3‐disubstituted phthalides in good to high yields at ambienttemperature. In a similar manner, 3‐hydroxyisoindolin‐1‐one and 3‐hydroxyoxindole derivatives could also be easily prepared by direct reductive coupling of phthalimides and N‐substituted isatins with activated alkenes, respectively. Application of this methodology towards the synthesis of 1‐naphthol derivatives on a gram scale is also depicted
Novel organic electroluminescent compounds and organic electroluminescent device using the same
申请人:Shin Hyo Nim
公开号:US20090260686A1
公开(公告)日:2009-10-22
The present invention relates to novel organic electroluminescent compounds, and organic electroluminescent devices employing the same as electroluminescent material. Specifically, the organic electroluminescent compounds according to the invention are characterized in that they are represented by Chemical Formula (1):
wherein, A and B independently represent CR
7
or N, provided that both A and B cannot be CR
7
or N at the same time; and X is O or S.
Since the organic electroluminescent compounds according to the invention have good luminous efficiency and excellent color purity and life property of material, OLED's having very good operation life can be manufactured therefrom.
Novel organic electroluminescent compounds and organic electroluminescent device
using the same
申请人:Eum Sung Jin
公开号:US20100033083A1
公开(公告)日:2010-02-11
Provided are novel organic electroluminescent compounds, and organic electroluminescent devices and organic solar cells employing the same. Specifically, the organic electroluminescent compounds according to the invention are characterized in that they are represented by Chemical Formula (1):
wherein, A, B, C and D independently represent CR
5
or N, provided that A, B, C and D cannot represent CR
5
all at the same time.
Since the organic electroluminescent compounds according to the invention have good luminous efficiency and excellent color purity and life property of material, OLED's having very good operation life can be manufactured therefrom.