A Stable Acyclic Ligand Equivalent of an Unstable 1,3-Dithiol-5-ylidene.
Mendoza Espinosa, Daniel
2011
Ung, G.; Mendoza-Espinosa, D.; Bouffard, J.; Bertrand, G. A Stable Acyclic Ligand Equivalent of an Unstable 1,3-Dithiol-5-ylidene. Angew. Chem. Int. Ed. 2011, 50, 4215-4218.
Abstract
Read the full textAbout AbstractSubstitutes you can rely on: Mesoionic carbenes (MICs) are not always stable. However, the acyclic ethynylcarbamodithioate 2 formed (instead of the corresponding MIC) by deprotonation of dithiolium salt 1 underwent cyclization to its precursor under acidic conditions and reacted with a variety of transition?metal centers to yield robust MIC complexes 3; (see scheme; Tipp=2,4,6?triisopropylphenyl).
Related articles
Conformational studies on indole alkaloids from Flustra foliacea by NMR and molecular modeling
Trapping enols of esters and lactones with diazomethane
Stereochemical assignment of naturally occurring 2,3-epoxy-2-methylbutanoate esters
Regioselective Synthesis of 3-Indolyl(alkoxy)acetates
Synthesis of 6-bromo-2-arylindoles using 2-iodobenzoic acid as precursor
First Total Synthesis of ()-Flustraminol B
Cleavage of alkoxycarbonyl protecting groups from carbamates by t-BuNH2
Total Syntheses of Five Indole Alkaloids from the Marine Bryozoan Flustra foliacea