Indonesia has played a vital role in the security of South-East Asia for more than 30 years, both through its prominent position in ASEAN and the ARF and through the stability and longevity of the Suharto regime. The central theme of this article emphasizes that peace and stability in Indonesia are the key to peace and stability in the South-East Asian region. However, instability within ASEAN countries themselves and the risk of serious upheaval in Indonesia have the potential to infect other parts of South-East Asia. The author assesses Indonesia's role in shaping regional security and the country's prospects for a successful democratic future in which the West has a strong interest in encouraging the more moderate Indonesian Islamic elements to build enduring and democratic political institutions.
CONDENSED-CYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME
申请人:SAMSUNG DISPLAY CO., LTD.
公开号:US20160190448A1
公开(公告)日:2016-06-30
A condensed-cyclic compound is represented by Formula 1:
where X
1
and R
1
to R
10
are as defined in the specification, and at least one of R
1
to R
10
is a group represented by Formula 2, and at least one of R
1
to R
10
is a group represented by Formula 3:
where L
1
, L
2
, Ar
1
to Ar
4
, a1 and a2 are as defined in the specification.
Brønsted Acid-Catalyzed Reaction of <i>N</i>-arylnaphthalen-2-amines with Quinone Esters for the Construction of Carbazole and C–N Axially Chiral Carbazole Derivatives
作者:Mingliang Zhang、Pin Zhao、Dongqing Wu、Zhichao Qiu、Chenyue Zhao、Wenyu Zhang、Feng Li、Jing Zhou、Lantao Liu
DOI:10.1021/acs.joc.2c02518
日期:2023.3.3
efficient synthetic method of carbazole derivatives from readily available N-arylnaphthalen-2-amines and quinone esters catalyzed by Brønsted acid. With this strategy, a series of carbazole derivatives were obtained in good to excellent yields (76 to >99) under mild conditions. Large scale reaction illustrated the synthetic utility of this protocol. Meanwhile, a series of C–N axially chiral carbazole derivatives
Tertiary butyl derivatives of toluenediamine and mixtures as antioxidant for organic materials
申请人:AIR PRODUCTS AND CHEMICALS, INC.
公开号:EP0270031A2
公开(公告)日:1988-06-08
This invention relates to the use of tertiary butyl derivatives of toluenediamine and specifically 5-tert-butyl-2,4-toluenediamine as an antioxidant material for preventing oxidation of organic materials.