ChemInform Abstract: Clean and Efficient Synthesis of Pyrazole Derivatives in Aqueous Media

ChemInform ◽  
2015 ◽  
Vol 46 (32) ◽  
pp. no-no
Author(s):  
Pan Xu ◽  
Yu-Kun Xi ◽  
Hui Chen ◽  
Da-Qing Shi
Keyword(s):  
Aqueous Media ◽  
Pyrazole Derivatives ◽  
Efficient Synthesis

Clean and Efficient Synthesis of Pyrazole Derivatives in Aqueous Media

2014 ◽  
Vol 52 (2) ◽  
pp. 611-613 ◽  
Author(s):  
Pan Xu ◽  
Yu-Kun Xi ◽  
Hui Chen ◽  
Da-Qing Shi
Keyword(s):  
Aqueous Media ◽  
Pyrazole Derivatives ◽  
Efficient Synthesis

Efficient synthesis of chromonylpyrano[c]coumarin, chromonylbenzo[b]pyran, and pyrano[d]pyrimidine in aqueous media

2015 ◽  
Vol 12 (10) ◽  
pp. 1859-1865 ◽  
Author(s):  
Hamid Reza Bijanzadeh ◽  
Saber Mehrparvar ◽  
Saeed Balalaie
Keyword(s):  
Aqueous Media ◽  
Efficient Synthesis

Efficient synthesis of 5H-thiazolo[3,2-a]pyrimidines from reactions of 3,4-dihydropyrimidine-thiones with α-bromoacetone in aqueous media

2008 ◽  
Vol 19 (2) ◽  
pp. 149-153 ◽  
Author(s):  
Zheng-Jun Quan ◽  
Zhang Zhang ◽  
Jun-Ke Wang ◽  
Xi-Cun Wang ◽  
Ya-Juan Liu ◽  
...  
Keyword(s):  
Aqueous Media ◽  
Efficient Synthesis

ChemInform Abstract: A New General and Efficient Synthesis of Imidazo(4,5-c)pyrazole Derivatives.

ChemInform ◽  
1990 ◽  
Vol 21 (52) ◽  
Author(s):  
C. B. VICENTINI ◽  
A. C. VERONESE ◽  
P. GIORI ◽  
B. LUMACHI ◽  
M. GUARNERI
Keyword(s):  
Pyrazole Derivatives ◽  
Efficient Synthesis

Efficient synthesis of pyrido[2,3-d]pyrimidine-7-carboxylic acids catalyzed by a TiO2/SiO2 nanocomposite in aqueous media at room temperature

2018 ◽  
Vol 73 (9) ◽  
pp. 641-645 ◽  
Author(s):  
Sepehr Sadegh-Samiei ◽  
Shahrzad Abdolmohammadi
Keyword(s):  
Heterogeneous Catalyst ◽  
Carboxylic Acids ◽  
Room Temperature ◽  
Aqueous Media ◽  
Reaction Times ◽  
Molar Ratio ◽  
Efficient Synthesis ◽  
Reaction Conditions ◽  
Moderate Reaction ◽  
Recyclable Heterogeneous Catalyst

AbstractA novel and efficient synthesis of eight 5-aryl-1,3-dimethyl-2,4-dioxo-1,2,3,4,5,8-hexahydropyrido[2,3-d]pyrimidine-7-carboxylic acids using a TiO2/SiO2 nanocomposite with a molar ratio of 1:1 as a recyclable heterogeneous catalyst is described. The desired products, five of which are new, are formed in short reaction times (2–3 h) with high to excellent yields (94%–98%) under very moderate reaction conditions (room temperature, aqueous media).

ChemInform Abstract: Efficient Synthesis of 5H-Thiazolo[3,2-a]pyrimidines from Reactions of 3,4-Dihydropyrimidine-thiones with α-Bromoacetone in Aqueous Media.

ChemInform ◽  
2008 ◽  
Vol 39 (3) ◽  
Author(s):  
Xi-Cun Wang ◽  
Zheng-Jun Quan ◽  
Zhang Zhang ◽  
Ya-Juan Liu ◽  
Peng-Yan Ji
Keyword(s):  
Aqueous Media ◽  
Efficient Synthesis

Three‐Component One‐Pot Synthesis of 1,4‐Dihydropyrano[2,3‐c]pyrazole Derivatives in Aqueous Media

2004 ◽  
Vol 34 (24) ◽  
pp. 4557-4563 ◽  
Author(s):  
Daqing Shi ◽  
Jie Mou ◽  
Qiya Zhuang ◽  
Lihui Niu ◽  
Nan Wu ◽  
...  
Keyword(s):  
Aqueous Media ◽  
Pyrazole Derivatives ◽  
One Pot ◽  
One Pot Synthesis
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