The first example of palladium(II)-catalyzed β-C(sp 3 )–H iodination of a wide range of ketones using a commercially available aminooxyacetic acid auxiliary has been achieved. This L, X-type directing group overcomes the limitations of the transient directing group approach for C(sp 3 )–H functionalization of ketones. Practical advantages of this method include simple installation of the auxiliary without chromatography, exceptional tolerance of α-functional groups, as well as alkenes and alkynes, and rapid access to diverse sterically hindered quaternary centers.
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Zhu et al. (2017) studied this question.
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