MeOTf-Induced Carboannulation of Isothiocyanates and
Aryl Alkynes with CS Bond Cleavage: Access to Indenones
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Abstract
MeOTf-induced
carboannulation of alkyl isothiocyanates and aryl
alkynes for the synthesis of indenones in good yields under metal-free
conditions with CS bond cleavage is described. The thioalkoxy
group at the 3-position of the indenone can also be converted into
other functional groups, such as phenyl, methylsulfonyl, amino, and
ethoxy groups