Palladium-Catalyzed Direct Synthesis of Phosphole Derivatives from Triarylphosphines through Cleavage of Carbon-Hydrogen and Carbon-Phosphorus Bonds
作者:Katsuaki Baba、Mamoru Tobisu、Naoto Chatani
DOI:10.1002/anie.201307115
日期:2013.11.4
(Phosp)hole in one: A palladium‐catalyzed synthesis for directly assembling phosphole skeletons fromtriarylphosphinesthrough CH and CP bond cleavage was developed. This approach overcomes several of the limitations of the so far reported methods. Phospholes bearing a range of functionalities (including Br, F, CO2Me, Ac, and CN) and an array of fused rings (naphthalenes, anthracenes, furans, and
在一个(Phosp)孔:一个钯催化合成的用于从至C三芳基膦直接组装磷杂环骨架 H和13 C P键裂解被开发。这种方法克服了迄今为止报道的方法的一些局限性。可以容易地合成具有一系列功能性(包括Br,F,CO 2 Me,Ac和CN)的磷脂和一系列稠环(萘,蒽,呋喃和吡咯)。
Palladium-Catalyzed Synthesis of Dibenzophosphole Oxides via Intramolecular Dehydrogenative Cyclization
Dibenzophosphole oxides were obtained from secondary hydrophosphine oxides with a biphenyl group by dehydrogenation via phosphine–hydrogen and carbon–hydrogen bond cleavage in the presence of a catalytic amount of palladium(II) acetate, Pd(OAc)2. By using this reaction, a ladder-type dibenzophosphole oxide could also be synthesized by double intramolecular dehydrogenative cyclization.
Synthesis of Dibenzophospholes by Tf<sub>2</sub>O-Mediated Intramolecular Phospha-Friedel–Crafts-Type Reaction
作者:Kazutoshi Nishimura、Koji Hirano、Masahiro Miura
DOI:10.1021/acs.orglett.9b00219
日期:2019.3.1
A Tf2O-mediated intramolecular phospha-Friedel–Crafts-type reaction of secondary biarylphosphine oxides has been developed. The reaction is promoted simply by Tf2O to form the corresponding dibenzophospholes under metal-free conditions. The starting substrates are readily available and easy-to-handle phosphine oxides, and the regioselectivity is controlled by the innate electronic nature. Thus, this
Heterocyclic compound and organic light emitting device including the same
申请人:Samsung Display Co., Ltd.
公开号:US11078210B2
公开(公告)日:2021-08-03
A a heterocyclic compound and an organic light-emitting device including the same are presented. The organic light-emitting device includes two electrodes and an organic layer between the electrodes that includes an emission layer and at least one heterocyclic compound, which is represented by the following Formula:
wherein ring A1 is selected from a C5-C60 carbocyclic group and a C1-C60 heterocyclic group, X1 is O, S, or Se, and Li is selected from a substituted or unsubstituted C5-C60 carbocyclic group, a substituted or unsubstituted C1-C60 heterocyclic group, *—Si(Q1)(Q2)-*′, *—P(═O)(Q1)-*′, *—P(═O)2—*′, *—P(═S)(Q1)-*′, *—P(═S)2—*′, *—S(═O)(Q1)-*′, and *—S(═O)2—*′. Other variables in the Formula are defined, and more specific structures are disclosed in the specification.
HETEROCYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME
申请人:Samsung Display Co., Ltd.
公开号:US20190248801A1
公开(公告)日:2019-08-15
A a heterocyclic compound and an organic light-emitting device including the same are presented. The organic light-emitting device includes two electrodes and an organic layer between the electrodes that includes an emission layer and at least one heterocyclic compound, which is represented by the following Formula:
wherein ring A
1
is selected from a C
5
-C
60
carbocyclic group and a C
1
-C
60
heterocyclic group, X
1
is O, S, or Se, and Li is selected from a substituted or unsubstituted C
5
-C
60
carbocyclic group, a substituted or unsubstituted C
1
-C
60
heterocyclic group, *—Si(Q
1
)(Q
2
)-*′, *—P(═O)(Q
1
)-*′, *—P(═O)
2
—*′, *—P(═S)(Q
1
)-*′, *—P(═S)
2
—*′, *—S(═O)(Q
1
)-*′, and *—S(═O)
2
—*′. Other variables in the Formula are defined, and more specific structures are disclosed in the specification.