Category: 37443-42-8

Li, Zheqi; Jiang, Wenfeng; Wang, Huilong published an article about the compound: Methyl tetrahydrofuran-2-carboxylate( cas:37443-42-8,SMILESS:O=C(C1OCCC1)OC ).Synthetic Route of C6H10O3. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:37443-42-8) through the article.

Me tetrahydro-α-furancarboxylate was prepared by esterification and hydrogenation of α-furancarboxylic acid using Ru-Pd/γ-Al2O3 as catalyst in fixed bed microreactor by a one-step process. Under optimum conditions, the product yield reached 97.2%. The catalyst activity did not deteriorate after 400 h.

Here is a brief introduction to this compound(37443-42-8)Synthetic Route of C6H10O3, if you want to know about other compounds related to this compound(37443-42-8), you can read my other articles.

Reference:
Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Chemoselective calcium-catalyzed direct amidation of carboxylic esters》. Authors are Nguyen, D. Thao; Lenstra, Danny C.; Mecinovic, Jasmin.The article about the compound:Methyl tetrahydrofuran-2-carboxylatecas:37443-42-8,SMILESS:O=C(C1OCCC1)OC).Quality Control of Methyl tetrahydrofuran-2-carboxylate. Through the article, more information about this compound (cas:37443-42-8) is conveyed.

Unactivated carboxylic esters and primary amines undergo calcium-catalyzed direct amide bond formation to afford amides I [R1 = n-Pr, Ph, 4-hydroxybutyl, etc.; R2 = 2-thienyl, Ph, Bn, etc.] in excellent yields under homogeneous conditions in toluene. This green and mild reaction proceeds chemoselectively with esters, whereas related carboxylic acids and amides remain unreactive.

Here is a brief introduction to this compound(37443-42-8)Quality Control of Methyl tetrahydrofuran-2-carboxylate, if you want to know about other compounds related to this compound(37443-42-8), you can read my other articles.

Reference:
Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

Recommanded Product: 37443-42-8. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: Methyl tetrahydrofuran-2-carboxylate, is researched, Molecular C6H10O3, CAS is 37443-42-8, about An efficient synthesis of 3,4-dihydropyridone via a tandem olefin isomerization-ring-closing metathesis reaction. Author is Si, Chong; Fales, Kevin R.; Boyer, Robert D.; George Njoroge, F..

Novel 3,4-dihydropyridones were efficiently prepared via a tandem olefin isomerization-ring-closing metathesis reaction catalyzed by the second-generation Grubbs catalyst. The products were further functionalized at the 5-position, providing an interesting structural motif to be evaluated in medicinal chem.

Here is a brief introduction to this compound(37443-42-8)Recommanded Product: 37443-42-8, if you want to know about other compounds related to this compound(37443-42-8), you can read my other articles.

Reference:
Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

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: 37443-42-8, is researched, SMILESS is O=C(C1OCCC1)OC, Molecular C6H10O3Journal, ACS Catalysis called Copper-Catalyzed Borylative Ring Closing C-C Coupling toward Spiro- and Dispiroheterocycles, Author is Royes, Jordi; Ni, Shaofei; Farre, Albert; La Cascia, Enrico; Carbo, Jorge J.; Cuenca, Ana B.; Maseras, Feliu; Fernandez, Elena, the main research direction is copper catalyst borylative ring closing coupling spiro dispiroheterocycle mechanism; crystal structure mol spiroheterocyclic pendant methylene boronate preparation optimized.Category: benzisoxazole.

The synthesis of spiroheterocyclic structures with a pendant methylene boronate substituent has been accomplished to promote further functionalization. A Cu-catalyzed borylative ring closing C-C coupling of an alkenyl halide is the key step toward the synthesis of [m.n]-spirocycles (m,n = 3-5). Computational studies on the mechanism reproduced all the exptl. trends and explain the enhanced reactivity of systems leading to strained smaller rings. The optimized protocol also gives access to dispirocycle scaffolds, fully characterized by x-ray diffraction.

Here is a brief introduction to this compound(37443-42-8)Category: benzisoxazole, if you want to know about other compounds related to this compound(37443-42-8), you can read my other articles.

Reference:
Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

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 Preparation of γ-butyrolactones by the oxidation of monofunctional derivatives of tetrahydrofuran, published in 1972, which mentions a compound: 37443-42-8, Name is Methyl tetrahydrofuran-2-carboxylate, Molecular C6H10O3, Name: Methyl tetrahydrofuran-2-carboxylate.

Liquid phase oxidation of tetrahydrofurfuryl alc., its formate and acetate, and Me 2-tetrahydrofurancarboxylate, largely at 115°, in 10-25 hr in a flow-type glass reactor gave good yields of γ-butyrolactone or its γ-CH2OH, CH2O2CH, CH2OAc or CO2Me derivatives, resp., HCO2H and succinic acid. Evidently the oxidation occurred at the C2 and C5 positions. Uv light promoted the reaction and allowed its operation at lower temperature The summary yields of the lactones were 72-95%. The last substrate above was oxidized in the presence of Mn(OAc)2.4H2O catalyst at 70°.

Here is a brief introduction to this compound(37443-42-8)Name: Methyl tetrahydrofuran-2-carboxylate, if you want to know about other compounds related to this compound(37443-42-8), you can read my other articles.

Reference:
Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

Name: Methyl tetrahydrofuran-2-carboxylate. 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: Methyl tetrahydrofuran-2-carboxylate, is researched, Molecular C6H10O3, CAS is 37443-42-8, about Palladium-catalyzed asymmetric hydrogenation of furan carboxylic acids. Author is Maris, Mihaela; Huck, Wolf-Rudiger; Mallat, Tamas; Baiker, Alfons.

Enantioselective hydrogenation of aromatic and heteroaromatic compounds is the field where chirally modified metal hydrogenation catalysts have the biggest potential compared to homogeneous chiral transition metal complexes. Here we report the hydrogenation of furan and benzofuran carboxylic acids over a cinchonidine-modified 5 wt% Pd/Al2O3 catalyst. (S)-Tetrahydrofuran-2-carboxylic acid was synthesized in 4 h at rt and 30 bar with 95% yield and 32% ee. The ee was lower in the hydrogenation of methylfuran carboxylic acids but up to 100% de was achieved. In the slow hydrogenation of benzofuran-2-carboxylic acid, the ee went up to 50% at 29% yield. The potential application of the method is limited by the competing hydrogenation of the quinoline rings of cinchonidine in the latter reaction, necessitating the feeding of small amounts of cinchonidine during reaction. Still, this simple method using an easily available chiral modifier and catalyst affords the highest rate and ee reported so far in the catalytic asym. hydrogenation of furan and benzofuran carboxylic acids, and it may be an attractive route in combination with optical resolution We assume that the reaction mechanism is analogous to that described for α,β-unsaturated carboxylic acids over the same catalyst, involving a 1:2-type interaction between the cinchonidine and the acid dimer.

Here is a brief introduction to this compound(37443-42-8)Name: Methyl tetrahydrofuran-2-carboxylate, if you want to know about other compounds related to this compound(37443-42-8), you can read my other articles.

Reference:
Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: Methyl tetrahydrofuran-2-carboxylate, is researched, Molecular C6H10O3, CAS is 37443-42-8, about Bulky Diarylammonium Arenesulfonates as Selective Esterification Catalysts, the main research direction is ester preparation; carboxylic acid esterification alc diarylammonium arenesulfonate catalyst.Product Details of 37443-42-8.

More environmentally benign alternatives to current chem. processes, especially large-scale, fundamental reactions such as ester condensations, are highly desirable for many reactions. Bulky diarylammonium pentafluorobenzenesulfonates and tosylates serve as extremely active dehydration catalysts for the ester condensation reaction of carboxylic acids with equimolar amounts of sterically demanding alcs. and acid-sensitive alcs. Typically, the esterification reaction is performed in heptane by heating at 80 °C in the presence of 1 mol % of the catalyst without removing water. Esterification with primary alcs. proceeds without solvents even at room temperature Furthermore, 4-(N-mesitylamino)polystyrene resin-bound pentafluorobenzenesulfonate can be recycled more than 10 times without activity loss.

There is still a lot of research devoted to this compound(SMILES：O=C(C1OCCC1)OC)Product Details of 37443-42-8, and with the development of science, more effects of this compound(37443-42-8) can be discovered.

Reference:
Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: Methyl tetrahydrofuran-2-carboxylate( cas:37443-42-8 ) is researched.Application In Synthesis of Methyl tetrahydrofuran-2-carboxylate.Mendes da Silva, Joaquim Fernando; Walters, Marcus; Al-Damluji, Saad; Ganellin, C. Robin published the article 《Molecular features of the prazosin molecule required for activation of Transport-P》 about this compound( cas:37443-42-8 ) in Bioorganic & Medicinal Chemistry. Keywords: prazosin analog preparation activation Transport P amine. Let’s learn more about this compound (cas:37443-42-8).

Closely related structural analogs of prazosin have been synthesized and tested for inhibition and activation of Transport-P in order to identify the structural features of the prazosin mol. that appear to be necessary for activation of Transport-P. So far, all the compounds tested are less active than prazosin. It is shown that the structure of prazosin appears to be very specific for the activation. Only quinazolines have been found to activate, and the presence of the 6,7-dimethoxy and 4-amino groups appears to be critically important.

There is still a lot of research devoted to this compound(SMILES：O=C(C1OCCC1)OC)Application In Synthesis of Methyl tetrahydrofuran-2-carboxylate, and with the development of science, more effects of this compound(37443-42-8) can be discovered.

Reference:
Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

Application In Synthesis of Methyl tetrahydrofuran-2-carboxylate. 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: Methyl tetrahydrofuran-2-carboxylate, is researched, Molecular C6H10O3, CAS is 37443-42-8, about The enzymatic resolution of 1-(4-chlorophenyl)ethylamine by Novozym 435 to prepare a novel triazolopyrimidine herbicide.

The kinetic resolution of (R,S)-1-(4-chlorophenyl)ethylamine was accomplished using a com. lipase from Candida antarctica (Novozym 435). The performance of this lipase was investigated for the enantioselective amidation of (R,S)-1-(4-chlorophenyl)ethylamine, leaving the target product (S)-1-(4-chlorophenyl)ethylamine in its unreacted form. The effects of various types of solvents and an acyl donor, the molar ratio of the substrate to the acyl donor, and the reaction temperature were studied. The optimum reaction conditions were found to result in amidation with Me 2-tetrahydrofuroate at 40°C in Me tert-Bu ether, with a substrate/acyl donor molar ratio of 1:2.4. The conversion rate of (R,S)-1-(4-chlorophenyl)ethylamine was 52%, with an enantiomeric excess of 99% towards the unreacted substrate in a reaction time of 22 h. Finally, using optically pure (S)-1-(4-chlorophenyl)ethylamine as the raw material, the chem. synthesis of (S)-N-(1-(4-chlorphenyl)ethyl)-2-(5,7-dimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-2-ylthio)acetamide, a novel triazolopyrimidine herbicide, was achieved, and the total yield and purity were 83.5% and 95.3%, resp.

There is still a lot of research devoted to this compound(SMILES：O=C(C1OCCC1)OC)Application In Synthesis of Methyl tetrahydrofuran-2-carboxylate, and with the development of science, more effects of this compound(37443-42-8) can be discovered.

Reference:
Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

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, Journal of the American Chemical Society called Structural effects on rates and equilibriums. XVI. Effect of adjacent unshared electron pairs on ease of carbanion formation, Author is Hine, Jack; Dalsin, Philip D., which mentions a compound: 37443-42-8, SMILESS is O=C(C1OCCC1)OC, Molecular C6H10O3, Application of 37443-42-8.

The kinetics of NaOMe catalyzed D exchange of Me cyclopentanecarboxylate, two of its oxa derivatives and their acyclic analogs were studied in MeOD solution At 35° methyl cyclopentanecarboxylate exchanged 13 times as fast as Me α-ethylbutyrate, Me tetrahydro-2-furancarboxylate exchanged four times as fast as Me α-methoxybutyrate, and Me 1,3-dioxolane-2-carboxylate exchanged half as fast as Me dimethoxyacetate. From these results it was concluded that rates of carbanion formation may be decreased by repulsions between the unshared electron pairs of the carbanionic C atom and those of O atoms attached directly to it. Such repulsions may be minimized by appropriate rotation around the C-O bond in acyclic compounds but not as easily in cyclic compounds This electron repulsion effect operates in addition to the electronegativity effect, by which rates of formation of sp2-hybridized carbanions are slowed by highly electroneg. atoms attached directly to the site of carbanion formation. This interpretation of the results is analogous to that required to explain to explain recent observations on rates of pyramidal inversions at N and P.

If you want to learn more about this compound(Methyl tetrahydrofuran-2-carboxylate)Application of 37443-42-8, you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(37443-42-8).

Reference:
Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics