ChemInform Abstract: Highly Efficient Synthesis of 14-Aryl-14H-dibenzo[a,j]xanthenes Catalyzed by Carbon-Based Solid Acid under Solvent-Free Conditions.

ChemInform ◽  
2010 ◽  
Vol 41 (15) ◽  
Author(s):  
Valiollah Mirkhani ◽  
Majid Moghadam ◽  
Shahram Tangestaninejad ◽  
Iraj Mohammadpoor-Baltork ◽  
Mohammad Mahdavi
2009 ◽  
Vol 39 (24) ◽  
pp. 4328-4340 ◽  
Author(s):  
Valiollah Mirkhani ◽  
Majid Moghadam ◽  
Shahram Tangestaninejad ◽  
Iraj Mohammadpoor-Baltork ◽  
Mohammad Mahdavi

2019 ◽  
Vol 33 (6) ◽  
pp. e4917 ◽  
Author(s):  
Rongnan Yi ◽  
Zheng‐Jun Wang ◽  
Zhiwu Liang ◽  
Min Xiao ◽  
Xinhua Xu ◽  
...  

2013 ◽  
Vol 634-638 ◽  
pp. 504-507
Author(s):  
Wan Yi Liu ◽  
Ning Liu ◽  
Rui Yuan Zheng ◽  
Bing Li ◽  
Xia Zhang ◽  
...  

Coaled carbon-based solid acid (CCBSAC) is reported as a new, efficient and recyclable catalyst for the regioselective multicomponent synthesis of dihydropyrimidin-2(1H)-ones from aldehydes, β-ketoesters and urea or thiourea under solvent-free conditions. The structure and thermal stability of CCBSAC which resulted from ultra-clean coal resources mainly were characterized by IR, XRD, and TG. Nineteen dihydropyrimidin-2(1H)-ones examples were prepared and this catalyst could recycle up to 4 consecutive runs without losing its efficiency. The high yields of products, short reaction times, ease of work-up and clean procedure will make the present method a useful and important addition to the previous methodologies for the synthesis of dihydropyrimidin-2(1H)-ones.


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