Photoinduced [1,5]-hydride shift triggered cyclization

ortho-Dialkylaminoarylidene malonates undergo hydrogen transfer mediated cyclization in the absence of a catalyst under LED irradiation. This activation mode is found to be relatively general and could be applied to a number of other acceptor motifs in the arylidene substrates tested. Variation of the light source wavelength opens an extra option for fine tuning of the reaction conditions, making the described method almost universal.

Automated summary

ortho-Dialkylaminoarylidene malonates undergo hydrogen transfer mediated cyclization in the absence of a catalyst under LED irradiation. This activation mode is relatively general and can be applied to a number of other acceptor motifs in the arylidene substrates tested. Variation of the light source wavelength provides an extra option for fine tuning of the reaction conditions, making the described method almost universal.