Quinoxalines. XXVII. The cyanation of 2-substituted quinoxaline 4-oxides with trimethylsilyl cyanide.
作者:Chihoko IIJIMA、Akira MIYASHITA
DOI:10.1248/cpb.38.661
日期:——
The deoxy-cyanation of 2-substituted quinoxaline 4-oxides (Ia-k) with trimethylsilyl cyanide in the presence of 1, 8-diazabicyclo[5.4.0]undec-7-ene gave the corresponding 3-substituted 2-quinoxalinecarbonitriles (IIa-k). However, in the case of 2-(p-tolylsulfonyl)quinoxaline 4-oxide (II), the substitution with cyanide ion proceeded together with deoxy-cyanation to give 2, 3-quinoxalinedicarbonitrile (III).
Nitrogen-containing condensed cyclic compound and organic light emitting device using same
申请人:LG CHEM, LTD.
公开号:US10347845B2
公开(公告)日:2019-07-09
The present specification provides a nitrogen-containing condensed cyclic compound of chemical formula 1 and an organic light emitting device comprising the same.
NITROGEN-CONTAINING CONDENSED CYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DEVICE USING SAME
申请人:LG CHEM, LTD.
公开号:US20170213984A1
公开(公告)日:2017-07-27
The present specification provides a nitrogen-containing condensed cyclic compound of chemical formula 1 and an organic light emitting device comprising the same.