عنوان ژورنال: Organic Letters
سال: 2015
ISSN: 1523-7060,1523-7052
DOI: 10.1021/acs.orglett.5b00015