Category: ethers-buliding-blocks

On September 16, 1993, James, Donald R.; Baker, Don R.; Mielich, Steven D.; Michaely, William J.; Fitzjohn, Steven; Knudsen, Christopher G.; Mathews, Christopher; Gerdes, John M. published a patent.Category: ethers-buliding-blocks The title of the patent was Preparation of arylindazoles and their use as herbicides. And the patent contained the following:

Title compounds I (R1 = H, halo; R2 = H, O2N, halo, alkyl, NC, alkylthio, alkylsulfinyl, alkylsulfonyl, alkoxy, AcNH, H2N; R3 = H, halo, haloalkyl, haloalkoxy, NC, H2N, R13OyS wherein R13 = alkyl, haloalkyl, y = 0-2; R4, R5, R6 = H, halo, O2N, HO, NC, alkyl, alkoximinoalkyl, hydroxyalkyl, haloalkyl, CHO, etc.; R7 = H, halo, alkyl, O2N; R8 = H, halo; X = N, R14C wherein R14 = H, halo, haloalkyl, NC, etc.) and salts thereof, are prepared 6-Imidazolol in DMF was reacted with K2CO3 followed by MeI to give 6-methoxyindazole which in DMF was treated with 3,5,4-Cl2FC6H2CF3 and K2CO3 to give I (R1 = R4 = R5 = R7 = R8 = H, R2 = Cl, R3 = F3C, R6 = MeO, X = ClC) (II) in preemergence application II at 4 kg/ha showed 100% herbicidal effect against green foxtail, watergrass, wild mustard, velvetleaf, etc. A large number of I were prepared and evaluated both pre- and postemergence. The experimental process involved the reaction of 4-Bromo-5-methoxy-2-methylaniline(cas: 152626-77-2).Category: ethers-buliding-blocks

The Article related to indazole aryl preparation herbicide, Heterocyclic Compounds (More Than One Hetero Atom): Other 5-Membered Rings, Two Or More Hetero Atoms and other aspects.Category: ethers-buliding-blocks

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On September 16, 2022, Pan, Yue; Liu, Zhengyi; Zou, Peng; Chen, Yali; Chen, Yiyun published an article.Category: ethers-buliding-blocks The title of the article was Hypervalent Iodine Reagents Enable C(sp2)-H Amidation of (Hetero)arenes with Iminophenylacetic Acids. And the article contained the following:

The sulfonamidyl (hetero)arenes synthesis by the C(sp2)-H amidation from bench-stable amidyl-iminophenylacetic acids was reported. The hypervalent iodine reagents covalently activated iminophenylacetic acids for the facile sulfonamidyl radical generation under mild photocatalytic oxidative conditions. Diversified indoles, pyrroles, imidazopyridines and fused arenes underwent the C(sp2)-H amidation with excellent chemoselectivity and regioselectivity. This reaction performed well under neutral aqueous conditions with potential biol. applications. The experimental process involved the reaction of 2-Methoxynaphthalene(cas: 93-04-9).Category: ethers-buliding-blocks

The Article related to amidyl iminophenylacetic acid hetero arene ruthenium catalyst photochem sulfonamidation, hetero aryl benzene sulfonamide preparation chemoselective regioselective, Heterocyclic Compounds (One Hetero Atom): Indoles, Indolizines, Carbazoles, and Other Arenopyrroles and other aspects.Category: ethers-buliding-blocks

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Liang, Shengzong; Hammond, Luisa; Xu, Bo; Hammond, Gerald B. published an article in 2016, the title of the article was Commercial Supported Gold Nanoparticles Catalyzed Alkyne Hydroamination and Indole Synthesis.Formula: C15H13NO And the article contains the following content:

Com. gold nanoparticles supported on titanium dioxide (TiO2) were found to be a highly efficient catalyst for alkyne hydroamination. Terminal alkynes could easily undergo intermol. hydroamination with low catalyst loadings (0.2 mol% Au) under solvent-free conditions. Indoles were efficiently synthesized using microwave heating through intramol. hydroamination. The experimental process involved the reaction of 2-((4-Methoxyphenyl)ethynyl)aniline(cas: 157869-15-3).Formula: C15H13NO

The Article related to hydroamination alkyne alkynylaniline gold nanoparticle titanium dioxide catalyst, indole preparation intramol hydroamination microwave assisted, Heterocyclic Compounds (One Hetero Atom): Indoles, Indolizines, Carbazoles, and Other Arenopyrroles and other aspects.Formula: C15H13NO

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Ether – Wikipedia,
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On November 30, 2020, He, Jiaming; Yu, Yue; Guo, Pengfeng; Liu, Xiang; Zhu, Baofu; Cao, Hua published an article.Quality Control of 2-((4-Methoxyphenyl)ethynyl)aniline The title of the article was Palladium-Catalyzed C-N Bond Formation: A Straightforward Alkoxymethylation Process for the Synthesis of the C1 and C3-Dialkoxy Indoles. And the article contained the following:

A novel approach for the synthesis of the C1 and C3-dialkoxy indoles was developed for using 2-(phenylethynyl)aniline with formaldehyde and alcs. under the catalysis of acid and palladium acetate. This multicomponent reaction that provided a straightforward alkoxymethylation process constructed substituted indoles was expected to be an important method for the synthesis of indole derivatives The experimental process involved the reaction of 2-((4-Methoxyphenyl)ethynyl)aniline(cas: 157869-15-3).Quality Control of 2-((4-Methoxyphenyl)ethynyl)aniline

The Article related to phenylethynyl aniline formaldehyde alc palladium carbon nitrogen bond formation, alkoxymethyl phenylindolyl methanol preparation regioselective, Heterocyclic Compounds (One Hetero Atom): Indoles, Indolizines, Carbazoles, and Other Arenopyrroles and other aspects.Quality Control of 2-((4-Methoxyphenyl)ethynyl)aniline

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Ether | (C2H5)2O – PubChem

Li, Heng; Zhu, Yan; Jiang, Cong; Wei, Jia; Liu, Ping; Sun, Peipei published an article in 2022, the title of the article was HOAc catalyzed three-component reaction for the synthesis of 3,3′-(arylmethylene)bis(1H-indoles).SDS of cas: 157869-15-3 And the article contains the following content:

An efficient HOAc catalyzed three-component cyclization and cascade condensation of o-alkynyl anilines with aromatic aldehydes of 2-(arylethynyl)anilines with arylaldehydes was achieved, which leads to the generation of 3,3′-(arylmethylene)bis(1H-indoles) I [R1 = Ph, 4-MeC6H4, 4-FC6H4, etc.; R2 = 5-Me, 5-Cl, 6-Me, etc.; R3 = Ph, 4-MeC6H4, 4-BrC6H4, etc.] with good to excellent yields and high regioselectivity under transition-metal-free conditions. Four new C-C and C-N bonds were effectively formed in a one-pot procedure. The experimental process involved the reaction of 2-((4-Methoxyphenyl)ethynyl)aniline(cas: 157869-15-3).SDS of cas: 157869-15-3

The Article related to arylmethylene bis indole green regioselective preparation, ortho alkynyl aniline benzaldehyde three component cyclization cascade condensation, Heterocyclic Compounds (One Hetero Atom): Indoles, Indolizines, Carbazoles, and Other Arenopyrroles and other aspects.SDS of cas: 157869-15-3

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Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Ye, Yibin; Cheung, Kelvin Pak Shing; He, Lisi; Tsui, Gavin Chit published an article in 2018, the title of the article was Domino cyclization/trifluoromethylation of 2-alkynylanilines using fluoroform-derived CuCF3: synthesis of 3-(trifluoromethyl)indoles.Related Products of 157869-15-3 And the article contains the following content:

By employing easily accessible 2-alkynylanilines and the well-established fluoroform-derived CuCF3 reagent, a novel class of 3-(trifluoromethyl)indoles could be synthesized in good yields with no ambiguity of the CF3 position. The method utilized a domino cyclization/trifluoromethylation strategy to construct the indole cores with the concomitant installation of the CF3 group. The ultimate source of CF3 is the low-cost industrial byproduct fluoroform (CF3H). The experimental process involved the reaction of 2-((4-Methoxyphenyl)ethynyl)aniline(cas: 157869-15-3).Related Products of 157869-15-3

The Article related to tosyl trifluoromethyl indole preparation, alkynyl aniline preparation copper trifluoromethane regioselective trifluoromethylation cyclization, Heterocyclic Compounds (One Hetero Atom): Indoles, Indolizines, Carbazoles, and Other Arenopyrroles and other aspects.Related Products of 157869-15-3

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Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

On January 31, 2021, Wang, Dan; Wang, Shi-Chao; Hao, Wen-Juan; Tu, Shu-Jiang; Jiang, Bo published an article.Category: ethers-buliding-blocks The title of the article was Dual Palladium/Scandium Catalysis toward Rotationally Hindered C3-Naphthylated Indoles from β-Alkynyl Ketones and o-Alkynyl Anilines. And the article contained the following:

A new dual palladium/scandium catalysis starting from β-alkynyl ketones and o-alkynyl anilines was reported for the first time, leading to the atom-economic synthesis of rotationally hindered C3-naphthylated indoles I [R1 = Ph, 4-MeC6H4, 4-FC6H4, etc.; R2 = H, 6-F, 7-Me; R3 = cyclopropyl, Ph, 2-naphthyl, etc.; R4 = H, 5-Me, 5-Cl] in moderate to good yields and high regioselectivity. This method could tolerate normal air conditions, and featured the use of palladium/scandium cooperative catalysts without any ligand, facile double annulation involving various internal alkynes, and good functional group tolerance. The experimental process involved the reaction of 2-((4-Methoxyphenyl)ethynyl)aniline(cas: 157869-15-3).Category: ethers-buliding-blocks

