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.

scholarly journals Continuous-flow hydration–condensation reaction: Synthesis of α,β-unsaturated ketones from alkynes and aldehydes by using a heterogeneous solid acid catalyst

2011 ◽  
Vol 7 ◽  
pp. 1680-1687 ◽  
Author(s):  
Magnus Rueping ◽  
Teerawut Bootwicha ◽  
Hannah Baars ◽  
Erli Sugiono
Keyword(s):  
Heterogeneous Catalyst ◽  
Continuous Flow ◽  
Solid Acid ◽  
Condensation Reaction ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Reaction Synthesis ◽  
Unsaturated Ketones ◽  
Heterogeneous Solid ◽  
Convenient Access

A simple, practical and efficient continuous-flow hydration–condensation protocol was developed for the synthesis of α,β-unsaturated ketones starting from alkynes and aldehydes by employing a heterogeneous catalyst in a flow microwave. The procedure presents a straightforward and convenient access to valuable differently substituted chalcones and can be applied on multigram scale.

FeCl3–SiO2 as heterogeneous catalysts for the preparation of dihydropyrano[3,2-b]chromenediones

2011 ◽  
Vol 76 (12) ◽  
pp. 1791-1797 ◽  
Author(s):  
Wei-Lin Li ◽  
Jin-Ying Liang ◽  
Tian-Bao Wang ◽  
Ya-Qin Yang
Keyword(s):  
Heterogeneous Catalyst ◽  
Heterogeneous Catalysts ◽  
Solid Acid ◽  
Kojic Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Environment Friendly ◽  
Appreciable Change

FeCl3–SiO2 is environment-friendly heterogeneous catalyst for the condensation of kojic acid and aldehydes with dimedone to afford dihydropyrano[3,2-b]chromenediones. The solid acid catalyst is stable and can be easily recovered and reused without appreciable change in its efficiency.

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).

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.

scholarly journals A novel, mesoporous molybdenum doped titanium dioxide/reduced graphene oxide composite as a green, highly efficient solid acid catalyst for acetalization

2020 ◽  
Vol 49 (12) ◽  
pp. 3786-3795
Author(s):  
Wimalika R. K. Thalgaspitiya ◽  
Tharindu Kankanam Kapuge ◽  
Junkai He ◽  
Peter Kerns ◽  
Andrew G. Meguerdichian ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Oxide Composite ◽  
Highly Efficient ◽  
Reduced Graphene ◽  
Doped Titanium Dioxide

A novel, mesoporous molybdenum doped titanium dioxide-reduced graphene oxide composite is synthesized as a highly efficient heterogeneous solid acid catalyst.

SAC-13 silica nanocomposite solid acid catalyst in organic synthesis

2005 ◽  
Vol 100 (3-4) ◽  
pp. 437-440 ◽  
Author(s):  
István Ledneczki ◽  
Mária Darányi ◽  
Ferenc Fülöp ◽  
Árpád Molnár
Keyword(s):  
Organic Synthesis ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Silica Nanocomposite
Sign in / Sign up

Export Citation Format

Share Document