Category: 6797-13-3

In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called The conversion of mixed N,O-diacylated 2-aminophenols to 2-substituted benzoxazoles, published in 1999-05-01, which mentions a compound: 6797-13-3, mainly applied to acyl aminophenol cyclocondensation benzoxazole preparation; alkylbenzoxazole preparation; phenylbenzoxazole preparation, Quality Control of 2-Ethylbenzo[d]oxazole.

When N,O-diacylated 2-aminophenols that have different acyl substituents on nitrogen and oxygen are treated with p-toluenesulfonic acid in refluxing xylenes, mixtures of benzoxazoles are produced. The major product is the benzoxazole in which the substituent at the 2-position is derived from the acyl group on nitrogen. This product may arise from an unusual case of acid-mediated neighboring amido-group assisted hydrolysis.

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Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 6797-13-3, is researched, SMILESS is CCC1=NC2=CC=CC=C2O1, Molecular C9H9NOJournal, European Journal of Organic Chemistry called Facile and Efficient Synthesis of Benzoxazoles and Benzimidazoles: the Application of Hantzsch Ester 1,4-Dihydropyridines in Reductive Cyclization Reactions, Author is Xing, Rui-Guang; Li, Ya-Nan; Liu, Qiang; Meng, Qing-Yuan; Li, Jing; Shen, Xiao-Xia; Liu, Zhengang; Zhou, Bo; Yao, Xiaojun; Liu, Zhong-Li, the main research direction is benzoxazole preparation; benzimidazole preparation; nitrophenyl amide reductive cyclization palladium Hantzsch ester.Product Details of 6797-13-3.

Benzoxazoles and benzimidazoles were efficiently synthesized by the reaction of functionalized ortho-substituted nitrophenyl esters or amides catalyzed by Pd/C in presence of Hantzsch ester (HEH). Especially, working in the presence of the same substituents, benzimidazoles could be obtained in higher yields with respect to the corresponding benzoxazoles. Moreover, in the present work, the recycling of Pd/C was studied and was shown to maintain its high catalytic activity over five runs. On the basis of our exptl. results and DFT calculations, a plausible reaction mechanism was proposed.

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Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Li, Zhen; Fang, Chengtao; Zheng, Yannan; Qiu, Guanyinsheng; Li, Xiaofang; Zhou, Hongwei researched the compound: 2-Ethylbenzo[d]oxazole( cas:6797-13-3 ).Synthetic Route of C9H9NO.They published the article 《Multicatalytic Beckmann rearrangement of 2-hydroxylarylketone oxime: Switchable synthesis of benzo[d]oxazoles and N-(2-hydroxylaryl)amides》 about this compound( cas:6797-13-3 ) in Tetrahedron Letters. Keywords: hydroxybenzene ketoxime organocatalyst zinc chloride catalyst Beckmann rearrangement; benzoxazole preparation; hydroxyaryl amide preparation. We’ll tell you more about this compound (cas:6797-13-3).

A switchable synthesis route was developed for benzo[d]oxazole derivatives and (2-hydroxylaryl)benzamide from 2-hydroxylbenzeneketoxime using organomols. (BOP-Cl, and CNC) and Lewis acid cocatalyzed Beckmann rearrangement (BR) reaction. Further, this reaction was switched using different organocatalysts.

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Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

Name: 2-Ethylbenzo[d]oxazole. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: 2-Ethylbenzo[d]oxazole, is researched, Molecular C9H9NO, CAS is 6797-13-3, about Efficient one-pot synthesis of benzoxazole derivatives catalyzed by nickel supported silica. Author is Maddila, Suresh; Jonnalagadda, Sreekanth B..

A simple and efficient method was developed for the synthesis of benzoxazoles from 2-aminophenol and substituted aldehydes in the presence of a catalytic amount of nickel supported silica at room temperature

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Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Godishnik na Sofiiskiya Universitet Sv. Kliment Okhridski, Khimicheski Fakultet called Hydroxyalkylation and alkylidenation of 2-ethyl- and 2-benzylbenzoxazole, Author is Dryanska, V.; Ivanov, Kh., which mentions a compound: 6797-13-3, SMILESS is CCC1=NC2=CC=CC=C2O1, Molecular C9H9NO, Related Products of 6797-13-3.

Hydroxyalkylation of 2-ethylbenzoxazole (I; R = Et) with R1COR2[R1 = Ph; R2 = H, Me, Ph; R1 = p-MeC6H4, R2 = H, R1R2 = (CH2)4, (CH2)5] in liquid NH3 containing LiNH2 afforded ≤61% yields of the corresponding I (R = CHMeCR1R2OH), which were dehydrated to I (R = CMe:CR1R2) in ≤77% yield by HSO4 in HOAc. Reaction of I (R = CH2Ph) with R1C6H4CHO (R1 = H, o-Cl, p-Cl, p-Me, p-MeO) afforded the corresponding I (R = CPh:CHC6H4R1) in 26-47% yield with NaNH2, and with LiNH2 gave I [R = CHPhCH(OH)C6H4R1; R1 = H, p-Me]. Condensing I (R = Me, CH2Ph) and 2-methylbenzothiazole (II; R = Me) with XC6H4CHO (X = o-Br, p-Br) in the presence of NaNH2 gave I (R = CR1:CHC6H4X; R1 = H, Ph) and II (R = CH:CHC6H4X) in ≤67% yield. I (R = CMe:CHC6H4X; X = H, p-Me, o-Cl, p-Cl, p-Br, p-MeO) were prepared in 6-17% yield by condensing I (R = Et) with the resp. XC6H4CHO in the presence of NaNH2.

