Synthesis of 2-substituted pyrimidines and benzoxazoles via a visible-light-driven organocatalytic aerobic oxidation: enhancement of the reaction rate and selectivity by a base
A new O/W (oil-in-water) emulsification system was developed using the amphiphilic polymer HHM-HEC (hydrophobically-hydrophilically modified hydroxyethyl cellulose) and a lipophilic surfactant. HHM-HEC was used as a thickener and polymeric surfactant, and the addition of small quantities of various types of nonionic lipophilic surfactant (hydrophilic-lipophilic balance < 5) decreased the droplet size of several types of oil due to a lowering of the tension at the water/oil interface. The oil droplets were held by the strong network structure of the aqueous HHM-HEC solution, preserving the O/W phase without inversion. These stable O/W emulsions were prepared without the addition of hydrophilic surfactants and thus show improved water repellency. (c) 2006 Elsevier Inc. All rights reserved.
Chiral Brønsted Acid Catalyzed Enantioselective Aza-Diels–Alder Reaction of Brassard's Diene with Imines
作者:Junji Itoh、Kohei Fuchibe、Takahiko Akiyama
DOI:10.1002/anie.200601345
日期:2006.7.17
TRIBENZAZOLE AMINE DERIVATIVE AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING SAME
申请人:LAPTO CO., LTD.
公开号:US20220017503A1
公开(公告)日:2022-01-20
Provided is a tribenzazole amine derivative represented by Formula 1 that effectively absorbs high energy UV light from an external light source to minimize damage to organic materials present in an organic electroluminescent device, contributing to a substantial improvement in the lifetime of the organic electroluminescent device. Also provided is an organic electroluminescent device using the tribenzazole amine derivative. The organic electroluminescent device includes a first electrode, a second electrode, and an organic layer arranged between the first and second electrodes. The organic layer includes the tribenzazole amine derivative.
[EN] TRIBENZAZOLE AMINE DERIVATIVE AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING SAME<br/>[FR] DÉRIVÉ D'AMINE TRIBENZAZOLE ET DISPOSITIF ÉLECTROLUMINESCENT ORGANIQUE LE COMPRENANT<br/>[KO] 트리벤즈아졸 아민 유도체 및 이를 포함한 유기 전계 발광 소자
申请人:LAPTO CO LTD
公开号:WO2020122359A1
公开(公告)日:2020-06-18
UV영역의 고에너지 외부 광원을 효과적으로 흡수하여 유기 전계 발광 소자 내부의 유기물들의 손상을 최소화함으로써 유기 전계 발광 소자의 실질적인 수명 향상에 기여하는 트리벤즈아졸 아민 유도체를 제공한다. 본 발명에 따른 유기 전계 발광 소자는, 제1 전극; 제2 전극; 및 상기 제1 전극과 제2 전극 사이에 배치된 유기물층;을 포함하고, 상기 유기물층은 본 발명에 따른 화학식 1로 표시되는 트리벤즈아졸 아민 유도체를 포함한다.