Multi-component synthesis of dihydro-1,3-azaborinine derived oxindole isosteres.
Jun LiConstantin-Gabriel DaniliucJonas MaternGustavo FernándezGerald KehrGerhard ErkerPublished in: Chemical communications (Cambridge, England) (2021)
We report on the synthesis of the first examples of 1,3-azaborinine derived oxindole systems, the BN-isosteres of the important compound class of the oxindoles. Hydroboration of terminal aryl acetylenes with FmesBH2, followed by treatment with 2 equiv. of a glycine ester derived isonitrile gave a small series of 1,3-azaborinine derived oxindoles. The new BN-oxindoles show interesting photophysical behavior.
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