The Article related to rotationally hindered c3 naphthylated indole regioselective preparation, ketone alkynyl aniline double annulation palladium catalyst scandium, Heterocyclic Compounds (One Hetero Atom): Indoles, Indolizines, Carbazoles, and Other Arenopyrroles and other aspects.Category: ethers-buliding-blocks

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

On January 19, 2022, Jacob, Nicolas; Zaid, Yassir; Oliveira, Joao C. A.; Ackermann, Lutz; Wencel-Delord, Joanna published an article.Recommanded Product: 93-04-9 The title of the article was Cobalt-Catalyzed Enantioselective C-H Arylation of Indoles. And the article contained the following:

Herein, the unprecedented earth-abundant 3D-metal-catalyzed atroposelective direct arylation was reported, furnishing rare atropoisomeric C2-arylated indoles. Kinetic studies and DFT computation revealed an uncommon mechanism for this asym. transformation, with the oxidative addition being the rate- and enantio-determining step. Excellent stereoselectivities were reached (up to 96% ee), while using an unusual N-heterocyclic carbene-ligand bearing essential remote substituent. Attractive dispersion interactions along with pos. C-H—π interactions exerted by the ligand were identified as key factors to guarante the excellent enantioselection. The experimental process involved the reaction of 2-Methoxynaphthalene(cas: 93-04-9).Recommanded Product: 93-04-9

The Article related to methoxyphenyl indole methanimine chloronaphthalene cobalt catalyst enantioselective arylation, naphthalenyl indole carbaldehyde preparation, Heterocyclic Compounds (One Hetero Atom): Indoles, Indolizines, Carbazoles, and Other Arenopyrroles and other aspects.Recommanded Product: 93-04-9

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Kasama, Kengo; Kanomata, Kyohei; Hinami, Yuya; Mizuno, Karin; Uetake, Yuta; Amaya, Toru; Sako, Makoto; Takizawa, Shinobu; Sasai, Hiroaki; Akai, Shuji published an article in 2021, the title of the article was Chemo- and regioselective cross-dehydrogenative coupling reaction of 3-hydroxycarbazoles with arenols catalyzed by a mesoporous silica-supported oxovanadium.Safety of 2-Methoxynaphthalene And the article contains the following content:

Cross-dehydrogenative coupling between 3-hydroxycarbazoles I(R = H; R1 = H, Br, Me; RR1 = -CH:CH-CH:CH-; R2 = H, Me, Ph, benzyl, acetyl, tolyl) and 2-naphthols II (R3 = 6-MeO, 7-Br, 3-Me, etc.) has been achieved by using a mesoporous silica-supported oxovanadium catalyst. The experimental process involved the reaction of 2-Methoxynaphthalene(cas: 93-04-9).Safety of 2-Methoxynaphthalene

The Article related to hydroxynaphthalenyl carbazole preparation regioselective chemoselective, hydroxycarbazole naphthol coupling reaction oxovanadium catalyst, Heterocyclic Compounds (One Hetero Atom): Indoles, Indolizines, Carbazoles, and Other Arenopyrroles and other aspects.Safety of 2-Methoxynaphthalene

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

On August 6, 2021, Li, Laiqiang; Hou, Zhong-Wei; Li, Pinhua; Wang, Lei published an article.Recommanded Product: 2-Methoxynaphthalene The title of the article was Site-Selective Electrochemical C-H Cyanation of Indoles. And the article contained the following:

An electrochem. approach for the site-selective C-H cyanation of indoles to form indole-carbonitriles I [R1 = CN, Ph; R2 = Me, CN, C(O)OMe, etc.; R3 = H, 4-Me, 5-F, 6-Cl, etc.; R4 = Me, Bn, i-Pr, etc.] employing readily available TMSCN as cyano source has been developed. The electrosynthesis relied on the tris(4-bromophenyl)amine as a redox catalyst, which achieved better yield and regioselectivity. A variety of C2- and C3-cyanated indoles were obtained in satisfactory yields. The reactions were conducted in a simple undivided cell at room temperature and obviated the need for transition-metal reagent and chem. oxidant. The experimental process involved the reaction of 2-Methoxynaphthalene(cas: 93-04-9).Recommanded Product: 2-Methoxynaphthalene

The Article related to carbonitrile indole green regioselective preparation, indole trimethylsilyl cyanide electrochem cyanation tris bromophenyl amine catalyst, Heterocyclic Compounds (One Hetero Atom): Indoles, Indolizines, Carbazoles, and Other Arenopyrroles and other aspects.Recommanded Product: 2-Methoxynaphthalene

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem