Radical conjugate addition onto vinyl sulfones was achieved by means of a convenient, tin-free procedure. This was based on the photocatalyzed C-H bond activation in aldehydes, amides, ethers and even cycloalkanes by using tetrabutylammonium decatungstate (TBADT). The reaction was likewise effective for the functionalization of β-substituted vinyl sulfones. The products are useful building blocks and were obtained in satisfactory yields both under artificial UV light and under sunlight, so demonstrating the "green" potential of the process. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
A tin-free, radical photocatalyzed addition to vinyl sulfones
Michele Zema;
2011-01-01
Abstract
Radical conjugate addition onto vinyl sulfones was achieved by means of a convenient, tin-free procedure. This was based on the photocatalyzed C-H bond activation in aldehydes, amides, ethers and even cycloalkanes by using tetrabutylammonium decatungstate (TBADT). The reaction was likewise effective for the functionalization of β-substituted vinyl sulfones. The products are useful building blocks and were obtained in satisfactory yields both under artificial UV light and under sunlight, so demonstrating the "green" potential of the process. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.File in questo prodotto:
Non ci sono file associati a questo prodotto.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
