Highly Efficient Chromatographic Optical Resolution offac-Tris(β-alaninato)cobalt(III) with an Optically Activeob3Isomer of Tris(trans-1,2-diaminocyclohexane)cobalt(III) Cation Adsorbed on a Cation-Exchange Resin

1994 ◽  
Vol 23 (1) ◽  
pp. 101-104
Author(s):  
Tsutomu Mizuta ◽  
Atsushi Uchiyama ◽  
Kazumasa Ueda ◽  
Katsuhiko Miyoshi ◽  
Hayami Yoneda
Keyword(s):  
Cation Exchange ◽  
Exchange Resin ◽  
Cation Exchange Resin ◽  
Optical Resolution ◽  
Highly Efficient

Synthesis of 3,4-Dihydropyrano[c]chromenes Using Carbon Microsphere Supported Copper Nanoparticles (Cu-NP/C) Prepared from Loaded Cation Exchange Resin as a Catalyst

2019 ◽  
Vol 16 (2) ◽  
pp. 288-293
Author(s):  
Yogesh W. More ◽  
Sunil U. Tekale ◽  
Nitishkumar S. Kaminwar ◽  
László Kótai ◽  
Tibor Pasinszki ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Cation Exchange ◽  
Copper Nanoparticles ◽  
Exchange Resin ◽  
Cation Exchange Resin ◽  
Environmentally Benign ◽  
High Yield ◽  
Carbon Microsphere ◽  
Catalytic Material ◽  
Operational Simplicity

Aim and Objective: The present study was performed with the aim to develop an efficient and environmentally benign protocol for the synthesis of biologically siginifcant 3, 4-dihydropyrano[c]chromenes using a new catalytic material. The protocol involves the use of a reusable, environment friendly materials and solvents with operational simplicity. Materials and Methods: Carbon microsphere supported copper nanoparticles (Cu-NP/C) prepared from loaded cation exchange resin were synthesized, characterized with well versed analytical techniques such as XRD, SEM and Raman spectroscopy and the synthesized material was used as a catalyst for the environmentally benign synthesis of 3,4-dihydropyrano[c]chromenes. Results: The formation of carbon microsphere supported copper nanoparticles (Cu-NP/C) prepared from loaded cation exchange resin was confirmed by XRD, SEM and Raman spectroscopy which was employed as a heterogeneous material for the synthesis of 3,4-dihydropyrano[c]chromenes. The products formed were characterized by the analysis of spectroscopic data - NMR, IR and mass. The safe catalytic system offers several advantages including operational simplicity, environmental friendliness, high yield, and reusability of catalyst and green chemical transformation. Conclusion: Herein we report an easy and efficient protocol for the one-pot synthesis of dihydropyrano[ c]chromenes using environmentally benign MCR approach in ethanol as the green solvent. The method developed herein constitutes a valuable addition to the existing methods for the synthesis of titled compounds.

Novel and Economic Approach for Synthesis of Mesoporous Silica Template and Ordered Carbon Mesoporous By Using Cation Exchange Resin

2017 ◽  
Vol 13 (6) ◽  
Author(s):  
Leila Samiee ◽  
Saeedeh Tasharrofi ◽  
Sedigheh Sadegh Hassani ◽  
Milad Fardi ◽  
Babak Mazinani
Keyword(s):  
Mesoporous Silica ◽  
Cation Exchange ◽  
Exchange Resin ◽  
Cation Exchange Resin ◽  
Economic Approach ◽  
Silica Template

Synthesis of cation exchange resin-supported iron and magnesium oxides/hydroxides composite for nitrate removal in water

2020 ◽  
Author(s):  
Trung Thanh Nguyen ◽  
Vu Anh Khoa Tran ◽  
Le Ba Tran ◽  
Phuoc Toan Phan ◽  
Minh Tan Nguyen ◽  
...  
Keyword(s):  
Cation Exchange ◽  
Exchange Resin ◽  
Nitrate Removal ◽  
Cation Exchange Resin ◽  
Supported Iron
Sign in / Sign up

Export Citation Format

Share Document