Category: 530-66-5

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Quinolinium thiocyanate》. Authors are Hurd, Charles D.; Wehrmeister, H. L..The article about the compound:quinoliniumhydrogensulphatecas:530-66-5,SMILESS:[O-]S(=O)(O)=O.C12=CC=C[NH+]=C1C=CC=C2).Computed Properties of C9H9NO4S. Through the article, more information about this compound (cas:530-66-5) is conveyed.

The reaction of BzCl with quinoline (I) and CHNa(CO2Et)2 did not yield the desired 1,2-dihydroquinoline, since most of the I was recovered; the products (as determined by hydrolysis) are CHBz(CO2Et)2 and Bz(BzO)C:C(CO2Et)2. I (63 g.) and 156 g. KSCN in 600 ml. H2O, treated (7 min.) with 148 g. BzCl and stirred 1 hr., give 77% quinolinium thiocyanate, light yellow, m. 141-1.5°; FeCl3 gives a deep red color; heated 1 hr. on the steam bath with concentrated HCl it yields quinolinium H sulfate, m. 162-4°.

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Reference:
Thiazolidine – Wikipedia,
Thiazolidine – ScienceDirect.com

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Solubility of the quinoline and isoquinoline acid sulfates in ethyl alcohol》. Authors are Potashnikov, M. M.; Gorelov, P. N..The article about the compound:quinoliniumhydrogensulphatecas:530-66-5,SMILESS:[O-]S(=O)(O)=O.C12=CC=C[NH+]=C1C=CC=C2).Category: thiazolidine. Through the article, more information about this compound (cas:530-66-5) is conveyed.

The solubility of the acid sulfates of quinoline (I) and isoquinoline (II) in 75-95% EtOH was determined for the temperature range 0-50°. The exptl. data show that crystalline hydrates are formed in ∼85% EtOH (C9H7N.H2SO4.4H2O at 0-15°; 2C9H7N.H2SO4.7H2O at 15-20°). I is 2-3 times as soluble in EtOH as is II and this fact can be used to sep. the 2 compounds

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Thiazolidine – Wikipedia,
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HPLC of Formula: 530-66-5. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: quinoliniumhydrogensulphate, is researched, Molecular C9H9NO4S, CAS is 530-66-5, about Quenching of the luminescence in complexes with hydrogen bonding Model systems of aromatic hydrocarbons-nitrogenous heterocycle salts. Author is Krasheninnikov, A. A..

Luminescence quenching constants for systems containing acid salts of heterocyclic bases (pyridine, quinoline, acridine) and aromatic hydrocarbons (phenanthrene, anthracene, naphthacene) indicated that charge-transfer complex formation occurred and that quenching resulted from electron transfer from the aromatic hydrocarbon to the heterocyclic cation.

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Reference:
Thiazolidine – Wikipedia,
Thiazolidine – ScienceDirect.com

Synthetic Route of C9H9NO4S. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: quinoliniumhydrogensulphate, is researched, Molecular C9H9NO4S, CAS is 530-66-5, about Metal-free photocatalytic aerobic hydroxylation of benzene catalyzed by the commercially available quinoline sulfate. Author is Long, Zhouyang; Sun, Liming; Zhang, Mingjue; Zhang, Yadong; Zong, Chenghua; Xue, Zhiliang; Wang, Tianyu; Chen, Guojian.

Metal-free photocatalytic aerobic hydroxylation of benzene to phenol is achieved by using the low-cost com. available quinoline sulfate (QuH2SO4) as the photocatalyst. The reaction conditions are optimized and a high phenol yield of 11.3% is obtained under the optimal reaction conditions. It is found that the [QuH]+ cation is the catalytic active species and its planar structure is crucial for its effect interaction with benzene. Moreover, the influence of the coupled anion on the photocatalytic activity of the [QuH]+ cation is investigated and discussed.

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Reference:
Thiazolidine – Wikipedia,
Thiazolidine – ScienceDirect.com

Popov, V. A.; Baboshin, Yu. V.; Belavina, I. G.; Cherkasov, N. Kh. published an article about the compound: quinoliniumhydrogensulphate( cas:530-66-5,SMILESS:[O-]S(=O)(O)=O.C12=CC=C[NH+]=C1C=CC=C2 ).Safety of quinoliniumhydrogensulphate. 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:530-66-5) through the article.

