Tag: 200-300

On June 25, 2021, Ma, Tiantian; Zhang, Kongyan; Li, Xinxuan; Zheng, Yiyi published a patent.Synthetic Route of 1268137-13-8 The title of the patent was Nitrogen-containing compound, electronic component and electronic device containing the same. And the patent contained the following:

The present invention relates to a nitrogen-containing compound that is represented by the formula I, wherein A and B are independently C6-C30 (un)substituted aryl, aryl, etc.; U1, U2 and U3 are independently selected from N or C(R), and at least one of U1, U2 and U3 is N; each of R, R1, R2, R3, R4, and R5 is independently selected from hydrogen, deuterium, halogen group, cyano group, etc.; n1, n2, n3, n4, n5 are selected from 1, 2, 3 or 4, when n1-n5 is greater than 1; X is selected from S or O; L, L1, L2, L3 and L4 are independently selected from single bonds, (un)substituted arylene groups having 6-30 carbon atoms, and (un)substituted heteroarylene group having 3-30 carbon atoms; and Ar1 and Ar2 are independently selected from (un)substituted aryl groups having 6-30 carbon atoms, and (un)substituted heteroaryl groups having 3-30 carbon atoms. The nitrogen-containing compound can be used in the light-emitting layer material of an organic electroluminescent device, improving the electron transport performance of the device, and improving the luminous efficiency and service life of the device. The experimental process involved the reaction of 7-Bromo-2-phenylbenzo[d]oxazole(cas: 1268137-13-8).Synthetic Route of 1268137-13-8

The Article related to nitrogen carbazole heterocyclic compound application oled, Heterocyclic Compounds (More Than One Hetero Atom): Triazines and other aspects.Synthetic Route of 1268137-13-8

Referemce:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

On November 2, 2021, Yang, Min published a patent.Formula: C13H8BrNO The title of the patent was Preparation of triazine derivatives and their application in OLED. And the patent contained the following:

The present invention relates to preparation of triazine derivatives and their application in OLED. In particular the preparation of compound containing I, II and III (wherein, * represents the connection site of I and II; I is connected to the two adjacent connection points in II; A is the connection site of III; wherein, ring B represents C10-20 aromatic ring; X = S or O; Het = C3-20 heteroarylene group and contains at least two N atoms ; L1, L2 and L3 = a single bond, (un)substituted C6-30 arylene, C3-30 heteroaryl; Ar1, Ar2 and Ar3 = hydrogen, (un)substituted C6-30 aryl or C3-30 heteroaryl groups; the substituents in L1, L2, L3, Ar1, Ar2 and Ar3 = deuterium, halogen, cyano, C3-20 heteroaryl, C6-20 aryl, C1-10 alkyl, C1-10 haloalkyl, C2-10 heterocycloalkyl, C1-10 alkoxy; optionally, in Ar1 and Ar2, any two adjacent substituents form a ring). Further, (R1, R2 and R3 = hydrogen, deuterium, halogen, cyano, C6-C20 aryl, C3-C30 heteroaryl, C3-C12 trialkylsilyl, C1-C10 alkyl, C1-10 haloalkyl, C3-10 cycloalkyl, C2-10 heterocycloalkyl or C1-10 alkoxy; n1 = 1, 2, 3 or 4; when n1 is greater than 1, any two R1s are the same or different, optionally, any two adjacent R1 form a ring; n2 = 1 or 2; when n2 is greater than 1, any two R2s are the same or different, optionally, any two adjacent R2s form a ring; n3 = 1, 2, 3, or 4; when n3 is greater than 1, any two R3s are the same or different, and optionally, any two adjacent R3s form a ring). The inventive triazine compound can effectively improve the light-emitting efficiency of the device, reduce the voltage of the device and prolong the service life of the organic electroluminescent device. The experimental process involved the reaction of 7-Bromo-2-phenylbenzo[d]oxazole(cas: 1268137-13-8).Formula: C13H8BrNO

