Russian Chemical Bulletin最新文献_第7页

Preparative scalable method for the synthesis of cyclic and acyclic acetals of chloropropiolaldehyde and their transformation into acetals of lithiumpropiolaldehyde 氯丙醛环缩醛和无环缩醛的合成及其转化为丙醛锂缩醛的制备扩展方法

IF 1.7 4区化学

Russian Chemical Bulletin Pub Date : 2024-12-06 DOI: 10.1007/s11172-024-4428-y

A. B. Koldobskii, O. S. Shilova, A. A. Druzina, O. I. Artyushin

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Synthesis of functionalized N-acylated amino acids containing 3- and 4-coordinated phosphorus moieties 含3-和4-配位磷的功能化n -酰化氨基酸的合成

IF 1.7 4区化学

Russian Chemical Bulletin Pub Date : 2024-12-06 DOI: 10.1007/s11172-024-4417-1

Yu. N. Bubnov, A. A. Prishchenko, M. V. Livantsov, O. P. Novikova, L. I. Livantsova, S. V. Baranin

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Synthesis of 11-vertex cobalt bis(diphenylphosphine) complexes based on medium-size non-icosahedral carborane 5,6-nido-C2B8H12. Molecular structure of complex [1,1-{κ2-1′,2′-Ph2P(CH2)2PPh2}-1-H-isonido-1,2,4-CoC2B8H10] 基于中等尺寸非二十面体碳硼烷5,6-nido- c2b8h12的11顶点钴双（二苯基膦）配合物的合成。配合物[1,1-{κ2-1 ',2 ' - ph2p (CH2)2PPh2}-1- h -异烟醚-1,2,4- coc2b8h10]的分子结构

IF 1.7 4区化学

Russian Chemical Bulletin Pub Date : 2024-12-06 DOI: 10.1007/s11172-024-4406-4

E. V. Balagurova, A. P. Tyurin, I. A. Godovikov, F. M. Dolgushin, I. T. Chizhevsky

{"title":"Synthesis of 11-vertex cobalt bis(diphenylphosphine) complexes based on medium-size non-icosahedral carborane 5,6-nido-C2B8H12. Molecular structure of complex [1,1-{κ2-1′,2′-Ph2P(CH2)2PPh2}-1-H-isonido-1,2,4-CoC2B8H10]","authors":"E. V. Balagurova, A. P. Tyurin, I. A. Godovikov, F. M. Dolgushin, I. T. Chizhevsky","doi":"10.1007/s11172-024-4406-4","DOIUrl":"10.1007/s11172-024-4406-4","url":null,"abstract":"<div>The reactions of suspensions of the freshly prepared complexes [Ph2P(CH2)nPPh2] CoCl2 (n = 2 (dppeCoCl2), n = 3 (dpppCoCl2), n = 4 (dppbCoCl2); dppe is bis(diphenylphosphino)ethane, dppp is 1,3-bis(diphenylphosphino)propane, dppb is 1,4-bis-(diphenylphosphino)butane) with the salts [Na][R2C2B8H9] (R = H, Ph), which were obtained in situ by the treatment of carboranes 5,6-nido-R2C2B8H10 (R = H (1a), Ph (1b)) with NaH in THF at room temperature, afforded 18-electron cobaltahydridocarboranes with isonido structures, [1,1-{κ2-Ph2P(CH2)nPPh2}-1-H-isonido-1,2,4-CoR2C2B8H8] (R = H, n = 2 (2a), 3 (2b), 4 (2c); R = Ph, n = 2 (2d)). The treatment of nido-carborane 1a with potassium hydroxide followed by the addition of [Ph2P(CH2)nPPh2]CoCl2 (n = 2–4) in ethanol at 20 °C resulted in the formation of ethoxy-substituted complexes [1,1-{κ2-Ph2P(CH2)nPPh2}-1-H-3-(EtO)-isonido-1,2,4-CoC2B8H9] (3a–c, n = 2–4) apart from compounds 2a–c. All the newly prepared compounds were characterized by a combination of elemental analysis, multinuclear NMR spectroscopy, and IR spectroscopy. The structure of complex 2a was studied by X-ray diffraction analysis.</div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"73 10","pages":"2890 - 2899"},"PeriodicalIF":1.7,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142778422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Allylboration of azole aldehydes: enantioselective synthesis of homoallylic azole alcohols and reconsideration of the mechanism of enantioselectivity 唑类醛的烯丙基硼化：纯烯丙基唑醇的对映选择性合成及对映选择性机理的重新探讨

IF 1.7 4区化学

Russian Chemical Bulletin Pub Date : 2024-12-06 DOI: 10.1007/s11172-024-4408-2

O. A. Mikhaylov, M. E. Gurskii, E. Sh. Saigitbatalova, L. Z. Latypova, D. P. Gerasimova, O. A. Lodochnikova, A. R. Kurbangalieva, I. D. Gridnev

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Theoretical studies of the structure and properties of cyclic hydrogen peroxide clusters: quantum chemical calculations 环状过氧化氢团簇结构和性质的理论研究：量子化学计算

IF 1.7 4区化学

Russian Chemical Bulletin Pub Date : 2024-12-06 DOI: 10.1007/s11172-024-4398-0

S. S. Kiselev, Yu. A. Borisov

{"title":"Theoretical studies of the structure and properties of cyclic hydrogen peroxide clusters: quantum chemical calculations","authors":"S. S. Kiselev, Yu. A. Borisov","doi":"10.1007/s11172-024-4398-0","DOIUrl":"10.1007/s11172-024-4398-0","url":null,"abstract":"<div>Density functional theory calculations of the structure and properties of bicyclic and tricyclic hydrogen peroxide (HP) clusters (Pn, n = 8–14) in the gas phase were carried out for the first time. Three main types of couplings of two or more ring clusters P4–P7 (tetra-, penta-, hexa-, and heptamer) into a cyclic structure were investigated. The first (type A) includes a reorientation of hydrogen bonds within the cluster and a change in the sign of the dihedral angle (chirality) of several HP molecules, while the second (type B) process entails the formation of bridges comprising two HP molecules, without altering the overall chirality of the cluster. The third type of coupling of two clusters involves the formation of nested structures in which the smaller cluster is located inside the larger one. The thermodynamic parameters of conjugation of clusters P4–P7 with the formation of cyclic structures were calculated. In the gas phase, the heterochiral type A structures have a lower energy than the homochiral type B structures with the same number of HP molecules. In the case of low-energy cyclic clusters, the highest number of hydrogen bonds (2n) is favourable.</div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"73 10","pages":"2821 - 2830"},"PeriodicalIF":1.7,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142778426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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The use of NiI2 as a catalyst for CO2 addition to oxiranes: activation methods 用NiI2作为催化剂对氧环烷进行CO2加成：活化方法

IF 1.7 4区化学

Russian Chemical Bulletin Pub Date : 2024-12-06 DOI: 10.1007/s11172-024-4426-0

S. E. Lyubimov, P. V. Cherkasova

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Synthesis of non-symmetrical triarylphosphine oxide with fluorophore groups 含荧光基团的非对称氧化三芳膦的合成

IF 1.7 4区化学

Russian Chemical Bulletin Pub Date : 2024-12-06 DOI: 10.1007/s11172-024-4418-0

O. V. Bykhovskaya, I. Yu. Kudryavtsev, T. V. Baulina, M. P. Pasechnik, V. K. Brel

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Synthesis and structure of copper(ii) and manganese(ii) diethylmalonates with 4,4′-bipyridine 含4,4′-联吡啶的二乙基丙二酸铜（ii）和锰（ii）的合成和结构

IF 1.7 4区化学

Russian Chemical Bulletin Pub Date : 2024-12-06 DOI: 10.1007/s11172-024-4400-x

A. S. Chistyakov, D. A. Knyazev, E. N. Zorina-Tikhonova, M. A. Kiskin, A. V. Vologzhanina, I. L. Eremenko

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Effect of crystallization conditions on the composition and structure of {ZnCa} metal-organic coordination polymers with isophthalate anions 结晶条件对间苯二甲酸阴离子{ZnCa}金属有机配位聚合物组成和结构的影响

IF 1.7 4区化学

Russian Chemical Bulletin Pub Date : 2024-12-06 DOI: 10.1007/s11172-024-4402-8

I. K. Rubtsova, M. A. Shmelev, S. A. Nikolaevskii, D. A. Banaru, I. A. Yakushev, P. V. Dorovatovskii, S. M. Aksenov, A. A. Sidorov, I. L. Eremenko, M. A. Kiskin

{"title":"Effect of crystallization conditions on the composition and structure of {ZnCa} metal-organic coordination polymers with isophthalate anions","authors":"I. K. Rubtsova, M. A. Shmelev, S. A. Nikolaevskii, D. A. Banaru, I. A. Yakushev, P. V. Dorovatovskii, S. M. Aksenov, A. A. Sidorov, I. L. Eremenko, M. A. Kiskin","doi":"10.1007/s11172-024-4402-8","DOIUrl":"10.1007/s11172-024-4402-8","url":null,"abstract":"<div>The reaction of the heterometallic complex [Zn2Ca(piv)6(py)2] (piv is pivalate anion, py is pyridine) with isophthalic acid (1,3-H2bdc) under the solvothermal conditions afforded a series of new {ZnCa} coordination polymers [Zn2Ca(DMF)2(1,3-bdc)3]n • •n(DMF) (1), [Zn3Ca3(H2O)5(DMF)(1,3-bdc)6]n • 3n(C6H6) • 3n(DMF) (2), and [Zn4Ca3(H2O)4(NMP)(1,3-bdc)8]n (3, NMP is N-methylpyrrolidone). The structures of the new compounds were determined by single-crystal X-ray diffraction. Depending on the conditions of the synthesis and crystallization, porous coordination polymers with different structures and composition were obtained. The use of poorly soluble zinc iso-phthalate as one of the starting compounds in the reaction with calcium nitrate enabled the preparation of single-phase complex 1 in amounts required for further investigations. The synthesized compounds were characterized by single-crystal X-ray diffraction, powder X-ray diffraction, IR spectroscopy, and elemental analysis.</div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"73 10","pages":"2852 - 2865"},"PeriodicalIF":1.7,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142778430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Novel thermosetting diimides containing terminal propargyl groups 含有末端丙炔基团的新型热固性二亚胺

IF 1.7 4区化学

Russian Chemical Bulletin Pub Date : 2024-10-26 DOI: 10.1007/s11172-024-4388-2

V. S. Bochenkov, R. N. Shamsutdinova, A. I. Ryzhkov, V. L. Baklagin, A. Yu. Tsegelskaya, I. G. Abramov, A. I. Buzin, A. A. Kuznetsov

{"title":"Novel thermosetting diimides containing terminal propargyl groups","authors":"V. S. Bochenkov, R. N. Shamsutdinova, A. I. Ryzhkov, V. L. Baklagin, A. Yu. Tsegelskaya, I. G. Abramov, A. I. Buzin, A. A. Kuznetsov","doi":"10.1007/s11172-024-4388-2","DOIUrl":"10.1007/s11172-024-4388-2","url":null,"abstract":"<div>A series of new thermosetting diimides containing terminal propargyl groups was synthesized via one-step high-temperature catalytic condensation of dianhydrides of a tetracarboxylic acid with N-Boc-(4-propargyloxy)aniline (APR) in the so-called “active medium”, viz. molten benzoic acid. Structures of the obtained compounds were confirmed by 1H NMR and IR spectroscopy. The effect of symmetrical and unsymmetrical structures of the middle bis-imide moiety obtained from dianhydrides of isomeric diphenyltetracarboxylic acid on physicochemical characteristics of the diimides was evaluated. A similar comparison of properties was also carried out for a pair of new propargyl-containing diimides synthesized from dianhydrides of symmetric and asymmetric structure: 4,4-biphenylenedioxydiphthalic and 3,4-biphenylenedioxydiphthalic dianhydrides, respectively. Thermal properties of thermosetting oligoimides were estimated using DSC and TMA methods. It was found that their thermal properties and solubility in organic solvents depend significantly on the structure of central bis-imide moiety.</div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"73 9","pages":"2750 - 2757"},"PeriodicalIF":1.7,"publicationDate":"2024-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142518760","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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