scholarly journals Environmentally benign and diastereoselective synthesis of 2,4,5-trisubstituted-2-imidazolines

RSC Advances ◽  
2017 ◽  
Vol 7 (84) ◽  
pp. 53278-53289 ◽  
Author(s):  
Hai Anh Le Phuong ◽  
Levente Cseri ◽  
George F. S. Whitehead ◽  
Arthur Garforth ◽  
Peter Budd ◽  
...  
Keyword(s):  
Reaction Kinetics ◽  
Substituent Effects ◽  
Kinetics And Mechanism ◽  
Environmentally Benign ◽  
Diastereoselective Synthesis ◽  
One Pot

A one-pot, membrane-assisted synthesis of 2,4,5-trisubstituted-2-imidazolines was developed, and substituent effects, reaction kinetics and mechanism by DFT were studied.

An environmentally benign double Michael addition reaction of heterocyclic ketene aminals with quinone monoketals for diastereoselective synthesis of highly functionalized morphan derivatives in water

2017 ◽  
Vol 19 (15) ◽  
pp. 3574-3584 ◽  
Author(s):  
Yu-Lu Ma ◽  
Kai-Min Wang ◽  
Rong Huang ◽  
Jun Lin ◽  
Sheng-Jiao Yan
Keyword(s):  
Michael Addition ◽  
Addition Reaction ◽  
Environmentally Benign ◽  
Diastereoselective Synthesis ◽  
Michael Addition Reaction ◽  
One Pot ◽  
Ketene Aminals

This effort involved an efficient and concise one-pot procedure for the synthesis of morphans based on quinone monoketals 1 reacting with HKAs 2.

scholarly journals Trifluoromethyl syn- or anti-γ-amino alcohols by one-pot solvent-free Mannich-type reactions under temperature control

RSC Advances ◽  
2015 ◽  
Vol 5 (37) ◽  
pp. 29312-29318 ◽  
Author(s):  
Stefania Fioravanti ◽  
Luca Parise ◽  
Alessia Pelagalli ◽  
Lucio Pellacani ◽  
Laura Trulli
Keyword(s):  
Temperature Control ◽  
Strong Influence ◽  
Amino Alcohols ◽  
Solvent Free ◽  
Environmentally Benign ◽  
Diastereoselective Synthesis ◽  
Reaction Conditions ◽  
One Pot

A highly diastereoselective synthesis of fluorinated syn- or anti-γ-amino alcohols was reported by a simple and environmentally benign methodology. Unexpectedly, a strong influence of the reaction conditions on the facial selective attack was found.

Naturally Occurring Organic Acid-catalyzed Facile Diastereoselective Synthesis of Biologically Active (E)-3-(arylimino)indolin-2-one Derivatives in Water at Room Temperature

2019 ◽  
Vol 23 (16) ◽  
pp. 1778-1788 ◽  
Author(s):  
Gurpreet Kaur ◽  
Arvind Singh ◽  
Kiran Bala ◽  
Mamta Devi ◽  
Anjana Kumari ◽  
...  
Keyword(s):  
Room Temperature ◽  
Biologically Active ◽  
Environmentally Benign ◽  
Diastereoselective Synthesis ◽  
Substituted Anilines ◽  
Reaction Conditions ◽  
Naturally Occurring ◽  
Acid Catalyzed ◽  
Reaction Media ◽  
Column Chromatographic

A simple, straightforward and efficient method has been developed for the synthesis of (E)-3-(arylimino)indolin-2-one derivatives and (E)-2-((4-methoxyphenyl)imino)- acenaphthylen-1(2H)-one. The synthesis of these biologically-significant scaffolds was achieved from the reactions of various substituted anilines and isatins or acenaphthaquinone, respectively, using commercially available, environmentally benign and naturally occurring organic acids such as mandelic acid or itaconic acid as catalyst in aqueous medium at room temperature. Mild reaction conditions, energy efficiency, good to excellent yields, environmentally benign conditions, easy isolation of products, no need of column chromatographic separation and the reusability of reaction media are some of the significant features of the present protocol.

scholarly journals Regioselective, one-pot, multi-component, green synthesis of substituted benzo[c]pyrazolo[2,7]naphthyridines

RSC Advances ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 5938-5950 ◽  
Author(s):  
Abida Ashraf ◽  
Zahid Shafiq ◽  
Khalid Mahmood ◽  
Muhammad Yaqub ◽  
Waqar Rauf
Keyword(s):  
Green Synthesis ◽  
Environmentally Benign ◽  
One Pot

An efficient and environmentally benign synthetic protocol has been developed for the synthesis of benzo[c]pyrazolo[2,7]naphthyridine derivatives through regioselective multi-component “on-water” reaction of isatin, malononitrile and 3-aminopyrazole.

Uncatalyzed diastereoselective synthesis of alkyliminofurochromone-derived benzylmalononitriles via a three-component cascade reaction: competition between Diels–Alder cycloaddition and Michael addition

2021 ◽  
Author(s):  
Mohammad Bagher Teimouri ◽  
Zahra Mokhtare ◽  
Hamid Reza Khavasi
Keyword(s):  
Michael Addition ◽  
Heterocyclic Ring ◽  
Cascade Reaction ◽  
Diels Alder ◽  
Chemical Bonds ◽  
Diastereoselective Synthesis ◽  
Atom Economy ◽  
One Pot

Three new chemical bonds and three stereogenic centres and one heterocyclic ring were assembled stereoselectively in a convenient high atom-economy one-pot operation.

scholarly journals Environmentally Benign Synthesis of Tetra-Substituted Imidazoles through 4-Components Strategy Mediated by (S)-3-Methyl-1, 1-Diphenylbutane-1, 2-Diamine

2018 ◽  
Vol 10 (1) ◽  
pp. 39-50
Author(s):  
M. Rana ◽  
A. Rahman ◽  
P. K. Roy ◽  
H. N. Roy
Keyword(s):  
Cost Effectiveness ◽  
Environmentally Benign ◽  
One Pot ◽  
Benign Synthesis

(S)-3-Methyl-1, 1-diphenylbutane-1, 2-diamine has been found to be a mild and effective organocatalyst for one-pot 4-components synthesis of 1, 2, 4, 5-tetra-substituted imidazoles. The key benefits of this protocol is high yielding, cost effectiveness, easy purification and above all, environmentally benign.

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