ChemInform Abstract: Highly Efficient Oxidative Coupling of Thiols by Active Manganese Dioxide (AMD) and Barium Manganate (BM) under Solvent-Free Conditions at Room Temperature.

ChemInform ◽  
2010 ◽  
Vol 30 (36) ◽  
pp. no-no
Author(s):  
Habib Firouzabadi ◽  
Mohammed Abbassi ◽  
Babak Karimi
Keyword(s):  
Manganese Dioxide ◽  
Oxidative Coupling ◽  
Room Temperature ◽  
Solvent Free ◽  
Highly Efficient ◽  
Solvent Free Conditions

A highly efficient, solvent-free and energy-effective method of cellulose acetylation

e-Polymers ◽  
2005 ◽  
Vol 5 (1) ◽  
Author(s):  
Abdelmajid Memmi ◽  
Robert Granet ◽  
Yves Champavier ◽  
Pierre Krausz
Keyword(s):  
Nmr Spectroscopy ◽  
Acetic Anhydride ◽  
1H Nmr ◽  
1H Nmr Spectroscopy ◽  
Room Temperature ◽  
Solvent Free ◽  
Highly Efficient ◽  
Solvent Free Conditions ◽  
Cellulose Acetates

AbstractAcetylation of cellulose by acetic anhydride was found to be catalysed quantitatively by iodine under solvent-free conditions at room temperature. Cellulose acetates were characterised by 1H NMR spectroscopy.

scholarly journals Hydroboration of nitriles and imines by highly active zinc dihydride catalysts

RSC Advances ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 1128-1133
Author(s):  
Xiaoming Wang ◽  
Xin Xu
Keyword(s):  
Room Temperature ◽  
Solvent Free ◽  
Highly Efficient ◽  
Highly Active ◽  
Solvent Free Conditions

Molecular zinc dihydrides were found to be highly efficient catalysts for the hydroboration of nitriles and imines at room temperature under solvent-free conditions.

Highly Efficient Michael Reactions of Nitroolefins by Grinding Means

2019 ◽  
Vol 16 (3) ◽  
pp. 449-457 ◽  
Author(s):  
Dong-Xiao Cui ◽  
Yue-Dan Li ◽  
Jun-Chao Zhu ◽  
Yan-Yan Jia ◽  
Ai-Dong Wen ◽  
...  
Keyword(s):  
Organic Synthesis ◽  
Room Temperature ◽  
Michael Reaction ◽  
Building Blocks ◽  
Solvent Free ◽  
Michael Additions ◽  
Highly Efficient ◽  
Michael Reactions ◽  
Michael Adducts ◽  
Solvent Free Conditions

Aim and Objective: The direct β-functionalization of trans-β-nitroolefins by Michael reaction is regarded as an efficient way to provide precursors for β-functional amines. However, Michael additions by grinding means with solvent-free conditons are rarely reported. We have developed facile access to β-functional nitroalkanes by grinding means under solvent-free conditions. Materials and Methods: From commercially available materials including ethyl 2-nitroacetate, alkyl 2-cyanoacetates and malononitrile, the grinding reactions between these above-mentioned activated methylenecompounds and various trans-β-nitroolefins were performed at room temperature and solvent-free conditions. Results: A highly efficient direct Michael reaction of nitroolefins by simple grinding means has been developed. Various trans-nitrostyrenes were easily converted into corresponding β-functional nitroalkanes in excellent yields within 5~10 min (up to 36 examples). Conclusion: Herein, we have developed a simple and efficient way to β-functional nitroalkanes through Michael reactions by grinding means. The grinding Michael reaction is fast, clean and stable and these Michael adducts could be easily converted into the other amino compounds served as building blocks in organic synthesis.

scholarly journals Solvent-free and room temperature synthesis of 3-arylquinolines from different anilines and styrene oxide in the presence of Al2O3/MeSO3H

2017 ◽  
Vol 13 ◽  
pp. 1977-1981 ◽  
Author(s):  
Hashem Sharghi ◽  
Mahdi Aberi ◽  
Mohsen Khataminejad ◽  
Pezhman Shiri
Keyword(s):  
Room Temperature ◽  
Styrene Oxide ◽  
Environmentally Friendly ◽  
Solvent Free ◽  
Temperature Synthesis ◽  
One Pot ◽  
Room Temperature Synthesis ◽  
Highly Efficient ◽  
Rapid Access ◽  
Solvent Free Conditions

A highly efficient, simple and environmentally friendly synthesis of 3-arylquinolines has been developed in the presence of Al2O3/MeSO3H via one-pot reaction of anilines and styrene oxide. This methodology provides very rapid access to 3-arylquinolines in good to excellent yields under solvent-free conditions at room temperature in air.

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