The Article related to triazine derivative preparation organic electroluminescent device, Heterocyclic Compounds (More Than One Hetero Atom): Triazines and other aspects.Formula: C13H8BrNO

Referemce:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

On August 8, 2017, Cao, Jianhua; Hua, Ruimao published a patent.Computed Properties of 1268137-13-8 The title of the patent was Benzoxazole derivative and its application in organic light-emitting diode. And the patent contained the following:

The invention disclosed a kind of benzoxazole derivative, its preparation method and application in organic light-emitting diode. The claimed benzoxazole derivative is shown in structure I (Ar1,Ar2 = H, hydrogen, Ph, biphenyl, 1-naphthyl, 2-naphthyl, pyridyl, pyrenyl, anthryl, phenanthryl, or (un)substituted C2-60 heteroaryl; R1,R2,R3 = hydrogen, deuterium, straight or branched alkyl, alkoxy (un)substituted C6-60 aryl, (un)substituted C2-60 heteroaryl; L1 = (un)substituted phenylene, naphthylene, fluorenylene, spirofluorenyl, anthracenyl, pyridylene, etc. x = 0-5 integers). The claimed compound is prepared via multiple steps (procedure given). The prepared compound can be applied in organic electroluminescence device. The claimed organic electroluminescence device sequentially comprises a transparent substrate, an anode layer, a hole injection layer, a hole transport layer, an organic luminescent layer, an electron transport layer, and a cathode layer. The prepared compound has excellent electron transport capacity, can significantly reduce starting voltage, and improve luminescent efficiency and brightness, better film forming performance, simple synthesis and purification methods, and suitability for large-scale production, can be used as luminescent material, main material of luminescent layer or hole transport material. The experimental process involved the reaction of 7-Bromo-2-phenylbenzo[d]oxazole(cas: 1268137-13-8).Computed Properties of 1268137-13-8

The Article related to benzoxazole derivative preparation organic light emitting diode, Heterocyclic Compounds (More Than One Hetero Atom): Oxazoles, Isoxazoles and other aspects.Computed Properties of 1268137-13-8

Referemce:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

On March 1, 2022, Ma, Tiantian; Zheng, Yiyi; Xu, Jiacong published a patent.Category: benzoxazole The title of the patent was Preparation of heterocyclic nitrogen compounds for organic electroluminescent device. And the patent contained the following:

The present invention relates to the preparation of heterocyclic nitrogen compounds for organic electroluminescent device. In particular, the preparation of compound I (wherein, * represents a connection site, ring A, B and C = C6-14 aryl and are not benzene rings at the same time; in formula II * is the bond which represents fusion on any two adjacent carbon atoms of ring B in I; U1, U2 = (un)substituted [C6-30 aryl, C3-30 heteroaryl] or a structure shown in formula III or IV, and at least one of U1 and U2 is selected from formula III or IV; X = S or O; X1, X2 and X3 = N or C(R), and at least one of X1, X2 and X3 is N; E1 = (R1)n1; E2 = (R2)n2; E3 = (R3)n3; E4 = (R4)n4; E5 = (R5)n5; R1-5 = hydrogen, deuterium, halogen, cyano, C6-12 aryl, C5-12 heteroaryl, C1-5 alkyl, C1-5 haloalkyl, C1-5 deuterated alkyl, C3-12 trialkylsilyl). Further, (n1, n2 represents the number of substituents R1 and R2 resp.; n1, n2 = 1-8, when n1 or n2 is greater than 1, any two R’s are the same or different, optionally, any two adjacent R’s form a ring; n3 represents the number of substituent R3, n3 = 1-6, when n3 is greater than 1, any two R3 are the same or different, optionally, any two adjacent R3 form a ring; n4 represents the number of substituent R4, n4 = 1-3, when n4 is greater than 1, any two R4 are the same or different, any optionally, any two adjacent R4 form a ring). Also, (n5 represents the number of substituent R5, n5 = 1-4, when n5 is greater than 1, any two R5 is the same or different, optionally, any two adjacent R5 form a ring; L, L1-4 = a single bond, (un)substituted [C6-30 arylene, C3-30 heteroarylene]; Ar1 and Ar2 = (un)substituted [C6-30 aryl, C3-30 heteroaryl]; the substituents in the U1, U2, L, L1-4, Ar1 and Ar2 = deuterium, halogen, cyano, C3-20 heteroaryl, C6-20 aryl, C3-12 trialkylsilyl, C1-10 alkyl, C1-10 haloalkyl, C1-10 deuterated alkyl, C3-10 cycloalkyl, C2-10 heterocycloalkyl or C1-10 alkoxy; optionally, in Ar1 and Ar2, any two adjacent substituents form a ring). The inventive compound having a fused heteroaromatic ring as a hole transporting group and a nitrogen-containing heteroaryl group as an electron transporting group is suitable for use in an organic electroluminescent device, and the performance of the organic electroluminescent device can be significantly improved. The experimental process involved the reaction of 7-Bromo-2-phenylbenzo[d]oxazole(cas: 1268137-13-8).Category: benzoxazole

The Article related to heterocyclic nitrogen compound preparation hole transport material oled, Heterocyclic Compounds (More Than One Hetero Atom): Triazines and other aspects.Category: benzoxazole

Referemce:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

On March 12, 2019, Xu, Fawang; Xu, Yulin; Zhang, Heng; Li, Yanlong; Zhang, Xin; Yu, Hao published a patent.Quality Control of 7-Bromo-2-phenylbenzo[d]oxazole The title of the patent was Preparing method and application of umbrella-shaped novel luminescent material containing pyrrole structure. And the patent contained the following:

The invention disclosed a kind of umbrella-shaped novel luminescent material containing pyrrole structure, its preparation method and application. The claimed compound is shown in structure I (Ar = (un)substituted C6-60 aryl, containing one or more N, O, or S (un)substituted heteroaryl). The claimed compound is prepared via multiple steps (procedure given). The prepared compound can be used in OLED with high mol. stability, excellent photoelec. properties, high heat stability, low drive voltage, high efficiency, and long service life. The experimental process involved the reaction of 7-Bromo-2-phenylbenzo[d]oxazole(cas: 1268137-13-8).Quality Control of 7-Bromo-2-phenylbenzo[d]oxazole

The Article related to umbrella shaped pyrrole luminescent substance preparation oled, Heterocyclic Compounds (One Hetero Atom): Pyrroles and Pyrrolizines and other aspects.Quality Control of 7-Bromo-2-phenylbenzo[d]oxazole

Referemce:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

On January 20, 2016, Lee, Ha-Rim; Farhanullah; Lee, JiSoo; Jajoo, Rahul; Kong, Sun-Young; Shin, Jae-Yeon; Kim, Jae-Ouk; Lee, Jiyoun; Lee, Jeewoo; Kim, Hyun-Jung published an article.Recommanded Product: 1268137-13-8 The title of the article was Discovery of a Small Molecule that Enhances Astrocytogenesis by Activation of STAT3, SMAD1/5/8, and ERK1/2 via Induction of Cytokines in Neural Stem Cells. And the article contained the following:

Identification of small mols. that direct neural stem cells (NSCs) into specific cell types would be helpful to understand the mol. mechanisms involved in regulation of NSC fate, and facilitate the development of therapeutic applications. In the current study, we developed and screened small mols. that can modulate the fate of NSCs that are derived from rat fetal cortex. Among these compounds, compounds 5 and 6 successfully differentiated NSCs into astrocytes and neurons, resp. Compound 5 induced astrocytogenesis by increasing expression of interleukin-6, bone morphogenetic protein 2 and leukemia inhibitory factor and through consequent phosphorylation of signal transducer and activator of transcription 3 and Sma- and Mad-related protein 1/5/8 in NSCs. In addition, compound 5 increased the expression of fibroblast growth factor (FGF) 2 and FGF8 which may regulate the branching and morphol. of astrocytes. Taken together, our results suggest that these small mols. can serve as a useful tool to study cell fate determination in NSCs and be used as an inexpensive alternative to cytokines to study mechanisms of astrocytogenesis. The experimental process involved the reaction of 7-Bromo-2-phenylbenzo[d]oxazole(cas: 1268137-13-8).Recommanded Product: 1268137-13-8

The Article related to benzothiazole derivative preparation structure activity astrocytogenesis stat3 smad erk, astrocytogenesis, differentiation, neural stem cells, neurodegeneration, neurological agents, structure−activity relationships and other aspects.Recommanded Product: 1268137-13-8

Referemce:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

On November 15, 2021, Jie, liu; Ye, Wan; Xu, Jiang-Ping; Wang, Hai-Tao; Li, Xiao-Fang; Wang, Wen-Ya; Zhou, Zhong-Zhen published an article.Category: benzoxazole The title of the article was Discovery of novel trimethoxyphenylbenzo[d]oxazoles as dual tubulin/PDE4 inhibitors capable of inducing apoptosis at G2/M phase arrest in glioma and lung cancer cells. And the article contained the following:

To discover PDE4/tubulin dual inhibitors with novel skeleton structures, 7-trimethoxyphenylbenzo[d]oxazoles I [R1 = R2 = H, MeO; R3 = C6H5, 4-MeO-C6H4, 3-F-C6H4, etc] and 4-trimethoxyphenylbenzo[d]oxazoles II [R4 = C6H5, 3,4-MeO-C6H3, 4-F-C6H4, etc] were designed and synthesized by migrating the trimethoxyphenyl group of TH03 to the benzo[d]oxazole moiety. Among these compounds, approx. half of them displayed good antiproliferative activities against glioma (U251) and lung cancer (A549 and H460) cell lines. The structure-activity relationships of trimethoxyphenylbenzo[d]oxazoles led to the identification of I [R1 = H; R2 = MeO; R3 = 1H-indol-5-yl] bearing indol-5-yl side-chain as a novel dual PDE4/tubulin inhibitor, which exhibited satisfactory antiproliferative activities against glioma (IC50 = 300 ± 50 nM) and lung cancer (average IC50 = 39.5 nM) cells. Further investigations revealed that I [R1 = H; R2 = MeO; R3 = 1H-indol-5-yl] induced apoptosis at G2/M phase arrest and disrupted the microtubule network. The preliminary mechanism of action showed that I [R1 = H; R2 = MeO; R3 = 1H-indol-5-yl] down-regulated the expression of cyclin B1 and its upstream regulator gene cdc25C in A549. The experimental process involved the reaction of 7-Bromo-2-phenylbenzo[d]oxazole(cas: 1268137-13-8).Category: benzoxazole

The Article related to trimethoxyphenylbenzoxazole preparation tubulin inhibitor antiproliferative sar, antiproliferative activities, apoptosis, cell cycle arrest, dual pde4/tubulin inhibitor, trimethoxyphenylbenzo[d]oxazole and other aspects.Category: benzoxazole

Referemce:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

On June 1, 2012, Wu, Mingyue; Hu, Xiong; Liu, Juan; Liao, Yunfeng; Deng, Guo-Jun published an article.Product Details of 1268137-13-8 The title of the article was Iron-Catalyzed 2-Arylbenzoxazole Formation from o-Nitrophenols and Benzylic Alcohols. And the article contained the following:

The iron-catalyzed 2-arylbenzoxazole formation from o-nitrophenols and benzylic alcs. using hydrogen transfer is described. Various 2-arylbenzoxazoles were selectively obtained in good to excellent yields. The reaction tolerated a wide range of functionalities. The alc. oxidation, nitro reduction, condensation, and dehydrogenation were realized in a cascade without external reducing reagent and oxidant. The experimental process involved the reaction of 7-Bromo-2-phenylbenzo[d]oxazole(cas: 1268137-13-8).Product Details of 1268137-13-8

