Tag: M.W:100-200

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《The heats of hydration and energy contents of cis- and trans-cyclohexane-1,2-dicarboxylic acids, and their primary ions》. Authors are Wassermann, Albert.The article about the compound:cis-Cyclohexane-1,2-dicarboxylic acidcas:610-09-3,SMILESS:O=C([C@H]1[C@@H](C(O)=O)CCCC1)O).Formula: C8H12O4. Through the article, more information about this compound (cas:610-09-3) is conveyed.

The following values were obtained for the cis- and trans-cyclohexane-1,2-dicarboxylic acids and their ions, resp.: heat of combustion, kg.-cal./mole (constant temperature) 931.9, 929.5; heat of solution + first heat of ionization, -7.49, -6.48; energy content of primary anion in dilute solution, kg.-cal./mole 939.4, 936.0; mol. volume at 0° 126.5, 120.4; second heat of ionization +0.30, +0.24. The first ionization constant of the cis acid increases with rise in temperature, while that of the trans decreases. This leads to the conclusion that the trans ion is more hydrated than the cis ion, although the heat of hydration of the undissociated cis is not measurably greater than that of the trans acid.

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

Electric Literature of C5H6N2O2. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 2-Furoic hydrazide, is researched, Molecular C5H6N2O2, CAS is 3326-71-4, about Iodine-promoted one-pot synthesis of 1,3,4-oxadiazole scaffolds via sp3 C-H functionalization of azaarenes. Author is Mani, Geeta Sai; Donthiboina, Kavitha; Shankaraiah, Nagula; Kamal, Ahmed.

An efficient iodine-mediated one-pot synthetic protocol for the synthesis of 2,5-disubstituted 1,3,4-oxadiazoles scaffolds I [R = 2-furyl, Ph, 4-ClC6H4, etc.; R1 = 2-pyridyl, 2-quinolinyl, 7-Clquinolin-2-yl, etc.] was developed via sp3 C-H functionalization. This method involved oxidative amination with concomitant base-mediated cyclization of methylhetarenes and acylhydrazines by employing iodine and Cs2CO3. The key features of the present method included good functional group tolerance, a clean protocol, metal-free conditions and high yields, making this protocol an attractive strategy toward the synthesis of bioactive mols. and their key building blocks.

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

Chethan Prathap, K. N.; Shalini, P.; Lokanath, N. K. published the article 《Synthesis, characterization, crystal structure, Hirshfeld surface analysis and DFT calculations of two novel pyrrole derivatives》. Keywords: pyrrolylethylidene benzenesulfonohydrazide diastereoselective preparation crystal structure Hirshfeld surface analysis; furancarbohydrazide ethylidenepyrrole diastereoselective preparation crystal structure Hirshfeld surface analysis.They researched the compound: 2-Furoic hydrazide( cas:3326-71-4 ).Recommanded Product: 3326-71-4. 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:3326-71-4) here.

The novel pyrroles (E)-N’-(1-(1H-pyrrol-2-yl)ethylidene)benzenesulfonohydrazide and (E)-N’-(1-(1H-pyrrol-2-yl)ethylidene)furan-2-carbohydrazide were synthesized. The synthesized comps. were characterized by (1H and 13C) NMR, FT-IR, UV-visible, TG-DTA and XRD studies.

In addition to the literature in the link below, there is a lot of literature about this compound(2-Furoic hydrazide)Recommanded Product: 3326-71-4, illustrating the importance and wide applicability of this compound(3326-71-4).

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

Nikishin, G. I.; Glukhovtsev, V. G.; Peikova, M. A.; Maksimova, N. G. published an article about the compound: Methyl tetrahydrofuran-2-carboxylate( cas:37443-42-8,SMILESS:O=C(C1OCCC1)OC ).Category: benzisoxazole. 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.

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°.

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

HPLC of Formula: 610-09-3. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: cis-Cyclohexane-1,2-dicarboxylic acid, is researched, Molecular C8H12O4, CAS is 610-09-3, about Chemical structure and physicochemical properties of perospirone. Author is Mukumoto, Makiko; Furuta, Ritsuko; Takimoto, Yoshiyuki; Kojima, Atsuyuki.

Perospirone, a new antipsychotic, was studied to clarify its chem. structure and physicochem. properties. The chem. structure of perospirone was confirmed by elemental anal., and UV, IR, NMR and MS studies. The physico-hem. properties were clarified by studying solubilities, hygroscopicity, m.p., pH, thermal anal., pKa, partition coefficient, powder x-ray diffraction pattern and polymorphism. An HPLC method for the anal. of the degradation products formed under severe conditions was established.

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

Category: benzisoxazole. 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: cis-Cyclohexane-1,2-dicarboxylic acid, is researched, Molecular C8H12O4, CAS is 610-09-3, about Hydrolysis and interactions of D-cellobiose with polycarboxylic acids. Author is Amarasekara, Ananda S.; Wiredu, Bernard; Lawrence, Yen Maroney.

The hydrolysis of cellulose model compound D-cellobiose was studied with a series of eight common polycarboxylic acids and two monocarboxylic acids in aqueous medium using 0.500 mmol -COOH/L at 170 °C. The maleic acid showed the highest catalytic activity with turnover frequency (TOF) of 29.5 h-1. The interaction of carboxylic acids with D-cellobiose in DMSO-d6 was studied by determination of the pseudo first-order rate constant kH of anomeric -OH exchange rate in cellobiose using 1H NMR spectroscopy. The maleic, oxalic and citric acids showed infinitely large kH values indicating very strong interactions with D-cellobiose. The next highest interactions were found with phthalic acid (kH = 248.8 Hz). The FT-IR studies showed significant carboxylic acid C=O stretching frequency shifts (ΔνC=O) of 12, 13 and 10 cm-1 for maleic, oxalic and acetic acids resp. in mixtures with D-cellobiose.

There are many compounds similar to this compound(610-09-3)Category: benzisoxazole. if you want to know more, you can check out my other articles. I hope it will help you，maybe you’ll find some useful information.

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

Quality Control of Methyl tetrahydrofuran-2-carboxylate. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: Methyl tetrahydrofuran-2-carboxylate, is researched, Molecular C6H10O3, CAS is 37443-42-8, about Hydroformylation of furan compounds in the presence of cobalt catalysts. Author is Mistrik, E. J..

The hydroformylation of furans, e.g., 2-methylfuran, furfural, Me 2-furanacrylate and Me 2-furancarboxylate, in the presence of Co2(CO)8 and Co2(CO)7(PPh3)2 was studied. In addition to the products of hydroformylation, hydrogenation products were identified. The relative reactivity of the furans was estimated and a reaction mechanism proposed.

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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 《Synthesis, crystal structures, photoluminescence, and catalytic reactivity of novel coordination polymers (0-D, 1-D, 2-D to 3-D) constructed from cis-1,2-cyclohexanedicarboxylic acid and various bipyridyl ligands》. Authors are Lee, Yu Jin; Kim, Eun Young; Kim, Soo Hyun; Jang, Seung Pyo; Lee, Tae Geum; Kim, Cheal; Kim, Sung-Jin; Kim, Youngmee.The article about the compound:cis-Cyclohexane-1,2-dicarboxylic acidcas:610-09-3,SMILESS:O=C([C@H]1[C@@H](C(O)=O)CCCC1)O).Reference of cis-Cyclohexane-1,2-dicarboxylic acid. Through the article, more information about this compound (cas:610-09-3) is conveyed.

Six ZnII-(e,a-cis-1,2-chdc) complexes, [Zn2(1,2-chdc)2(2,2′-bpy)2(H2O)2]·H2O (1), [{Zn2(1,2-chdc)2(H2O)2(μ-bpa)}·4H2O]n (2), [{Zn2(μ-1,2-chdc)2(μ-4,4′-bpy)}·2CH3OH]n (3), [{Zn2(μ-1,2-chdc)2(μ-bpe)}·2H2O]n (4), [[{Zn2(μ-1,2-chdc)2}n-(μ-bpp)2-{Zn2(μ-1,2-hdc)2(H2O)2}]·CH3CN·2H2O]n (5), and [{Zn(μ-dtp)(μ-1,2-chdc)}2·4·5H2O]n (6) (1,2-chdc = 1,2-cyclohexanedicarboxylate), with different assistant ligands (2,2′-bipyridine (2,2′-bpy), 1,2-bis(4-pyridyl)ethane (bpa), 1,2-bis(4-pyridyl)ethylene (bpe), 1,3-bis(4-pyridyl)propane (bpp), and, 4,4′-bipyridine (4,4′-bpy) and 4,4′-dithiodipyridine (dtp)) were synthesized and their structures were determined Depending on the assistant ligands, the structures and dimensionalities of ZnII-(e,a-cis-1,2-chdc) complexes were varied. Two carboxylates in e,a-cis-1,2-chdc coordinate to ZnII ions with (11) or (10) connectivity. Photoluminescence study of the compounds 1-6 showed that emission spectra of compounds 1, 2, 4, and 5 were observed at 343 nm for 1, 419 nm for 2, 507 nm for 4, 396 nm for 5, resp., while no obvious luminescences were displayed for 3 and 6. Compound 1 catalyzed the transesterification reaction of Ph acetate with methanol, with quant. conversion to Me acetate, under the neutral conditions, while compounds 2-6 showed very slow conversions. The thermal stabilities of these complexes were also examined

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

Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 3326-71-4, is researched, Molecular C5H6N2O2, about Facile synthesis of 1,3,4-oxadiazoles via iodine promoted oxidative annulation of methyl-azaheteroarenes and hydrazides, the main research direction is oxadiazole preparation; methyl azaheteroarene hydrazide Kornblum oxidative cyclization.HPLC of Formula: 3326-71-4.

An oxidative sp3 C-H bond of methyl-azaheteroarenes protocol RCH3 (R = quinolin-2-yl, benzo[f]quinolin-3-yl, pyridin-2-yl, etc.) was reported for the synthesis of 1,3,4-oxadiazoles I (R1 = 2H-1,3-benzodioxol-5-yl, furan-2-yl, prop-1-en-2-yl, etc.) via [4+1] annulation with hydrazides R1C(O)NHNH2. This protocol enables 1,3,4-oxadiazole and quinoline linked diheterocycles I via selective oxidation of sp3 C-H bond of methyl-azaheteroarenes in the presence of I2-DMSO. The reaction has a broad substrate scope and good functional group tolerance for methyl-azaheteroarenes and hydrazides.

In addition to the literature in the link below, there is a lot of literature about this compound(2-Furoic hydrazide)HPLC of Formula: 3326-71-4, illustrating the importance and wide applicability of this compound(3326-71-4).

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

Formula: C5H6N2O2. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 2-Furoic hydrazide, is researched, Molecular C5H6N2O2, CAS is 3326-71-4, about Synthesis, antioxidant and antitumor activities of some of new cyclobutane containing triazoles derivatives. Author is Koparir, Pelin.

Thiosemicarbazides were obtained by the interaction of furan-2-carboxylic acid hydrazide with five different isothiocyanate (RNCS) derivatives By addition of KOH to the reaction medium, 1,2,4-triazoles derivatives I [R = Et, allyl, Ph, benzyl, 4-MeC6H4] were obtained. Compounds I were dissolved in dry acetone containing K2CO3 in the presence of 2-chloro-1-(3-methyl-3-mesitylcyclobutyl)ethanone to give 3,4,5-trisubstituted 1,2,4-triazole sulfanyl compounds II. The structures of the final compounds were confirmed by elemental analyses, FT-IR, 1H-NMR and 13C-NMR. The antioxidant and antitumor properties of the synthesized compounds were also investigated. Three of the triazole derivatives II [R = Ph, benzyl, 4-MeC6H4] displayed good antioxidant and antitumor activity in comparison to the standards

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