A method to prepare synthetically important 3,5-disubstituted phenol derivatives that relies on the sequential gold(I)-catalyzed dehydrogenative cycloisomerization of 1,4-enyne esters in the presence of 2,3-dichloro-5,6-dicyanobenzoquinone (DDQ) or N-fluorobenzenesulfonimide (NFSI) is described. The synthetic versatility of the methodology was exemplified by a gram-scale reaction of one example, the ease to realize subsequent functional transformations of an adduct, and the application of the method to the synthesis of the bioactive molecule LUF5771.
机构:
King Saud Univ, Coll Pharm, Dept Pharmaceut Chem, Riyadh 11451, Saudi ArabiaNatl Inst Technol Karnataka, Dept Chem, Med Chem Lab, Mangalore 575025, India
Obaid, Abdulrahman
Fun, Hoong-Kun
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机构:
King Saud Univ, Coll Pharm, Dept Pharmaceut Chem, Riyadh 11451, Saudi Arabia
Univ Sains Malaysia, Sch Phys, X Ray Crystallog Unit, George Town 11800, MalaysiaNatl Inst Technol Karnataka, Dept Chem, Med Chem Lab, Mangalore 575025, India