Catalyst-free synthesis of novel isopropyl 2-amino-7,7-dimethyl-4-(aryl)-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carboxylate derivatives in aqueous ethanol under ultrasound irradiation

2020 ◽  
Vol 26 ◽  
pp. 100365 ◽  
Author(s):  
Nhlanhla Gracious Shabalala ◽  
Nagaraju Kerru ◽  
Suresh Maddila ◽  
Werner E. van Zyl ◽  
Sreekantha B. Jonnalagadda
Keyword(s):  
Aqueous Ethanol ◽  
Ultrasound Irradiation ◽  
Catalyst Free

Catalyst-free, one-pot, four-component green synthesis of functionalized 1-(2-fluorophenyl)-1,4-dihydropyridines under ultrasound irradiation

2016 ◽  
Vol 40 (6) ◽  
pp. 5107-5112 ◽  
Author(s):  
Nhlanhla Shabalala ◽  
Suresh Maddila ◽  
Sreekantha B. Jonnalagadda
Keyword(s):  
Green Synthesis ◽  
Ultrasonic Irradiation ◽  
Aqueous Ethanol ◽  
Ultrasound Irradiation ◽  
One Pot ◽  
Catalyst Free ◽  
New Compounds ◽  
Synthesis Protocol

A catalyst-free synthesis protocol for functionalized 1,4-dihydropyridines under ultrasonic irradiation in aqueous ethanol is reported with excellent yields. Eleven new compounds are synthesized using dimethylacetylenedicarboxylate, 2-fluoroaniline, malononitrile and various substituted aldehydes.

scholarly journals A multicomponent, facile and catalyst-free microwave-assisted protocol for the synthesis of pyrazolo-[3,4-b]-quinolines under green conditions

RSC Advances ◽  
2019 ◽  
Vol 9 (53) ◽  
pp. 30768-30772 ◽  
Author(s):  
Mandlenkosi Robert Khumalo ◽  
Surya Narayana Maddila ◽  
Suresh Maddila ◽  
Sreekantha B. Jonnalagadda
Keyword(s):  
Ambient Temperature ◽  
Aqueous Ethanol ◽  
Reaction Medium ◽  
One Pot ◽  
Microwave Assisted ◽  
Catalyst Free ◽  
Green Conditions

A facile, swift and ecofriendly microwave-assisted multi-component/one-pot protocol is designed for the synthesis of novel pyrazolo-[3,4-b]-quinolines at ambient temperature in aqueous ethanol as a reaction medium.

Facile one-pot green synthesis of 2-amino-4H-benzo[g]chromenes in aqueous ethanol under ultrasound irradiation

2020 ◽  
Vol 50 (13) ◽  
pp. 1960-1971 ◽  
Author(s):  
Shabalala Nhlanhla Gracious ◽  
Nagaraju Kerru ◽  
Suresh Maddila ◽  
Werner E. van Zyl ◽  
Sreekantha B. Jonnalagadda
Keyword(s):  
Green Synthesis ◽  
Aqueous Ethanol ◽  
Ultrasound Irradiation ◽  
One Pot

ChemInform Abstract: A One-Pot Three-Component Synthesis of Novel α-Sulfamidophosphonates under Ultrasound Irradiation and Catalyst-Free Conditions.

ChemInform ◽  
2015 ◽  
Vol 46 (37) ◽  
pp. no-no
Author(s):  
Billel Belhani ◽  
Malika Berredjem ◽  
Marc Le Borgne ◽  
Zouhair Bouaziz ◽  
Jacques Lebreton ◽  
...  
Keyword(s):  
Ultrasound Irradiation ◽  
One Pot ◽  
Catalyst Free

Ultrasound irradiation promoted catalyst-free construction of formamidine framework using isocyanide as building blocks

2011 ◽  
Vol 52 (21) ◽  
pp. 2771-2775 ◽  
Author(s):  
Tong-Hao Zhu ◽  
Xu Zhu ◽  
Xiao-Ping Xu ◽  
Tao Chen ◽  
Shun-Jun Ji
Keyword(s):  
Ultrasound Irradiation ◽  
Building Blocks ◽  
Catalyst Free ◽  
Free Construction

Catalyst-Free One-Pot Synthesis of Ketene Imines under Ultrasound Irradiation

2014 ◽  
Vol 97 (10) ◽  
pp. 1422-1426 ◽  
Author(s):  
Hamideh Emtiazi ◽  
Mohammad A. Amrollahi
Keyword(s):  
Ultrasound Irradiation ◽  
One Pot ◽  
Catalyst Free ◽  
One Pot Synthesis
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