정공 수송능과 전자 수송능을 분자 내에 겸비하는 특정한 구조를 갖는 신규 방향족 복소 고리 유도체, 그리고 상기 방향족 복소 고리 유도체를 사용한 유기 일렉트로 루미네선스 소자용 재료, 유기 일렉트로 루미네선스 소자용 재료 용액 및 유기 일렉트로 루미네선스 소자를 제공한다.
Asymmetricsynthesis of tetrahydrobenzodiazepines was achieved by transfer hydrogenation of dihydrobenzodiazepines with benzothiazoline having a hydrogen‐bonding donor substituent by means of a newly synthesized chiral phosphoric acid. This method was applicable to various racemic dihydrobenzodiazepines to give the corresponding products in good yields with excellent diastereoselectivities and enantioselectivities
Synthesis of Pyrido[2,3-d]pyrimidines Catalyzed by 2,3-Dichloro-5,6-dicyano-1,4-benzoquinone (DDQ)/tert-Butyl Nitrite (TBN)/O2
作者:Dongping Cheng、Jing-Hua Li、Xiaoliang Xu、Hongshuang Xia、Huafang Gu、Yawei Wang
DOI:10.1055/a-2156-7470
日期:2023.12
uracils/thiouracil with 1,3-diarylpropenes is disclosed. It undergoes oxidative coupling, intramolecular cyclization, and dehydro-aromatization to provide multi-substituted pyrido[2,3-d]pyrimidines/thiopyrido[2,3-d]pyrimidines in moderate to excellent yields. It has the advantages of high atom economy, green terminal oxidant, and metal-free conditions.