New synthesis of quinazoline and benzoquinazoline derivatives
作者:Stefan K. Robev
DOI:10.1016/s0040-4039(00)88339-2
日期:1983.1
ROBEV, S. K.
作者:ROBEV, S. K.
DOI:——
日期:——
ROBEY, S. K., TETRAHEDRON LETT., 1983, 24, N 40, 4351-4354
作者:ROBEY, S. K.
DOI:——
日期:——
MIXALEVA M. A.; CHERNIKOVA G. N.; MAMAEV V. P., XIMIYA GETEROTSIKL. SOEDIN., 1978, HO 9, 1265-1271
作者:MIXALEVA M. A.、 CHERNIKOVA G. N.、 MAMAEV V. P.
DOI:——
日期:——
ORGANIC ELECTROLUMINESCENT MATERIAL AND DEVICE
申请人:Yen Feng-Wen
公开号:US20210130383A1
公开(公告)日:2021-05-06
A compound having a first ligand of the following
is described. Ring A represents a monocyclic aromatic group or a polycyclic aromatic group. Ring B represents a polycyclic aromatic group. Z is a carbon. Z and the right N are coordinated to a metal to form a five-membered chelate ring. R
1
and R
2
independently represent mono to a maximum possible number of substitutions, or no substitution.