Synthesis of Chiral Propargylamines, Chiral 1,2‐Dihydronaphtho[2,1‐b]furans and Naphtho[2,1‐b]furans with C‐Alkynyl N,N′‐di‐(tert‐butoxycarbonyl)‐aminals and β‐Naphthols
作者:Ningning Man、Yuming Li、Jiyang Jie、Hongyun Li、Haijun Yang、Yufen Zhao、Hua Fu
DOI:10.1002/chem.202102040
日期:2021.9.6
phosphoric acid-catalyzed in situ formation of N-(tert-butoxycarbonyl)-imines (N-Boc-imines) from the aminals, and 1,2-addition of β-naphthols to the N-Boc-imines. Chiral 1,2-dihydronaphtho[2,1-b]furans and naphtho[2,1-b]furans were prepared with satisfactory results when 10 mol% AgOAc and 20 mol% 2,6-lutidine or 1.2 equiv. of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) were added to the resulting chiral propargylamines
axially chiral biaryldiols via asymmetric Friedel–Crafts aromatization between p-quinones and 2-naphthols was developed. A chiral cobalt(II) complex of N,N′-dioxide enabled the process to generate axially chiral biaryldiols in up to 98% yield and 95% ee. A large range of substituents at different positions of p-quinones and 2-naphthols was tolerable. The configuration of the product and the chiral N,N′-dioxide-Co(ClO4)2
申请人:SFC CO., LTD. 에스에프씨 주식회사(120060087061) Corp. No ▼ 135511-0105889BRN ▼134-81-54429
公开号:KR102154056B1
公开(公告)日:2020-09-09
본 발명은 하기 [화학식 A] 내지 [화학식 C]로 표시되는 유기발광 화합물 및 이를 포함하는 유기전계발광소자에 관한 것으로서, 본 발명에 따른 유기발광 화합물을 포함하는 유기전계발광소자는 구동전압이 낮고 발광효율 및 수명 특성이 우수하다. [화학식 A] [화학식 B] [화학식 C]
This is the Chinese translation of the text you provided:
本发明涉及一种有机发光化合物及包含其的有机电致发光器件,所述有机电致发光器件包含根据本发明的有机发光化合物,其具有低驱动电压和优异的发光效率和寿命特性。 [化学式A] [化学式B] [化学式C]
The Interrupted Pummerer Reaction in a Sulfoxide‐Catalyzed Oxidative Coupling of 2‐Naphthols
作者:Zhen He、Alexander P. Pulis、David J. Procter
DOI:10.1002/anie.201903492
日期:2019.6.3
A benzothiopheneS‐oxide catalyst, generated in situ by sulfur oxidation with H2O2, mediates the oxidative coupling of 2‐naphthols. Key to the catalytic process is the capture and inversion of reactivity of a 2‐naphthol partner, using an interrupted Pummerer reaction of an unusualbenzothiopheneS‐oxide, followed by subsequent coupling with a second partner. The new catalytic manifold has been showcased
通过H 2 O 2硫氧化原位生成的苯并噻吩S-氧化物催化剂介导2-萘酚的氧化偶联。催化过程的关键是使用不寻常的苯并噻吩S-氧化物中断的Pummerer反应,然后与第二个配偶偶合,捕获和转化2-萘酚配偶的反应性。新的催化歧管已在生物活性天然产物(±)-尼莫酮和(±)-异麦酮的合成中得到展示。尽管Pummerer反应被广泛使用,但它们在催化中的应用却很少,我们的方法代表了一种新的无金属C-C键形成的催化流形。
Chiral Brønsted acid-catalyzed Friedel–Crafts alkylation of electron-rich arenes with in situ-generated ortho-quinone methides: highly enantioselective synthesis of diarylindolylmethanes and triarylmethanes
Hydrogen-bonded, in situ-generated ortho-quinone methides undergo highly enantioselective Friedel–Crafts reactions with indoles and naphthols under mild reaction conditions.