diastereo-, and stereoselective control of reactions with internal acyclic alkenes for the construction of functionalized acyclic alkanes still remain a persistent challenge. Here, we report a palladium-catalyzed asymmetric regiodivergent Heck-type diarylation of internal acyclic alkenes. The 1,2-diarylation of two accessible acyclic alkenes, cinnamyl carbamates and enamides with diazonium salts and aromatic
Photocatalyzed
<i>ortho</i>
‐Alkylation of Pyridine
<i>N</i>
‐Oxides through Alkene Cleavage
作者:Wang Zhou、Tomoya Miura、Masahiro Murakami
DOI:10.1002/anie.201801305
日期:2018.4.23
A photocatalyzed reaction of pyridine N‐oxides with alkenes gives ortho‐alkylated pyridines with cleavage of the carbon–carbon double bond. Benzyl and secondary alkyl groups are incorporated at the ortho position of pyridines in one pot.