Iron‐Catalyzed Synthesis of Dihydronaphthalenones from Aromatic Oxime Esters
作者:Youcan Zhang、Zhiping Yin、Xiao‐Feng Wu
DOI:10.1002/adsc.201900283
日期:2019.7.2
radical‐mediated synthesis of dihydronaphthalenones from oxime esters has been developed. By using iron salt as a green and inexpensive catalyst, various α‐aryl oxime esters were transformed into the corresponding dihydronaphthalenones in moderate to good yields with high chemo‐selectivities. The reaction proceeds via 1,5‐hydrogen atom transfer and then intramolecular radical cyclization sequence.
An efficient iminyl radical-triggered 1,5-hydrogen-atom transfer/Heck-type coupling cascade has been achieved through visible-light photoredoxcatalysis. A variety of unactivated C(sp3)–H bonds have been alkenylated efficiently and selectively with easily available alkenes, providing an elegant route to γ-alkenylated ketone.
COMPOSITIONS USEFUL AS INHIBITORS OF PROTEIN KINASES
申请人:Jimenez Juan-Miguel
公开号:US20100280026A1
公开(公告)日:2010-11-04
The present invention relates to compounds useful as inhibitors of protein kinases. The invention also provides processes for preparing the compounds, pharmaceutically acceptable compositions comprising the compounds, and methods of using the compounds and compositions in the treatment of various disease, conditions, or disorders.