Category: 265664-63-9

Computed Properties of C5H7BClNO2. 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: Pyridin-3-ylboronic acid hydrochloride, is researched, Molecular C5H7BClNO2, CAS is 265664-63-9, about Pyridinium boronic acid salts in crystal synthesis. Author is Kara, Hulya; Adams, Christopher J.; Orpen, A. Guy; Podesta, Thomas J..

Salts of pyridinioboronic acids, [HNC5H4B(OH)2-4]2[M(S2C2O2)2]·2H2O (M = Cu 1, Ni 2, Pd 3, Pt 4), [HNC5H4B(OH)2-4]2[Pt(O2C2O2)2] (5); [HNC5H4B(OH)2-3]2 [M(S2C2O2)2] (M = Cu 6, Ni 7, Pd 8, Pt 9) and [HNC5H4B(OH)2-3]2[Pt(O2C2O2)2] (10) were prepared and characterized by x-ray diffraction methods. Salts 2, 3 and 4 are isostructural and isomorphous and contain H-bonded supermols. [pyridinium]2[M(S2C2O2)2] linked by BOH···OB and B(OH)-H2O H bonds into a three-dimensional network. Anhydrous salt 5 has a different structure in which the ions are linked by R(2,2)8 B(OH)2···carboxylate and pyridinium···carboxylate interactions to form a planar H-bonded ribbon. Salts 6, 7, 8 and 10 are all isostructural and isomorphous and contain H-bonded supermols. [pyridinium]2[M(S2C2O2)2] linked by B(OH)2···carboxylate synthons to form a stepped chain. These chains pack in layers superimposed so as to afford short metal···metal contacts of length 3.6-4 Å between layers. The structure of 5 is isomorphous with that of salts 6-8 and 10 but with a different pattern of NH H bonding as a result of the different isomer of pyridinioboronic acid present.

《Pyridinium boronic acid salts in crystal synthesis》 provides a strategy for the preparation of materials with excellent comprehensive properties, which is conducive to broaden the application field of this compound(Pyridin-3-ylboronic acid hydrochloride)Computed Properties of C5H7BClNO2.

Reference:
Oxazolidine – Wikipedia,
Oxazolidine | C3H7NO – PubChem

Recommanded Product: Pyridin-3-ylboronic acid hydrochloride. 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: Pyridin-3-ylboronic acid hydrochloride, is researched, Molecular C5H7BClNO2, CAS is 265664-63-9, about Relative kinetic reactivity of boronic acid and boronate ion towards Tiron, 2,2′-biphenol, and propylene glycol. Author is Watanabe, Eisuke; Miyamoto, Chiaki; Tanaka, Asumi; Iizuka, Kenzo; Iwatsuki, Satoshi; Inamo, Masahiko; Takagi, Hideo D.; Ishihara, Koji.

Reaction systems of boronic acid (RB(OH2), R = Ph or 3-fluorophenyl) with diols and no proton ambiguity were elaborately set up, and kinetic measurements were conducted to elucidate the relative reactivities of RB(OH)2 and RB(OH)3-. In the reactions of phenylboronic and 3-fluorophenylboronic acids with propylene glycol, the reactivity order was: RB(OH)2 >> RB(OH)3-, whereas in the reactions of 3-pyridylboronic acid with Tiron and 2,2′-biphenol, the reactivity of RB(OH)2 was comparable to that of RB(OH)3-. These results are in contrast to those that have been previously reported, and widely accepted for over thirty years, that concluded that the reactivity of RB(OH)3- is several orders of magnitude higher than that of RB(OH)2. The reactivity of Tiron with 3-pyridylboronic acid is affected by the protonation of one of its sulfonate groups.

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Reference:
Oxazolidine – Wikipedia,
Oxazolidine | C3H7NO – PubChem

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.Maki, Toshikatsu; Ishihara, Kazuaki; Yamamoto, Hisashi researched the compound: Pyridin-3-ylboronic acid hydrochloride( cas:265664-63-9 ).Synthetic Route of C5H7BClNO2.They published the article 《New boron(III)-catalyzed amide and ester condensation reactions》 about this compound( cas:265664-63-9 ) in Tetrahedron. Keywords: boron catalysis carboxylic acid esterification amidation green chem; polystyrene bound alkylated boronopyridinium salt preparation catalysis esterification amidation; Ritter addition catalysis benzodioxaborole; crystal structure cyclocondensed dodecamer quaternized boronopyridinium iodide; mol structure cyclocondensed dodecamer quaternized boronopyridinium iodide. We’ll tell you more about this compound (cas:265664-63-9).

In 1996, the authors reported that benzeneboronic acids bearing electron-withdrawing groups at the meta- or para-position are highly effective catalysts for the amide condensation reaction in less-polar solvents. The authors now report that N-alkyl-4-boronopyridinium halides are more effective catalysts than the previous ones in more polar solvents. N-Alkyl-4-boronopyridinium halides are effective not only for amide condensation between equimolar mixtures of carboxylic acids and amines but also for the esterification of α-hydroxycarboxylic acids in alc. solvents. Furthermore, perchlorocatecholborane is more effective than areneboronic acids for the amide condensation of sterically demanding carboxylic acids. Lewis acid-assisted Bronsted acid (LBA), which was prepared from a 1:2 M mixture of boric acid and tetrachlorocatechol, is effective for the Ritter reaction from alcs. and nitriles to amides. The crystal and mol. structures of a cyclocondensed dodecamer of 4-borono-1-methylpyridinium iodide were determined by x-ray crystallog.

There is still a lot of research devoted to this compound(SMILES：OB(C1=CC=CN=C1)O.[H]Cl)Synthetic Route of C5H7BClNO2, and with the development of science, more effects of this compound(265664-63-9) can be discovered.

Reference:
Oxazolidine – Wikipedia,
Oxazolidine | C3H7NO – PubChem