The extraction of heterocyclic nitrogenous bases from absorption oil fractions containing ∼9% bases, 10% naphthalene, and up to 10% phenols with 30% H2SO4 [7664-93-9] or 30% H3PO4 [7664-38-2] is described. H2SO4 has a higher extraction efficiency than H3PO4, but H3PO4 is less corrosive and has less tendency to gum formation. The removal of phenols during H2SO4 treatment is not so complete and this may double the amount of unextracted bases. The presence of phenols also increases the acid consumption. The solubility of the acid sulfate and monophosphate in the absorption oil fraction is ∼0.15% by volume at 20°. This value agrees with the residual after treatment with 80% excess H2SO4. Treatment with H3PO4 under similar conditions leads to a 10-fold increase in the residual unextracted bases.

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Reference:
Thiazolidine – Wikipedia,
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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 Separation of quinaldine from a ternary mixture with quinoline and isoquinoline, published in 1968, which mentions a compound: 530-66-5, Name is quinoliniumhydrogensulphate, Molecular C9H9NO4S, Application In Synthesis of quinoliniumhydrogensulphate.

The solubility relations of the monophosphate and bisulfate salts of quinaldine (I), quinoline (II), and isoquinoline (III) were studied. The solubility of the monophosphate of III in H2O at 25° is 6.7 times that of I or II. The solubility of the bisulfates of I and II was studied at 0-50° and 75-95% EtOH. At 10° and 85% EtOH, the solubility ratio of II to I is 3.8. I, 96% pure, was obtained from a mixture of I, II, and III by the following method. To 500 g. of a 1:1 mixture I (32%), II (20%), and III (40%) in MeOH was added 1 equivalent of H3PO4 (at <25°). To the precipitated salt was added just enough H2O to dissolve all of the phosphate of III. The remaining salt was decomposed in 20% NaOH yielding a 1:1 mixture of I and II. This was dissolved in 85% EtOH (1:1 ratio) and 1 equivalent of H2SO4 was added. The precipitated salt was recrystallized from 85% EtOH at 10°, decomposed with 10% base, extracted with benzene, and distilled to yield 58.8% I. As far as I know, this compound(530-66-5)Application In Synthesis of quinoliniumhydrogensulphate can be applied in many ways, which is helpful for the development of experiments. Therefore many people are doing relevant researches.

Reference:
Thiazolidine – Wikipedia,
Thiazolidine – ScienceDirect.com

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: quinoliniumhydrogensulphate, is researched, Molecular C9H9NO4S, CAS is 530-66-5, about The structural systematics of protonation of some important nitrogen-base ligands. III. Some (univalent) anion salts of some hindered unidentate nitrogen bases, the main research direction is crystal structure nitrogen base hindered unidentate salt; mol structure nitrogen base hindered unidentate salt.SDS of cas: 530-66-5.

Recent structural studies of salts of the 2,2,6,6-tetramethylpiperidinium cation [tmpH]+ (chloride, bromide; thiocyanate) present as interesting dimeric or polymeric associations linked by pairs of directional H-bonds from the cationic = NH+2 moieties to ‘two-coordinate’ anions. Present single crystal x-ray studies have characterized the iodide, perchlorate, nitrate and trifluoroacetate complexes, all, like those of the preceding studies, [tmpH]+X- (anhydrous). A variety of forms are found: the nitrate compound is dimeric [[tmpH](O·NO·O)2[Htmp]], the trifluoroacetate compound being similar in form while the iodide and perchlorate salts are mixtures of dimers (with the anions essentially single atom bridges) and single-stranded helical polymers, the stoichiometric ratio of these being 1:1 and 2:1 in terms of [tmpH]X formula units, resp. A study of 4-keto-2,2,6,6-tetramethylpiperidinium thiocyanate shows it to be a dimer [[OtmpH](SCNNSC)[HtmpO]], unlike its previously studied chloride analog which is a cyclic tetramer. A new P21/n phase of diisopropylammonium chloride, derivative of the previously described P212121 and P21 forms, is reported, together with descriptions of protonated salts of the other hindered unidentate bases 2,6-lutidine (as the chloride salt), quinoline (as the perchlorate, trifluoroacetate, hexachlorostannate and bisulfate salts) and 2-quinaldine (as the chloride (anhydrous and monohydrate) and hexachlorostannate salts), all displaying arrays derivative of ion-pair formation (extended by anion-anion H-bonds as well in the bisulfate salt) and, in the case of the aromatic bases, dominated by parallel stacking.

