2826-24-6Relevant articles and documents
Controlling ZIF-8 nano- and microcrystal formation and reactivity through zinc salt variations
Schejn, Aleksandra,Balan, Lavinia,Falk, Veronique,Aranda, Lionel,Medjahdi, Ghouti,Schneider, Raphael
, p. 4493 - 4500 (2014)
We report here a simple method for controlling the crystal size and morphology of zeolitic imidazolate framework-8 (ZIF-8) nanocrystals in methanol solution. ZIF-8 crystals were prepared by mixing 2-methylimidazole (Hmim) with various zinc salts for 1 h a
Structure-induced Lewis-base Ga4B2O9 and its superior performance in Knoevenagel condensation reaction
Cong, Rihong,Gao, Wenliang,Jiang, Pengfei,Wang, Duo,Yang, Tao,Yang, Yao
, (2020)
Solid Lewis-base catalysis is important in the production of fine chemicals. A Lewis-base Ga4B2O9 was synthesized by high temperature solid state reactions. It exhibited a high yield (90 %) and a high stability in Knoevena
Nanochannel {InZn}-Organic Framework with a High Catalytic Performance on CO2Chemical Fixation and Deacetalization-Knoevenagel Condensation
Chen, Hongtai,Zhang, Zhengguo,Hu, Tuoping,Zhang, Xiutang
, p. 16429 - 16438 (2021/11/01)
The rare combination of InIII 5p and ZnII 3d in the presence of a structure-oriented TDP6- ligand led to a robust hybrid material of {(Me2NH2)[InZn(TDP)(OH2)]·4DMF·4H2O}n (NUC-42) with the interlaced hierarchical nanochannels (hexagonal and cylindrical) shaped by six rows of undocumented [InZn(CO2)6(OH2)] clusters, which represented the first 5p-3d nanochannel-based heterometallic metal-organic framework. With respect to the multifarious symbiotic Lewis acid-base and Br?nsted acid sites in the high porous framework, the catalytic performance of activated NUC-42a upon CO2 cycloaddition with styrene oxide was evaluated under solvent-free conditions with 1 atm of CO2 pressure, which exhibited that the reaction could be well completed at ambient temperature within 48 h or at 60 °C within 4 h with high yield and selectivity. Moreover, because of the acidic function of metal sites and a central free pyridine in the TDP6- ligand, deacetalization-Knoevenagel condensation of acetals and malononitrile could be efficiently facilitated by an activated sample of NUC-42a under lukewarm conditions.
Effect of supramolecular polymeric aggregation in room temperature ionic liquids (RTILs) on catalytic activity in the synthesis of 4H-chromene derivatives and Knoevenagel condensation
Muhammad, Shoaib,Ali, Firdous Imran,Javed, Muhammad Naveed,Wasim, Agha Arsalan,Bari, Ahmed,Rafique, Faisal,Ilyas, Muhammad Amjad,Riaz, Kashif,Mahmood, Syed Junaid,Ahmed, Amir,Hashmi, Imran Ali
, (2020/10/30)
RTILs exhibit supramolecular self-assembled polymeric aggregation due to noncovalent interactions. The influence of the aggregation behaviour of RTILs on catalytic activity is evident but still poorly understood. The present work focuses on establishing a
Introduction of succinimide as a green and sustainable organo-catalyst for the synthesis of arylidene malononitrile and tetrahydrobenzo[b] pyran derivatives
Hassanzadeh, Fariba,Shirini, Farhad,Mamaghani, Manouchehr,Daneshvar, Nader
, p. 155 - 163 (2021/03/23)
Aim and Objective: In this work, we tried to introduce a non-toxic and stable organic compound named succinimide as a green and efficient organo-catalyst for the promotion of the synthesis of arylidene malononitrile and tetrahydrobenzo[b]pyran derivatives