Pd-Catalyzed β-C(sp<sup>3</sup>
)−H Arylation of Propionic Acid and Related Aliphatic Acids
作者:Kiron K. Ghosh、Manuel van Gemmeren
DOI:10.1002/chem.201705449
日期:2017.12.14
A generally applicable Pd‐catalyzed protocol for the β‐C(sp3)−H arylation of propionic acid and related α‐branched aliphatic acids is reported. Enabled by the use of N‐acetyl‐β‐alanine as ligand our protocol delivers a broad range of arylation products. Notably, the highly challenging substrate, propionic acid, which lacks any acceleration through the Thorpe–Ingold effect, can be employed as substrate
据报道,丙酸和相关的α-支链脂肪酸的β-C(sp 3)-H芳基化反应普遍采用钯催化方案。通过使用N-乙酰基-β-丙氨酸作为配体,我们的方案可提供多种芳基化产物。值得注意的是,具有挑战性的底物丙酸可以通过合成获得有用的收率,而丙酸由于其索普-英戈尔德效应而没有任何加速作用,因此可以用作底物。此外,还演示了该协议的可伸缩性和综合适用性。