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Reference:
Thiazolidine – Wikipedia,
Thiazolidine – ScienceDirect.com

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Solubility of the quinoline and isoquinoline acid sulfates in ethyl alcohol》. Authors are Potashnikov, M. M.; Gorelov, P. N..The article about the compound:quinoliniumhydrogensulphatecas:530-66-5,SMILESS:[O-]S(=O)(O)=O.C12=CC=C[NH+]=C1C=CC=C2).Quality Control of quinoliniumhydrogensulphate. Through the article, more information about this compound (cas:530-66-5) is conveyed.

The solubility of the acid sulfates of quinoline (I) and isoquinoline (II) in 75-95% EtOH was determined for the temperature range 0-50°. The exptl. data show that crystalline hydrates are formed in ∼85% EtOH (C9H7N.H2SO4.4H2O at 0-15°; 2C9H7N.H2SO4.7H2O at 15-20°). I is 2-3 times as soluble in EtOH as is II and this fact can be used to sep. the 2 compounds

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Reference:
Thiazolidine – Wikipedia,
Thiazolidine – ScienceDirect.com

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: 530-66-5, is researched, Molecular C9H9NO4S, about Synthesis, characterization and photochromic properties of novel spirooxazines, the main research direction is spiro indoline naphthoxazine preparation photochromism merocyanine.Quality Control of quinoliniumhydrogensulphate.

A series of spirooxazine compounds were synthesized via condensation reaction of 1,3,3-trimethyl-2-methyleneindoline with 1-nitroso-2,7-naphthalenediols, followed by esterification with acyl chlorides. Absorption bands in the visible region were observed in UV spectra (λmax: 530-665 nm), which were red-shifted as the polarity of solvent increased. Furthermore, these absorption bands also red-shifted with the increase of the electron-donating ability of the 6′-heterocycle substituent, but were nearly unaffected by 9′-acyloxy. Thermal decoloration showed that the thermal relaxation progress of the photomerocyanine followed 1st order kinetics and the relaxation time was tuned in a broad range from 125-1886 s (at 20°) by changing electron-donating power on 6′-heterocycle and 9′-acyloxy.

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Reference:
Thiazolidine – Wikipedia,
Thiazolidine – ScienceDirect.com

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: 530-66-5, is researched, SMILESS is [O-]S(=O)(O)=O.C12=CC=C[NH+]=C1C=CC=C2, Molecular C9H9NO4SJournal, Catalysis Communications called Metal-free photocatalytic aerobic hydroxylation of benzene catalyzed by the commercially available quinoline sulfate, Author is Long, Zhouyang; Sun, Liming; Zhang, Mingjue; Zhang, Yadong; Zong, Chenghua; Xue, Zhiliang; Wang, Tianyu; Chen, Guojian, the main research direction is photocatalytic aerobic hydroxylation benzene quinoline sulfate.Synthetic Route of C9H9NO4S.

Metal-free photocatalytic aerobic hydroxylation of benzene to phenol is achieved by using the low-cost com. available quinoline sulfate (QuH2SO4) as the photocatalyst. The reaction conditions are optimized and a high phenol yield of 11.3% is obtained under the optimal reaction conditions. It is found that the [QuH]+ cation is the catalytic active species and its planar structure is crucial for its effect interaction with benzene. Moreover, the influence of the coupled anion on the photocatalytic activity of the [QuH]+ cation is investigated and discussed.

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Reference:
Thiazolidine – Wikipedia,
Thiazolidine – ScienceDirect.com