Environmentally benign access to isoindolinones: synthesis, separation and resource recycling

2020 ◽  
Vol 22 (9) ◽  
pp. 2873-2878
Author(s):  
Weiwei Guo ◽  
Qi Zhang ◽  
Yang Cao ◽  
Kaihua Cai ◽  
Shengyong Zhang ◽  
...  
Keyword(s):  
Environmentally Benign ◽  
Tandem Reaction ◽  
Unsaturated Ketones ◽  
Resource Recycling

We have developed a green and facile approach for the straightforward installation of isoindolinone skeletons via a tandem reaction of 2-cyanobenzaldehydes and α,β-unsaturated ketones/esters.

Epoxidation of α,β-unsaturated ketones in water. An environmentally benign protocol

2003 ◽  
Vol 5 (4) ◽  
pp. 425-428 ◽  
Author(s):  
G. Fioroni ◽  
F. Fringuelli ◽  
F. Pizzo ◽  
L. Vaccaro
Keyword(s):  
Environmentally Benign ◽  
Unsaturated Ketones

An environmentally benign protocol: catalyst-free Michael addition of aromatic amines to α,β-unsaturated ketones in glycerol

2012 ◽  
Vol 39 (2) ◽  
pp. 517-525 ◽  
Author(s):  
Anguo Ying ◽  
Qunhui Zhang ◽  
Hongmin Li ◽  
Gangfeng Shen ◽  
Weizhong Gong ◽  
...  
Keyword(s):  
Michael Addition ◽  
Aromatic Amines ◽  
Environmentally Benign ◽  
Unsaturated Ketones ◽  
Catalyst Free

scholarly journals Nano Copper-Cobalt Ferrite Catalyzed One-Pot Green Combination of β, γ- Unsaturated Ketones by Ultrasonication Method

2020 ◽  
pp. 569-618
Keyword(s):  
Heterogeneous Catalysts ◽  
Cobalt Ferrite ◽  
Reaction Medium ◽  
Environmentally Benign ◽  
Acid Chlorides ◽  
One Pot ◽  
Unsaturated Ketones ◽  
Cobalt Ferrites ◽  
Several Intervals

Nano Copper-Cobalt ferrite materials have been used as magnetically separable and reusable heterogeneous catalysts for the synthesis of β, γ - unsaturated ketones over the allylation of acid chlorides with allyl bromides is presented. Ultrasonication method used to the reaction between substituted acid chlorides with allyl halides is carried out in attendance of Nano Copper-Cobalt ferrites at room temperature by using Tetrahydrofuran (THF) as a Solvent. The present method is environmentally benign and gives very good yields. The catalyst is separated from the reaction medium using a strong magnet and reused several intervals without the loss of much catalytic activity. The mechanism of the reaction and characterization of the products are presented

Efficiently diastereoselective synthesis of functionalized hydro-carbazoles by base-mediated tandem annulation of 1-(2-amino-aryl)prop-2-en-1-ones and sulfur ylide

2020 ◽  
Vol 7 (12) ◽  
pp. 1469-1473 ◽  
Author(s):  
Chengyuan Wang ◽  
Jiong Zhang ◽  
Zheyuan Wang ◽  
Xin-Ping Hui
Keyword(s):  
Tandem Reaction ◽  
Diastereoselective Synthesis ◽  
Unsaturated Ketones ◽  
Sulfur Ylide

The base-promoted [3 + 3]/[1 + 4] tandem reaction of tosyl-protected o-amino α,β-unsaturated ketones and crotonate-derived sulfur ylide is developed for efficiently diastereoselective synthesis of functionalized hydrocarbazoles.

An improved and sustainable approach for the synthesis of α,β-dibromo ketones using ceric ammonium nitrate and ammonium bromide

2016 ◽  
Vol 5 (1) ◽  
Author(s):  
Balaji B. Totawar ◽  
Pramod S. Kulkarni ◽  
Zubaidha K. Pudukulathan
Keyword(s):  
Ammonium Nitrate ◽  
Good Yield ◽  
Room Temperature ◽  
Bond Formation ◽  
Ceric Ammonium Nitrate ◽  
Environmentally Benign ◽  
Ammonium Bromide ◽  
Unsaturated Ketones ◽  
Radical Method ◽  
Dibromo Ketones

AbstractA simple and environmentally benign procedure for the bromination of substituted α,β-unsaturated ketones in good yield has been described using ammonium bromide as a brominating agent and ceric ammonium nitrate (CAN) as a single-electron oxidant to afford α,β-dibromoketones. The reaction involves C-Br bond formation by radical method generated by CAN. The reaction can be carried out by either at room temperature, stirring in solvent CH

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