Photocatalytic direct intermolecular addition of 1,3-dithianes
2015
Lee, Ming | Chen, Ying-Ho | Hung, Tzu-Hang | Zhang, Wen | Yan, Wei-Cheng | Leow, Dasheng
A direct intermolecular addition of 1,3-dithianes to alkenes has been accomplished via visible-light mediated photocatalysis. This new process proceeds in moderate to excellent yields and eliminates the need for pre-functionalization of substrates. Electronic tuning of the 1,3-dithiane plays a vital role in ensuring reactivity. Both aromatic and aliphatic aldehyde-derived 1,3-dithianes are compatible. This radical umpolung strategy allows the synthesis of γ-keto-α-amino acid derivatives.
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