There is an increasing demand for facile delivery of silyl groups onto organic bioactive molecules. One of the common methods of silylation via a transition-metal-catalyzed coupling reaction employs hydrosilane, disilane, and silylborane as major silicon sources. However, the labile nature of the reagents or harsh reaction conditions sometimes render them inadequate for the purpose. Thus, a more versatile
Protodesilylation of Arylsilanes by Visible-Light Photocatalysis
作者:Jan H. Kuhlmann、Mustafa Uygur、Olga García Mancheño
DOI:10.1021/acs.orglett.2c00288
日期:2022.3.4
The first visible-light-mediated photocatalytic, metal- and base-free protodesilylation of arylsilanes is presented. The C(sp2)–Si bond cleavage process is catalyzed by a 5 mol % loading of a commercially available acridinium salt upon blue-light irradiation. Two simple approaches have been identified employing either aerobic or hydrogen atom transfer cocatalytic conditions, which enable the efficient
Aromatic amine derivative and organic electroluminescent element using same
申请人:Mizuki Yumiko
公开号:US20110297923A1
公开(公告)日:2011-12-08
An aromatic amine derivative represented by the following formula (1):
wherein at least one of R
1
to R
8
is a group other than a hydrogen atom, Ar
1
to Ar
4
are a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms.
AROMATIC AMINE DERIVATIVE AND ORGANIC ELECTROLUMINESCENT ELEMENT USING SAME
申请人:IDEMITSU KOSAN CO., LTD.
公开号:US20160181527A1
公开(公告)日:2016-06-23
An aromatic amine derivative represented by the following formula (1):
wherein at least one of R
1
to R
8
is a group other than a hydrogen atom, Ar
1
to Ar
4
are a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms.
Visible Light Thiyl Radical‐Mediated Desilylation of Arylsilanes
作者:Jan H. Kuhlmann、Jan H. Dickoff、Olga García Mancheño
DOI:10.1002/chem.202203347
日期:2023.2.24
available and cheap disulfides proved to be excellent thiyl-radical sources for the mild desilylation of arylsilanes under visible-light irradiation. This method relying in a radical chain mechanism shows a broad applicability and functional group tolerance, allowing for the effective reaction of simple arylsilanes, as well as complex structures and therapeutic derivatives.