Aryl Sources for the Conjugate Asymmetric Arylation

The most commonly employed aryl sources are arylboronic acids. Due to their widespread application in the Suzuki-Miyaura reaction, organoboronic acids have found wide acceptance, and currently more than 450 different arylboronic acids are available commercially [47]. These compounds unite several beneficial properties such as high air and moisture stability and great functional group 

Based on mechanistic investigations conducted by Hartwig [56], P-aryl elimination from trisubstituted aryl methanols 63 derived from acridinone 65 was exploited to generate an aryl rhodium species which then undergoes 1,4-addition to a range of acyclic a,P-unsaturated carbonyl compounds 62. 

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