Synthesis of spirooxindole derivatives catalyzed by GN/SO3H nanocomposite as a heterogeneous solid acid

2018 ◽  
Vol 44 (11) ◽  
pp. 6979-6993 ◽  
Author(s):  
Ali Allahresani ◽  
Bahare Taheri ◽  
M. A. Nasseri
Keyword(s):  
Solid Acid ◽  
Heterogeneous Solid

Covalently anchored sulfamic acid on cellulose as heterogeneous solid acid catalyst for the synthesis of structurally symmetrical and unsymmetrical 1,4-dihydropyridine derivatives

2017 ◽  
Vol 41 (12) ◽  
pp. 5133-5141 ◽  
Author(s):  
Shrikrishna Karhale ◽  
Chandrakant Bhenki ◽  
Gajanan Rashinkar ◽  
Vasant Helavi
Keyword(s):  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Sulfamic Acid ◽  
Acid Catalyst ◽  
Covalent Grafting ◽  
Heterogeneous Solid ◽  
Dihydropyridine Derivatives

A novel heterogeneous solid acid catalyst has been prepared by covalent grafting of chlorosulphonic acid on amino-functionalized cellulose (Cell–Pr-NHSO3H).

Melamine trisulfonic acid (MTSA): an efficient and recyclable heterogeneous catalyst in green organic synthesis

RSC Advances ◽  
2015 ◽  
Vol 5 (110) ◽  
pp. 90819-90837 ◽  
Author(s):  
Rajesh H. Vekariya ◽  
Kinjal D. Patel ◽  
Hitesh D. Patel
Keyword(s):  
Heterogeneous Catalyst ◽  
Organic Synthesis ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Organic Transformations ◽  
Highly Efficient ◽  
Recyclable Heterogeneous Catalyst ◽  
Melamine Trisulfonic Acid ◽  
Heterogeneous Solid

Melamine trisulfonic acid (MTSA) as a highly efficient heterogeneous solid acid catalyst catalyzes various organic transformations.

TiO2-coated magnetite nanoparticle-supported sulfonic acid as a new, efficient, magnetically separable and reusable heterogeneous solid acid catalyst for multicomponent reactions

RSC Advances ◽  
2015 ◽  
Vol 5 (57) ◽  
pp. 45974-45982 ◽  
Author(s):  
Ali Amoozadeh ◽  
Sanaz Golian ◽  
Salman Rahmani
Keyword(s):  
Magnetite Nanoparticles ◽  
Sulfonic Acid ◽  
Multicomponent Reactions ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Magnetite Nanoparticle ◽  
Magnetically Separable ◽  
Heterogeneous Solid

TiO2-coated magnetite nanoparticles-supported sulfonic acid (nano-Fe3O4–TiO2–SO3H (n-FTSA)) is synthesized by the immobilization of –SO3H groups on the surface of nano-Fe3O4–TiO2.

Halloysite nanotubes based heterogeneous solid acid catalysts

2020 ◽  
Vol 44 (30) ◽  
pp. 12897-12908
Author(s):  
Aman Mahajan ◽  
Princy Gupta
Keyword(s):  
Acid Catalysis ◽  
Solid Acid ◽  
Catalytic Performance ◽  
Halloysite Nanotubes ◽  
Solid Acids ◽  
Review Article ◽  
Solid Acid Catalysts ◽  
Acid Catalysts ◽  
Heterogeneous Solid ◽  
Excellent Catalytic Performance

Taking into account the excellent catalytic performance of halloysite nanotubes, the main focus of this review article is to unveil the research on halloysite nanotubes for the preparation of solid acids and their applications in acid catalysis.

scholarly journals Topotactic transformation of homogeneous phosphotungastomolybdic acid materials to heterogeneous solid acid catalyst for carbohydrate conversion to alkyl methylfurfural and alkyl levulinate

RSC Advances ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 705-718 ◽  
Author(s):  
Dinesh Gupta ◽  
Chandrakant Mukesh ◽  
Kamal K. Pant
Keyword(s):  
Strong Interaction ◽  
Transition Metal Oxides ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Three Dimensional ◽  
Acid Catalyst ◽  
Materials By Design ◽  
Alkyl Levulinate ◽  
Topotactic Transformation ◽  
Heterogeneous Solid

The strong interaction of higher transition metal oxides with inorganic non-metals can be promising for generating highly acidic three-dimensional materials by design.

Efficient N-Boc protection of amines by a reusable heterogeneous solid acid nanocatalyst at room temperature

2015 ◽  
Vol 42 (2) ◽  
pp. 1451-1461 ◽  
Author(s):  
Hojat Veisi ◽  
Alireza Sedrpoushan ◽  
Habibollah Ghazizadeh ◽  
Saba Hemmati
Keyword(s):  
Room Temperature ◽  
Solid Acid ◽  
Heterogeneous Solid

ChemInform Abstract: Appraisal of Heterogeneous Solid Acid-Base Catalysts for Transesterification

ChemInform ◽  
2010 ◽  
Vol 42 (3) ◽  
pp. no-no
Author(s):  
R. Jothiramalingam ◽  
B. Viswanathan ◽  
M. K. Wang
Keyword(s):  
Solid Acid ◽  
Acid Base ◽  
Base Catalysts ◽  
Heterogeneous Solid
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