Unusual visible-light photolytic cleavage of tertiary amides during the synthesis of cyclolignans related to podophyllotoxin
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DOI: 10.1016/j.tet.2017.09.021
Abstract: Abstract During the attempted photochemical cyclization of 2,3-bisbenzylidene-γ-hydroxybutyric acid cyclic amide ester, it was observed that a γ-butyrolactone ring was formed, which was concurrent with the release of the amine fragment from the amide. The… read more here.
Keywords: photolytic cleavage; cleavage; unusual visible; visible light ... See more keywords