The Article related to nitrophenol benzylic alc iron oxidation reduction condensation dehydrogenation cascade, arylbenzoxazole preparation, oxidation reduction condensation dehydrogenation cascade catalyst iron dppf and other aspects.Product Details of 1268137-13-8

Referemce:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

On October 6, 2020, Jung, Ho Yeong; Park, Yong Uk; Kim, Nam Su; Lee, Nam Geol published a patent.Recommanded Product: 7-Bromo-2-phenylbenzo[d]oxazole The title of the patent was Preparation of fluorene derivatives as organic electronic device materials. And the patent contained the following:

Disclosed are compounds I [R1 – R4 are independently H, deuterium, tritium, halo, cyano, nitro, (un)substituted aryl, (un)substituted fluorenyl, (un)substituted heterocyclyl, (un)substituted alicyclyl, (un)substituted alkyl, (un)substituted alkenyl, (un)substituted alkynyl, (un)substituted alkoxy, (un)substituted aryloxy, or N-(L1-Ar1)(L2-Ar2); at least one of R1 and R2 is N-(L1-Ar1)(L2-Ar2) and R3 and R4 may combine together with adjacent groups to form a ring; a and b are independently 0-4; L1 and L2 are independently single bond, (un)substituted arylene, (un)substituted fluorenylene, (un)substituted heterocyclylene, or (un)substituted alicyclylene; Ar1 and Ar2 are independently (un)substituted aryl, (un)substituted fluorenyl, (un)substituted heterocyclyl, or (un)substituted alicyclyl]. Example compound II was prepared by palladium-catalyzed cross-coupling reaction of N,9-diphenyl-9H-fluoren-9-amine with bromobenzene in 88% yield. Electroluminescent device comprising an invention compound showed improvements in efficiency, driving voltage, and life span compared to device using previously reported compound The experimental process involved the reaction of 7-Bromo-2-phenylbenzo[d]oxazole(cas: 1268137-13-8).Recommanded Product: 7-Bromo-2-phenylbenzo[d]oxazole

The Article related to fluorene derivative preparation organic electronic device material, Benzene, Its Derivatives, and Condensed Benzenoid Compounds: Dibenzocyclobutenes, Acenaphthenes, Fluorenes, and Their Benzo Analogs, Such As Fluoranthenes and other aspects.Recommanded Product: 7-Bromo-2-phenylbenzo[d]oxazole

Referemce:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

On May 4, 2017, Ahn, Hee-Choon; Cho, Sang-Hee published a patent.Related Products of 1268137-13-8 The title of the patent was Electron buffering materials, electron transport materials and organic electroluminescent device comprising the same. And the patent contained the following:

Electron buffering materials and electron transport materials are described by the general formula I (X1 = -N:, -NR7-, -O- or -S-; Y1 = -N:, -NR8-, -O- or -S- with the restriction that when X1 = -N:, Y1 = -NR8-, -O-, or -S-, when X1 = -NR7-, Y1 = -N:, -O- or -S-, X1 and Y1 may not both be -O- or -S-, and one of X1 and Y1 may not be -O- when the other is -S-; R1 = (un)substituted C6-30 aryl, or (un)substituted 3-30 membered heteroaryl; R2-4, R7, and R8 = independently selected H, D, halo, cyano, (un)substituted C1-30 alkyl, (un)substituted C6-30 aryl, (un)substituted 3-30 membered heteroaryl, etc.; b = 1 or 2; c = 1 or 2; and d = 1-4). Organic electroluminescent devices employing the materials are also described. The experimental process involved the reaction of 7-Bromo-2-phenylbenzo[d]oxazole(cas: 1268137-13-8).Related Products of 1268137-13-8

The Article related to electron buffering transport heterocyclic compound organic electroluminescent device, Optical, Electron, and Mass Spectroscopy and Other Related Properties: Spectrometers and Optical Apparatus and other aspects.Related Products of 1268137-13-8

Referemce:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem