Metal-Free Fluorination of C(sp3)–H Bonds Using a Catalytic N-Oxyl Radical
摘要:
A direct conversion of C(sp(3))-H bonds to C(sp(3))-F bonds has been developed. In this process, a catalytic N-oxyl radical generated from N,N-dihydroxypyromellitimide abstracts hydrogen from the C(sp(3))-H bond and Selectfluor acts to trap the resulting carbon radical to form the C(sp(3))-F bond. This simple metal-free protocol enables the chemoselective introduction of a fluorine atom into various aromatic and aliphatic compounds and serves as a powerful tool for the efficient synthesis of fluorinated molecules.
ISOCARBACYCLIN WITH MODIFIED $g(a)-CHAIN AND PROCESS FOR PRODUCING THE SAME
申请人:TEIJIN LIMITED
公开号:EP0664281A1
公开(公告)日:1995-07-26
An isocarbacyclin with the α-chain modified with phenylene, cycloalkylene or thiophenediyl. It has the activity of inhibiting DNA synthesis of human smooth muscle cells and is expected to inhibit vascular hypertrophy.
一种α-链经亚苯基、环烷基或噻吩二基修饰的异碳双环化合物。它具有抑制人体平滑肌细胞 DNA 合成的活性,可望抑制血管肥大。
ISOCARBACYCLIN WITH MODIFIED alpha(a)-CHAIN AND PROCESS FOR PRODUCING THE SAME
申请人:TEIJIN LIMITED
公开号:EP0664281B1
公开(公告)日:1997-05-28
Metal-Free Fluorination of C(sp<sup>3</sup>)–H Bonds Using a Catalytic <i>N</i>-Oxyl Radical
作者:Yuuki Amaoka、Masanori Nagatomo、Masayuki Inoue
DOI:10.1021/ol4006757
日期:2013.5.3
A direct conversion of C(sp(3))-H bonds to C(sp(3))-F bonds has been developed. In this process, a catalytic N-oxyl radical generated from N,N-dihydroxypyromellitimide abstracts hydrogen from the C(sp(3))-H bond and Selectfluor acts to trap the resulting carbon radical to form the C(sp(3))-F bond. This simple metal-free protocol enables the chemoselective introduction of a fluorine atom into various aromatic and aliphatic compounds and serves as a powerful tool for the efficient synthesis of fluorinated molecules.