77924-49-3Relevant articles and documents
Coordination polymers with free Bronsted acid sites for selective catalysis
Ma, Lu-Fang,Shi, Zhen-Zhen,Li, Fei-Fei,Zhang, Jian,Wang, Li-Ya
supporting information, p. 810 - 812 (2015/02/19)
By employing the 5-nitro-1,2,3-benzenetricarboxylate ligand, two Cu(ii) coordination polymers with free -COOH groups as Bronsted acid sites are synthesized, and both compounds show high activity and regioselectivity in catalyzing epoxide ring-opening reac
Solvent-free aminolysis of aliphatic and aryloxy epoxides with sulfated zirconia as solid acid catalyst
Shah, Arpan K.,Kumar, Manish,Abdi, Sayed H.R.,Kureshy, Rukhsana I.,Khan, Noor-Ul H.,Bajaj, Hari C.
, p. 105 - 114 (2015/09/28)
Single-step and two-steps synthetic procedure for the synthesis of sulfated zirconia (SZ) was developed, which were calcined at 500, 600 and 700 °C and characterized by various physico-chemical methods such as PXRD, FTIR, surface area, microanalysis, NH3-TPD and DRIFT analysis. These SZ materials were then employed as solid acid catalysts for the aminolysis of different aliphatic/aromatic terminal, aryloxy and meso epoxides with aromatic and aliphatic amines under ambient conditions. Amongst the catalyst prepared, SZ-2-600 prepared in two-steps and 600 ° C calcined was found to be the most efficient catalyst to give p-amino alcohols in up to 98% yield and 7gt;99% regioselectivity. The SZ catalyst was successfully recycled and reused up to six catalytic runs with intact efficiency.
N-Fluorobenzenaminium tetrafluoroborate generated in situ by aniline and Selectfluor as a reusable catalyst for the ring opening of epoxides with amines under microwave irradiation
Chauhan, Manmohan Singh,Yadav, Geeta Devi,Hussain, Firasat,Singh, Surendra
, p. 3945 - 3952 (2015/02/19)
The ring opening of epoxides with aromatic and aliphatic amines was carried out under solvent free conditions using N-fluorobenzenaminium tetrafluoroborate (2 mol%) generated in situ by the reaction of aniline and Selectfluor as a catalyst with microwave irradiation. Excellent yields of β-amino alcohols were obtained. The catalyst also results in the retention of the stereochemistry for the ring opening of enantiopure epoxide with amine. The catalyst was recovered and reused up to 4 cycles for the ring opening of cyclohexene oxide with aniline. This journal is
2D Naphthalenedisulfonate-cadmiun coordination polymer with 2,4,5-tri(4-pyridyl)-imidazole as a co-ligand: Structure and catalytic property
Wang, Xing-Wei,Guo, Hui,Liu, Meng-Jie,Wang, Xin-Yi,Deng, Dong-Sheng
, p. 243 - 246 (2014/02/14)
A new 2D coordination polymer, [Cd(tpim)(1,5-nds)]n (1), was constructed from 1,5-naphthalenedisulfonate (1,5-nds), 2,4,5-tri(4-pyridyl)- imidazole (tpim) and Cd(CH3COO)2·2H2O, which can be subsequently used to
Three-dimensional {Co3+-Zn2+} and {Co 3+-Cd2+} networks originated from carboxylate-rich building blocks: Syntheses, structures, and heterogeneous catalysis
Kumar, Girijesh,Gupta, Rajeev
, p. 10773 - 10787 (2013/10/22)
The present work shows the utilization of Co3+ complexes appended with either para- or meta-arylcarboxylic acid groups as the molecular building blocks for the construction of three-dimensional {Co 3+-Zn2+} and {Co3+-Cd2+} heterobimetallic networks. The structural characterizations of these networks show several interesting features including well-defined pores and channels. These networks function as heterogeneous and reusable catalysts for the regio- and stereoselective ring-opening reactions of various epoxides and size-selective cyanation reactions of assorted aldehydes.
Efficient solvent-free aminolysis of epoxides under (C4H 12N2)2[BiCl6]Cl·H 2O catalysis
Lu, Hong-Fei,Sun, Lei-Lei,Le, Wen-Jun,Yang, Fei-Fei,Zhou, Jun-Tao,Gao, Yu-Hua
experimental part, p. 4267 - 4272 (2012/09/22)
An efficient and rapid procedure for ring opening of various epoxides with aromatic, aliphatic and heterocyclic amines is developed at room temperature under solvent-free conditions in the presence of (C4H 12N2)2[BiCl6]Cl·H 2O (1 mol %). This catalyst can be reused several times without losing of its activity.
Enantioselective desymmetrization of meso-epoxides with anilines catalyzed by polymeric and monomeric Ti(IV) salen complexes
Kureshy, Rukhsana I.,Kumar, Manish,Agrawal, Santosh,Khan, Noor-Ul H.,Dangi, Balchand,Abdi, Sayed H. R.,Bajaj, Hari C.
experimental part, p. 76 - 83 (2011/10/08)
The active catalysts for the enantioselective ring opening (ARO) of meso-stilbene oxide, cis-butene oxide, cyclohexene oxide, cyclopentene oxide, and cyclooctene oxide with various substituted anilines were generated in situ by the reaction of Ti(Oi
Two-dimensional {Co3+-Zn2+} and {Co 3+-Cd2+} networks and their applications in heterogeneous and solvent-free ring opening reactions
Singh, Amit Pratap,Kumar, Girijesh,Gupta, Rajeev
scheme or table, p. 12454 - 12461 (2012/01/06)
We report the synthesis and structural characterization of two-dimensional {Co3+-Zn2+} and {Co3+-Cd2+} heterobimetallic networks and their catalytic applications in heterogeneous and solvent-free ring opening reactions of various epoxides. The Royal Society of Chemistry.
Hβ zeolite: An efficient and reusable catalyst for ring-opening of epoxides with amines under microwave irradiation
Kureshy, Rukhsana I.,Agrawal, Santosh,Kumar, Manish,Khan, Noor-Ul H.,Abdi, Sayed H. R.,Bajaj, Hari C.
experimental part, p. 318 - 323 (2011/01/03)
A solvent-free protocol for the synthesis of β-amino alcohols (Yield, up to 94%) is demonstrated by the ring-opening reactions of meso and terminal epoxides with aromatic amines using Hβ zeolite as catalyst under microwave irradiation. The catalytic syste
New cyclopentane derivatives as inhibitors of steroid metabolizing enzymes AKR1C1 and AKR1C3
Stefane, Bogdan,Brozic, Petra,Vehovc, Matej,Rizner, Tea Lanisnik,Gobec, Stanislav
body text, p. 2563 - 2571 (2009/10/17)
A series of cyclopentane derivatives was synthesized and evaluated for inhibition of the steroid metabolizing enzymes AKR1C1 and AKR1C3. Selective inhibitors that are active in the low micromolar range were identified. These compounds represent promising starting points in the development of new anticancer agents for the treatment of hormone-dependent forms of cancer and other diseases where AKR1C1 and AKR1C3 are involved.
