scholarly journals Effect of Different Solvents on Biginelli Reaction Using Layered Double Hyroxide (LDH) As an Ecofriendly Catalyst

Author(s):  
N. S. Ghotkar ◽  
D. A. Pund ◽  
B. N. Berad

A simple and efficient method of the 3,4- dihydropyrimidin-2(1H)-ones/thiones synthesis in good to high yield is described. It consists in a one-pot three-component Biginelli condensation using Layered double hydroxide (LDH) as catalyst. The effect of different solvents on the yields of final product also been studied. Highly polar solvent as well as highly non-polar gives less yields in presence of LDH catalyst.

2020 ◽  
Vol 2020 (28) ◽  
pp. 2726-2736
Author(s):  
Isabel B. Calhau ◽  
Ana C. Gomes ◽  
Sofia M. Bruno ◽  
Ana C. Coelho ◽  
Clara I. R. Magalhães ◽  
...  

RSC Advances ◽  
2016 ◽  
Vol 6 (20) ◽  
pp. 16419-16436 ◽  
Author(s):  
Michele A. Rocha ◽  
Philippe A. D. Petersen ◽  
Erico Teixeira-Neto ◽  
Helena M. Petrilli ◽  
Fabrice Leroux ◽  
...  

Systems comprising anti-inflammatory sulindac intercalated into biocompatible layered double hydroxides nanovehicles were isolated through one pot synthetic method and showed high crystallinity and curled or scrolled particles.


2019 ◽  
Vol 20 ◽  
pp. 100596 ◽  
Author(s):  
Xiaoyong Ma ◽  
Pengkun Wei ◽  
Yang Yang ◽  
Hongzhi Kang ◽  
Donggang Guo ◽  
...  

2015 ◽  
Vol 3 (20) ◽  
pp. 10858-10863 ◽  
Author(s):  
Peipei Huang ◽  
Changyan Cao ◽  
Yongbin Sun ◽  
Shuliang Yang ◽  
Fang Wei ◽  
...  

Sandwich-like nanocomposites with cobalt nickel aluminum layered double hydroxide growth on both sides of reduced graphene oxide show excellent pseudocapacitive properties.


2021 ◽  
Vol 8 ◽  
Author(s):  
Fa-Jie Chen ◽  
Zhenguo Hua ◽  
Jianhui Chen ◽  
Jiajia Chen ◽  
Daesung Lee ◽  
...  

Herein, we report an efficient method for the synthesis of (Z)-β-halovinyl ketones through a one-pot Sonogashira coupling and hydrohalogenation reaction promoted by palladium-copper catalyst and Brønsted acid. The ynone intermediates are generated in situ from readily available acid chlorides and terminal alkynes at room temperature, which are directly converted to (Z)-β-halovinyl ketones by treating with triflic acid. This method avoids the use of an external halogen source and features broad substrate scope, high yield, and good to excellent stereoselectivity.


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