Facile synthesis of Cu nanoparticles supported on magnetic lignin-chitosan blend as a highly effective catalyst for the preparation of 5-aryl-1H-tetrazoles

2021 ◽  
Author(s):  
Mahmoud Nasrollahzadeh ◽  
Fahimeh Soleimani ◽  
Zahra Nezafat ◽  
Yasin Orooji ◽  
Fatemeh Ahmadpoor
Keyword(s):  
Cu Nanoparticles ◽  
Facile Synthesis ◽  
Effective Catalyst ◽  
Highly Effective

Waste corn-cob cellulose supported bio-heterogeneous copper nanoparticles for aza-Michael reactions

2016 ◽  
Vol 40 (1) ◽  
pp. 497-502 ◽  
Author(s):  
Shaheen M. Sarkar ◽  
T. Sultana ◽  
Tapan Kumar Biswas ◽  
Md. Lutfor Rahman ◽  
Mashitah Mohd Yusoff
Keyword(s):  
Copper Nanoparticles ◽  
Room Temperature ◽  
Cu Nanoparticles ◽  
Corn Cob ◽  
Effective Catalyst ◽  
Michael Reactions ◽  
Highly Effective

Waste corn-cob cellulose supported Cu-nanoparticles were found to be a highly effective catalyst for aza-Michael reactions at room temperature.

l-Prolinal Dithioacetal: A Highly Effective Organocatalyst for the Direct Nitro-Michael Addition to Selected Cyclic and Aromatic Ketones

Synthesis ◽  
2019 ◽  
Vol 51 (17) ◽  
pp. 3356-3368
Author(s):  
Piotr Pomarański ◽  
Zbigniew Czarnocki
Keyword(s):  
Michael Addition ◽  
Ring Size ◽  
Cyclic Ketones ◽  
Asymmetric Syntheses ◽  
Aromatic Ketones ◽  
Ring Systems ◽  
Effective Catalyst ◽  
Acetophenone Derivatives ◽  
Highly Effective ◽  
Related Compounds

The synthesis of novel l-prolinal dithioacetal and its application as an organocatalyst for the direct Michael addition of cyclic ketones and acetophenone derivatives to trans-β-nitrostyrene and related compounds is described. The prolinal dithioacetal acts as effective catalyst in the case of cyclic ketones of different ring size, in particular five- and six-membered examples, as well as larger and smaller ring systems. High enantioselectivity and diastereoselectivity is observed for different substrates and trans-β-nitrostyrenes. Also, the first asymmetric syntheses of selected 2-methyl-4-nitro-1,3-diphenylbutan-1-one derivatives by application of the obtained organocatalyst is presented.

Cross β-alkylation of primary alcohols catalysed by DMF-stabilized iridium nanoparticles

2021 ◽  
Author(s):  
Masaki Kobayashi ◽  
Hiroki Yamaguchi ◽  
Takeyuki Suzuki ◽  
Yasushi Obora
Keyword(s):  
Primary Alcohols ◽  
Recycling Process ◽  
Catalyst Recycling ◽  
Simple Method ◽  
Benzyl Alcohols ◽  
Effective Catalyst ◽  
Iridium Nanoparticles ◽  
Highly Effective ◽  
Linear Alcohols ◽  
The Cross

A simple method for the cross β-alkylation of linear alcohols with benzyl alcohols in the presence of DMF-stabilized iridium nanoparticles was developed. Furthermore, a highly effective catalyst-recycling process was also developed.

Highly Effective Catalyst for the Reaction of Trialkylphosphites with C˭X Electrophiles

2011 ◽  
Vol 186 (4) ◽  
pp. 796-798 ◽  
Author(s):  
Olga O. Kolodiazhna ◽  
Anastasia O. Kolodiazhna ◽  
Oleg I. Kolodiazhnyi
Keyword(s):  
Effective Catalyst ◽  
Highly Effective

Pd-PEPPSI-IPentCl: A Highly Effective Catalyst for the Selective Cross-Coupling of Secondary Organozinc Reagents

2012 ◽  
Vol 51 (45) ◽  
pp. 11354-11357 ◽  
Author(s):  
Matthew Pompeo ◽  
Robert D. J. Froese ◽  
Niloufar Hadei ◽  
Michael G. Organ
Keyword(s):  
Cross Coupling ◽  
Effective Catalyst ◽  
Highly Effective ◽  
Organozinc Reagents

Ethylenediamine: A Highly Effective Catalyst for One-Pot Synthesis of Aryl Nitroalkenes via Henry Reaction and Dehydration

2012 ◽  
Vol 30 (12) ◽  
pp. 2827-2833 ◽  
Author(s):  
Jianxin Yang ◽  
Jing Dong ◽  
Xia Lü ◽  
Qiang Zhang ◽  
Wei Ding ◽  
...  
Keyword(s):  
Henry Reaction ◽  
One Pot ◽  
Effective Catalyst ◽  
One Pot Synthesis ◽  
Highly Effective
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