Category: 530-66-5

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 The structural systematics of protonation of some important nitrogen-base ligands. III. Some (univalent) anion salts of some hindered unidentate nitrogen bases, published in 2006, which mentions a compound: 530-66-5, Name is quinoliniumhydrogensulphate, Molecular C9H9NO4S, COA of Formula: C9H9NO4S.

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 《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).Quality Control of quinoliniumhydrogensulphate. 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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Thiazolidine – Wikipedia,
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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).Reference 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,
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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 Metal-free photocatalytic aerobic hydroxylation of benzene catalyzed by the commercially available quinoline sulfate, published in 2019-03-05, which mentions a compound: 530-66-5, mainly applied to photocatalytic aerobic hydroxylation benzene quinoline sulfate, Category: thiazolidine.

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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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 Metal-free photocatalytic aerobic hydroxylation of benzene catalyzed by the commercially available quinoline sulfate, the main research direction is photocatalytic aerobic hydroxylation benzene quinoline sulfate.SDS of cas: 530-66-5.

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

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 Quinolinium thiocyanate, published in 1950, which mentions a compound: 530-66-5, Name is quinoliniumhydrogensulphate, Molecular C9H9NO4S, SDS of cas: 530-66-5.

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

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.Belavina, I. G.; Potashnikov, M. M. researched the compound: quinoliniumhydrogensulphate( cas:530-66-5 ).Electric Literature of C9H9NO4S.They published the article 《Separation of quinaldine from a ternary mixture with quinoline and isoquinoline》 about this compound( cas:530-66-5 ) in Zhurnal Prikladnoi Khimii (Sankt-Peterburg, Russian Federation). Keywords: quinaldine separation; quinoline quinaldine separation; isoquinoline quinaldine separation. We’ll tell you more about this compound (cas:530-66-5).

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. From this literature《Separation of quinaldine from a ternary mixture with quinoline and isoquinoline》,we know some information about this compound(530-66-5)Electric Literature of C9H9NO4S, but this is not all information, there are many literatures related to this compound(530-66-5).

Reference:
Thiazolidine – Wikipedia,
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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.Zaworotko, Mike; Subramanian, S.; Macgillivray, L. R. researched the compound: quinoliniumhydrogensulphate( cas:530-66-5 ).Recommanded Product: quinoliniumhydrogensulphate.They published the article 《Strategies for crystal engineering of polar solids》 about this compound( cas:530-66-5 ) in Materials Research Society Symposium Proceedings. Keywords: crystal engineering polar solid; hydrogen sulfate organic polar solid; cubane cluster polar solid; structure bisulfate cluster compound crystal. We’ll tell you more about this compound (cas:530-66-5).

Crystal engineering was invoked to design structural analogs of 2 prototypic SHG active solids, p-nitroaniline (pNA) and K dihydrogen phosphate (KDP). PNA exists as linear polar strands because of head-to-tail H bonding between adjacent mols. whereas KDP is a self-assembled H bonded diamond-type network that becomes polar when the H bonds align. The authors detail preparation and crystallog. characterization of 2 classes of multicomponent solid, organic cation H sulfates and co-crystals of the cubane cluster [M(CO)3(μ3-OH)]4, which structurally mimic pNA and KDP, resp. Several of the multi-component solids are polar and they represent a generic approach to designing new polar materials since 1 component can be changed without altering the basic architecture within the crystal.

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Reference:
Thiazolidine – Wikipedia,
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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, Zhurnal Prikladnoi Khimii (Sankt-Peterburg, Russian Federation) called Separation of quinaldine from a ternary mixture with quinoline and isoquinoline, Author is Belavina, I. G.; Potashnikov, M. M., which mentions a compound: 530-66-5, SMILESS is [O-]S(=O)(O)=O.C12=CC=C[NH+]=C1C=CC=C2, Molecular C9H9NO4S, Reference 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. I hope my short article helps more people learn about this compound(quinoliniumhydrogensulphate)Reference of quinoliniumhydrogensulphate. Apart from the compound(530-66-5), you can read my other articles to know other related compounds.

Reference:
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The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: quinoliniumhydrogensulphate( cas:530-66-5 ) is researched.Safety of quinoliniumhydrogensulphate.Popov, V. A.; Baboshin, Yu. V.; Belavina, I. G.; Cherkasov, N. Kh. published the article 《Conditions for extracting bases from the absorption fraction of coal tar》 about this compound( cas:530-66-5 ) in Uchenye Zapiski, Sverdlovskii Gosudarstvennyi Pedagogicheskii Institut. Keywords: extraction coal tar base; absorption oil extraction coal tar base; sulfuric acid tar base extraction; phosphoric acid tar base extraction. Let’s learn more about this compound (cas:530-66-5).

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,
Thiazolidine – ScienceDirect.com