Practical and efficient synthesis of tetrahydrobenzo[b]pyran using caffeine supported on silica as an ionic liquid solid acid catalyst

2018 ◽  
Vol 15 (12) ◽  
pp. 2811-2819
Author(s):  
Mohammad Bakherad ◽  
Ali Keivanloo ◽  
Elmira Moradian ◽  
Amir H. Amin ◽  
Rahele Doosti ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Efficient Synthesis

Efficient Synthesis of 2,3-Dihydro-1H-Perimidine Derivatives Using HBOB as a Novel Solid Acid Catalyst

2012 ◽  
Vol 65 (1) ◽  
pp. 86 ◽  
Author(s):  
Sunanda B. Phadtare ◽  
R. Vijayraghavan ◽  
Ganapati S. Shankarling ◽  
Douglas R. MacFarlane
Keyword(s):  
Boric Acid ◽  
Efficient Method ◽  
Solid Acid ◽  
Simple Procedure ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Thermal Processes ◽  
Efficient Synthesis ◽  
Acid Catalyzed ◽  
Time Required

An efficient method for the synthesis of substituted 2,3-dihydro-1H-perimidine derivatives is described using bis(oxalato)boric acid (HBOB) as catalyst. The methodology provides an easily handled and recyclable catalyst for this type of reaction as an alternative platform to the conventional acid-catalyzed thermal processes. The time required to complete the reaction using HBOB was found to be shorter than conventional methods. Recycling of the catalyst has been efficiently achieved using a simple procedure.

Ultrasound-Ionic Liquid Pretreatment Enhanced Conversion of the Sugary Food Waste to 5-Hydroxymethylfurfural in Ionic Liquid/Solid Acid Catalyst System

2019 ◽  
Vol 150 (5) ◽  
pp. 1373-1388 ◽  
Author(s):  
Qinghua Ji ◽  
Xiaojie Yu ◽  
Abu El-Gasim A. Yagoub ◽  
Mo Li ◽  
Olugbenga Abiola Fakayode ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Food Waste ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Catalyst System ◽  
Ionic Liquid Pretreatment

Enhanced hydrolysis of bamboo biomass by chitosan based solid acid catalyst with surfactant addition in ionic liquid

2017 ◽  
Vol 174 ◽  
pp. 154-159 ◽  
Author(s):  
Wenqing Si ◽  
Yichen Li ◽  
Jie Zheng ◽  
Shun’an Wei ◽  
Dan Wang
Keyword(s):  
Ionic Liquid ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Hydrolysis Of

Efficient synthesis of diphenyl carbonate from dibutyl carbonate and phenol using square-shaped Zn–Ti–O nanoplates as solid acid catalysts

RSC Advances ◽  
2015 ◽  
Vol 5 (103) ◽  
pp. 84621-84626 ◽  
Author(s):  
Peixue Wang ◽  
Shimin Liu ◽  
Feng Zhou ◽  
Benqun Yang ◽  
Ahmad S. Alshammari ◽  
...  
Keyword(s):  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Solid Acid Catalysts ◽  
Diphenyl Carbonate ◽  
Acid Catalysts ◽  
Efficient Synthesis

Efficient synthesis of diphenyl carbonate from dibutyl carbonate and phenol using square-shaped Zn–Ti–O nanoplates as solid acid catalyst.

scholarly journals One-pot Three-component Synthesis of β-amino Carbonyl Compounds Using Nanocrystalline Solid Acid Catalyst

2013 ◽  
Vol 1 ◽  
pp. 194308921350716 ◽  
Author(s):  
Abbas Teimouri ◽  
Leila Ghorbanian
Keyword(s):  
Carbonyl Compounds ◽  
Organic Molecules ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Reaction Times ◽  
Acid Catalyst ◽  
Aromatic Aldehydes ◽  
Efficient Synthesis ◽  
One Pot ◽  
The Mannich Reaction

This study presents a simple highly versatile and efficient synthesis of various β-amino carbonyl compounds in the Mannich reaction of acetophenone with aromatic aldehydes and aromatic amines in the presence of nanosulfated zirconia, nanostructured ZnO, nano-γ-alumina, and nano-ZSM-5 zeolites as the catalyst in ethanol at moderate temperature. The optical properties of the nanostructured organic molecules were studied. The advantages of methods are short reaction times, milder conditions, easy workup, and purification of products by nonchromatographic methods. The catalysts can be recovered for the subsequent reactions and reused without any appreciable loss of efficiency.

Multicomponent synthesis of new curcumin-based pyrano[2,3-d]pyrimidine derivatives using a nano-magnetic solid acid catalyst

2017 ◽  
Vol 41 (20) ◽  
pp. 12293-12302 ◽  
Author(s):  
Farhad Panahi ◽  
Esmaeil Niknam ◽  
Samira Sarikhani ◽  
Fatemeh Haghighi ◽  
Ali Khalafi-Nezhad
Keyword(s):  
Multicomponent Reaction ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Efficient Synthesis ◽  
Multicomponent Synthesis ◽  
Pyrimidine Derivatives ◽  
Mild Conditions ◽  
Magnetic Solid ◽  
Magnetic Solid Acid

An novel nano-magnetic solid acid catalyst was used for the efficient synthesis of new curcumin-based pyrano[2,3-d]pyrimidine derivatives via a multicomponent reaction under mild conditions.

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