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Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: 2-Ethylbenzo[d]oxazole, is researched, Molecular C9H9NO, CAS is 6797-13-3, about Synthesis of Highly Functionalized N,N-Diarylamides by an Anodic C,N-Coupling Reaction.Recommanded Product: 6797-13-3.

An innovative, sustainable and straightforward protocol was reported for the synthesis of N,N-diarylamides I [R1 = H, 3-Me, 4-Me, 5-Me, 3-Br, 4-Cl; R2 = H, Me, Et] equipped with nonprotected hydroxyl groups by using electrosynthesis. The concept allowed the application of various substrates furnishing diarylamides with yields up to 57 % within a single and direct electrolytic protocol. The method was thereby easy to conduct in an undivided cell with constant current conditions offering a versatile and short-cut alternative to conventional pathways.

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Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 2-Ethylbenzo[d]oxazole( cas:6797-13-3 ) is researched.SDS of cas: 6797-13-3.Zhao, Yan-qin; Chen, Jian-xin published the article 《Groups transfer reaction of imidazolinium salts as tetrahydrofolate model compounds》 about this compound( cas:6797-13-3 ) in Gaodeng Xuexiao Huaxue Xuebao. Keywords: imidazolinium salt transfer reaction tetrahydrofolate model compound. Let’s learn more about this compound (cas:6797-13-3).

Tetrahydrofolate (THF) coenzyme is the Me source of the methylation for many materials (including the DNA and RNA) in the living body to transfer one carbon unit for the biosynthesis and metabolism The study on mimicking the characteristics of the THF coenzyme can contribute significantly to our understanding of the mechanism of action of the coenzymes themselves and provide a valuable effective reagents for groups transfer reaction for practical utility. Owing to such interests, two kinds of imidazolinium iodides 7 and 8 were prepared as the tetrahydrofolate model compounds at the oxidation level of formate, which reacting with bifunctional nucleophiles led to three or five carbon fragments be transferred completely and compound 7 reacts with monofunctional nucleophiles to afford the products transferred part of three carbon fragments. When the reaction of compound 17 as formaldehyde oxidation levels model compound of THF with amines carried out, the four carbon fragments with nitro were completely transferred. The reduction of model compound 7 was also studied. The procedure have mimicked and expanded the function of biochem. transfer of one carbon fragment of the tetrahydrofolate coenzyme and produced some new synthesis methods and reagents which can be applied to organic synthesis.

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Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

Meyers, A. I.; Yamamoto, Yukio published the article 《Stereoselectivity in the aldol reaction. The use of chiral and achiral oxazolines as their boron azaenolates》. Keywords: aldol stereoselectivity; oxazoline boron enolate aldehyde; ester hydroxy stereoselectivity.They researched the compound: 2-Ethylbenzo[d]oxazole( cas:6797-13-3 ).Related Products of 6797-13-3. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:6797-13-3) here.

Chiral oxazolines, as their B enolates derived from various B triflates, react with aldehydes to give erythro-selectivity (>97%) with enantiomeric purities of 50-60%. Achiral oxazolines as their B enolates derived from diisopinocamphenylborane give, on reaction with aldehydes, β-hydroxy esters with high threo-selectivity (>90%) in 77-85% enantiomeric excess. A variety of structurally different oxazolines were also studied and many show high erythro-selectivity.

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Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

Computed Properties of C9H9NO. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: 2-Ethylbenzo[d]oxazole, is researched, Molecular C9H9NO, CAS is 6797-13-3, about Ring opening of benzoxazoles with allylic Grignard reagents: synthesis of N-diallylalkyl-o-aminophenols.

Benzoxales I (R = H, Me, Et, PhCH2) react cleanly with allylic Grignard reagents prepared from R1CH:CR2CH2X (X = Br, R2 = H, R1 = H, Me, X = Cl, R1 = H, R2 = Me) with ring opening to give good yields of N-(diallylalkyl)-o-aminophenols 2-HOC6H4NHCR(CHR1CR2:CH2)2. A plausible mechanism is discussed.

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Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called A divergent and selective synthesis of isomeric benzoxazoles from a single N-Cl imine, published in 2011-12-02, which mentions a compound: 6797-13-3, Name is 2-Ethylbenzo[d]oxazole, Molecular C9H9NO, Application In Synthesis of 2-Ethylbenzo[d]oxazole.

A divergent and regioselective synthesis of either 3-substituted benzoisoxazoles or 2-substituted benzoxazoles from readily accessible ortho-hydroxyaryl N-H ketimines is described. The reaction proceeds in two distinct pathways through a common N-Cl imine intermediate: (a) N-O bond formation to form benzoisoxazole under anhydrous conditions and (b) NaOCl mediated Beckmann-type rearrangement to form benzoxazole, resp. The reaction path also depends on the electronic nature of the aromatic ring, with the electron-rich aromatic rings favoring the rearrangement and the electron-deficient rings favoring the N-O bond formation. A Beckmann-type rearrangement mechanism via net [1,2]-aryl migration for the formation of 2-substituted benzoxazole is proposed.

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Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem