Heterocyclic Building Blocks-Benzisoxazole

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Kolbe electrolyses of cis- and trans-methyl hydrogen hexahydrophthalate》. Authors are Overberger, C. G.; Kabasakalian, Peter.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).Application In Synthesis of cis-Cyclohexane-1,2-dicarboxylic acid. Through the article, more information about this compound (cas:610-09-3) is conveyed.

The Kolbe electrolysis of cis- and trans-Me H hexahydrophthalate (I) in anhydrous MeOH has been carried out. Identical mixtures of uncoupled products were obtained from both isomers. Me 1-cyclohexene- and 2-cyclohexene-1-carboxylate and Me cyclohexanecarboxylate were obtained as monomeric products. Dimeric materials were obtained for the first time from I. Saponification of the dimeric ester mixture gave 2 perhydrodiphenic acids, trans-anti-trans and trans-syn-trans, which were separated and identified quantitatively by adsorption chromatography and infrared analysis. Since epimerization occurred on all centers α to the carboxyl group, no conclusion about the stereochemistry of the radicals could be deduced from the ratios of coupled products.

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Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

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: Methyl tetrahydrofuran-2-carboxylate, is researched, Molecular C6H10O3, CAS is 37443-42-8, about Hydrogenation and esterification of α-furancarboxylic acid over Ru-Pd/γ-Al2O3 catalyst.SDS of cas: 37443-42-8.

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.

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Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

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: cis-Cyclohexane-1,2-dicarboxylic acid, is researched, Molecular C8H12O4, CAS is 610-09-3, about Structure of some cyclohexyl compounds as related to their ability to stimulate plant growth.Quality Control of cis-Cyclohexane-1,2-dicarboxylic acid.

Of 9 cyclohexyl compounds tested as plant growth regulators on bush bean plants (Phaseolus vulgaris), only cyclohexanecarboxylic (I) [98-89-5] and cyclohexylacetic acid (II) [5292-21-7] significantly increased pod production Among I, II, cyclohexylpropionic [701-97-3], and cyclohexylbutyric acid [4441-63-8], the stimulating effect decreased as the number of CH2 groups in the side chain increased, from 0-3. The effective compounds possessed an H-saturated C6-ring with a single carboxyl group attached directly to the ring or separated by 1 ≤ CH2 group.

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Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

Formula: C8H12O4. 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 [Ni(cyclam)]2+ and [Ni(R,S-Me6cyclam)]2+ as Linkers or Counterions In Uranyl-Organic Species with cis- and trans-1,2-Cyclohexanedicarboxylate Ligands. Author is Thuery, Pierre; Harrowfield, Jack.

The macrocyclic species [Ni(cyclam)]2+ and [Ni(R,S-Me6cyclam)]2+ were used as addnl. cations in the solvo-hydrothermal synthesis of five uranyl ion complexes with cis- or trans-1,2-cyclohexanedicarboxylic acids (c-1,2-chdcH2 and t-1,2-chdcH2). In the complex [UO2(c-chdc)2Ni(cyclam)(H2O)] (1), dimeric uranyl dicarboxylate subunits are assembled into a two-dimensional (2D) network through axial coordination of NiII to carboxylate groups. Although they involve different isomers, the complexes [(UO2)2(c-chdc)2(c-chdcH)2Ni(cyclam)] (2) and [(UO2)2(t-chdc)2(t-chdcH)2Ni(cyclam)] (3) are very similar, both containing uranyl-based one-dimensional (1D) subunits which are assembled into 2D networks by bridging [Ni(cyclam)]2+ groups. The orientation of the uncoordinated carboxylic group is different in 2 and 3, the layers in 2 being hydrogen bonded to each other through carboxylic acid dimer formation. Using the pure (1R,2R) enantiomer of t-1,2-chdcH2 gives the complex [Ni(cyclam)][(UO2)5(R-t-chdc)3(R-t-chdcH)(O)2(CH3COO)] (4), in which pentanuclear uranyl subunits are assembled into 1D chains by dicarboxylic/-ate ligands in the usual bis(equatorial) chair conformation, another ligand in the divergent bis(axial) conformation uniting these chains into a 2D assembly; the [Ni(cyclam)]2+ ions are simple counterions and are stacked in parallel fashion between the layers. [Ni(R,S-Me6cyclam)][Ni(R,S-Me6cyclam)(H2O)2][(UO2)2(t-chdc)2(O)]2 (5), in which the (1R,2R) enantiomer of t-chdcH2 used has undergone racemization, contains discrete bis(μ3-oxo)-centered tetranuclear uranyl complexes, organized into columns and layers by extensive hydrogen bonding to the counterions. The discoidal shape, available axial coordination sites, and hydrogen bond donor potential of these macrocyclic NiII complexes make them efficient assembling agents in uranyl-organic coordination polymers. As often observed in the presence of d-block metal cations, uranyl luminescence is either completely or partially quenched in complexes 1 and 3, resp.

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Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

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 Caramel products of glucose with water during heating process and their bioactivities, published in 2020, which mentions a compound: 3326-71-4, mainly applied to glucose water caramel product antioxidant antibacterial heating, Reference of 2-Furoic hydrazide.

In this study, the type I caramel reactions of the glucose-water system were carried out. The glucose caramel products (GCPs) at different reaction stages were collected and the reaction rate, UV absorption, flavor compound, and the antioxidant and antibacterial activities were determined The result showed that the glucose reaction rate of the GCP yielded at 180°C and 4 min arrived at the stable range of around 80.0%. For UV absorptions of GCPs at 305 nm increased approx. in the exponential order. Moreover, the GCP yielded at 180°C and 4 min was revealed to have the highest concentration of main flavor compounds and potent antioxidant and antibacterial activities.

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Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

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 Preparation and acetylcholinesterase inhibitory activities of pyridine-based 1,3,4-oxadiazole derivatives, published in 2020, which mentions a compound: 3326-71-4, mainly applied to pyridinyl oxadiazole preparation acetylcholinesterase inhibition SAR docking, Recommanded Product: 3326-71-4.

Fourteen pyridine-based 1,3,4-oxadiazole derivatives I [R = n-Bu, Ph, 3-pyridyl, etc.] were synthesized from pyridine-2-carboxaldehyde via iodine-mediated oxidative cyclization with substituted hydrazides by using the impregnation method. Their structures were confirmed by m.p., 1H NMR, 13C NMR and HRMS. Preliminary bioassay of these derivatives I, inhibition of acetylcholinesterase (AChE) was also evaluated in-vitro at the concentration of 1μmol/mL. The result showed that compounds I [R = 3-methoxyphenyl, 3-pyridyl, 4-pyridyl] had moderate inhibitory activities with 52%, 59% and 59%, resp. The preliminary structure-activity relationships revealed that the introduction of pyridine ring could enhance the activity. Mol. docking study demonstrated that compound I [R = 4-pyridyl] possessed an optimal docking pose with interactions at the middle of the catalytic active site (CAS) and peripheral anionic site (PAS) of AChE.

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Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

Related Products of 610-09-3. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: cis-Cyclohexane-1,2-dicarboxylic acid, is researched, Molecular C8H12O4, CAS is 610-09-3, about FT-IR and FT-Raman spectroscopy study of the cyclic anhydride intermediates for the esterification of cellulose. Part 3. Cyclic anhydrides formed by the isomers of cyclohexanedicarboxylic acid. Author is Yang, Charles Q.; Zhang, Guobao.

Multifunctional carboxylic acids were used as crosslinking agents for cotton and wood pulp cellulose. In the authors’ previous research, the authors found that a polycarboxylic acid esterifies cellulose through the formation of a 5-membered cyclic anhydride intermediate by the dehydration of 2 carboxyl groups. The authors studied the formation of those cyclic anhydride intermediates by different isomers of cyclohexanedicarboxylic acid (CHA) so that the authors can elucidate the effects of mol. structure on the formation of the anhydride intermediates. The authors found that both cis- and trans-1,2-CHA form 5-membered anhydride intermediates when temperature reaches their m.p. and that cis-1,2-CHA forms the cyclic anhydride at temperatures lower than does trans-1,2-CHA. 1,3-CHA forms 6-membered cyclic anhydride at temperatures much higher than its m.p. The formation of a 5-membered cyclic anhydride intermediates takes place at temperatures lower than that of a 6-membered anhydride. This is probably the main reason why those polycarboxylic acids with their carboxylic acid groups bonded to the adjacent carbons of the mol. backbones are more effective crosslinking agents for cellulose than those with their carboxylic groups bonded to the alternative carbons. No formation of cyclic anhydride was found for 1,4-CHA. The formation of a 5-membered cyclic anhydride was accelerated by monosodium phosphate, which is used as a catalyst for the esterification of cotton cellulose by polycarboxylic acids.

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Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

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 Design and synthesis of new pyranoquinolinone heteroannulated to triazolopyrimidine of potential apoptotic antiproliferative activity, published in 2020-12-31, which mentions a compound: 3326-71-4, mainly applied to pyranoquinolinone triazolopyrimidine apoptosis antiproliferative formimidic acid; Antiproliferative; Apoptosis; Caspase; Formimidic acid; Pyrano[3,2-c]quinoline; Triazolopyrimidine, Quality Control of 2-Furoic hydrazide.

Pyrano[3,2-c]quinoline derivatives have been synthesized and utilized to obtain various new hetero-annulated triazolopyrimidine, containing quinoline, pyran, 1,2,4-triazine and pyrimidine in good yields. Newly synthesized compounds have been characterized by spectral data and elemental anal. Most of the synthesized compounds showed moderate to weak antiproliferative activity on most cancer cell lines, especially leukemia and breast cancer cell lines. The open chain formimidic acid Et ester is slightly more potent than hetero-annulated systems. The most active compounds were further investigated for caspase activation, Bax activation and Bcl-2 down regulation compared to doxorubicin as a standard, and indeed exhibited mainly cell cycle arrest at the Pre-G1 and G2/M phases. The transcription effects of 5a and 5b on the p53 were assessed and compared with the reference doxorubicin. The results revealed an increase of 12-19 in p53 level compared to the test cells and that p53 protein level of 5a and 5b was significantly inductive (991, and 639 pg/mL, resp.) in relation to doxorubicin (1263 pg/mL).

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Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

Application of 610-09-3. 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: cis-Cyclohexane-1,2-dicarboxylic acid, is researched, Molecular C8H12O4, CAS is 610-09-3, about [Ni(cyclam)]2+ and [Ni(R,S-Me6cyclam)]2+ as Linkers or Counterions In Uranyl-Organic Species with cis- and trans-1,2-Cyclohexanedicarboxylate Ligands.

The macrocyclic species [Ni(cyclam)]2+ and [Ni(R,S-Me6cyclam)]2+ were used as addnl. cations in the solvo-hydrothermal synthesis of five uranyl ion complexes with cis- or trans-1,2-cyclohexanedicarboxylic acids (c-1,2-chdcH2 and t-1,2-chdcH2). In the complex [UO2(c-chdc)2Ni(cyclam)(H2O)] (1), dimeric uranyl dicarboxylate subunits are assembled into a two-dimensional (2D) network through axial coordination of NiII to carboxylate groups. Although they involve different isomers, the complexes [(UO2)2(c-chdc)2(c-chdcH)2Ni(cyclam)] (2) and [(UO2)2(t-chdc)2(t-chdcH)2Ni(cyclam)] (3) are very similar, both containing uranyl-based one-dimensional (1D) subunits which are assembled into 2D networks by bridging [Ni(cyclam)]2+ groups. The orientation of the uncoordinated carboxylic group is different in 2 and 3, the layers in 2 being hydrogen bonded to each other through carboxylic acid dimer formation. Using the pure (1R,2R) enantiomer of t-1,2-chdcH2 gives the complex [Ni(cyclam)][(UO2)5(R-t-chdc)3(R-t-chdcH)(O)2(CH3COO)] (4), in which pentanuclear uranyl subunits are assembled into 1D chains by dicarboxylic/-ate ligands in the usual bis(equatorial) chair conformation, another ligand in the divergent bis(axial) conformation uniting these chains into a 2D assembly; the [Ni(cyclam)]2+ ions are simple counterions and are stacked in parallel fashion between the layers. [Ni(R,S-Me6cyclam)][Ni(R,S-Me6cyclam)(H2O)2][(UO2)2(t-chdc)2(O)]2 (5), in which the (1R,2R) enantiomer of t-chdcH2 used has undergone racemization, contains discrete bis(μ3-oxo)-centered tetranuclear uranyl complexes, organized into columns and layers by extensive hydrogen bonding to the counterions. The discoidal shape, available axial coordination sites, and hydrogen bond donor potential of these macrocyclic NiII complexes make them efficient assembling agents in uranyl-organic coordination polymers. As often observed in the presence of d-block metal cations, uranyl luminescence is either completely or partially quenched in complexes 1 and 3, resp.

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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 Synthesis and Antibacterial Activity of Novel (4-Methoxyphenyl)-tetrahydropyranyl-substituted 1,3,4-Oxadiazoles, published in 2020-04-30, which mentions a compound: 3326-71-4, Name is 2-Furoic hydrazide, Molecular C5H6N2O2, Synthetic Route of C5H6N2O2.

Condensation of 4-(4-methoxyphenyl)tetrahydro-2H-pyran-4-carbonyl chloride I [R1 = Cl] with hydrazine hydrate, furan-2- and 2,5-dimethylfuran-2-carbohydrazides gave disubstituted hydrazides II [R2 = furan-2-carbonyl, (4,5-dimethylfuran-2-carbonyl), 4-(4-methoxyphenyl)tetrahydropyran-4-carbonyl], whose cyclization formed sym. and unsym. 2,5-disubstituted 1,3,4-oxadiazoles III [R3 = 2-furyl, 4,5-dimethyl-2-furyl, 4-(4-methoxyphenyl)tetrahydropyran-4-yl]. Et 4-[4-(4-methoxyphenyl)-tetrahydro-2H-pyran-4-carboxamido]benzoate IV [R4 = CO2Et] was reacted with hydrazine to obtain N-[4-(hydrazinocarbonyl)-phenyl]-4-(4-methoxphenyl)tetrahydro-2H-pyran-4-carboxamide IV [R4 = C(O)NHNH2]. Treatment of IV [R4 = C(O)NHNH2] latter with tri-Et orthoformate gave a monosubstituted 1,3,4-oxadiazole IV [R4 = 1,3,4-oxadiazol-2-yl], and with carbon disulfide, a 5-sulfanyl-1,3,4-oxadiazole derivative IV [R4 = (5-sulfanyl-1,3,4-oxadiazol-2-yl)] was obtained. The subsequent alkylation of this derivative IV [R4 = (5-sulfanyl-1,3,4-oxadiazol-2-yl)] with 5-metoxyfuran-2-Me and benzylaminocarbonylmethyl chlorides substituted chlorides resulted in the synthesis of the corresponding novel S-substituted oxadiazole derivatives V [R5 = 5-methoxycarbonyl-2-furyl, benzylcarbamoyl]. The synthesized compounds I, II, III, IV and V were tested for their antibacterial activity.

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Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics