scholarly journals A two-dimensional conjugated polymer framework with fully sp2-bonded carbon skeleton

2016 ◽  
Vol 7 (25) ◽  
pp. 4176-4181 ◽  
Author(s):  
Xiaodong Zhuang ◽  
Wuxue Zhao ◽  
Fan Zhang ◽  
Yu Cao ◽  
Feng Liu ◽  
...  
Keyword(s):  
Conjugated Polymer ◽  
Knoevenagel Condensation ◽  
Condensation Reaction ◽  
Carbon Skeleton ◽  
Two Dimensional ◽  
Knoevenagel Condensation Reaction ◽  
Polymer Framework

2D conjugated COF based on olefin (CC) linkages has been readily synthesized using the Knoevenagel condensation reaction.

2-Methylimidazole-assisted synthesis of a two-dimensional MOF-5 catalyst with enhanced catalytic activity for the Knoevenagel condensation reaction

CrystEngComm ◽  
2018 ◽  
Vol 20 (36) ◽  
pp. 5327-5331 ◽  
Author(s):  
Changyan Guo ◽  
Yonghong Zhang ◽  
Li Zhang ◽  
Yi Zhang ◽  
Jide Wang
Keyword(s):  
Catalytic Activity ◽  
Knoevenagel Condensation ◽  
Condensation Reaction ◽  
Basic Site ◽  
Two Dimensional ◽  
Knoevenagel Condensation Reaction

A novel and facile strategy was developed for the synthesis of a 2D MOF-5 catalyst with 2-methyimidazole as regulation reagent and a Lewis basic site, which showed excellent catalytic activity in Knoevenagel condensation.

A new porous organic polymer containing Tröger's base units: Evaluation of the catalytic activity in Knoevenagel condensation reaction

2021 ◽  
pp. 104998
Author(s):  
Fidel E. Rodríguez-González ◽  
Vladimir Niebla ◽  
M.V. Velázquez-Tundidor ◽  
Luis H. Tagle ◽  
Rudy Martin-Trasanco ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Knoevenagel Condensation ◽  
Condensation Reaction ◽  
Organic Polymer ◽  
Porous Organic Polymer ◽  
Troger's Base ◽  
Knoevenagel Condensation Reaction ◽  
Base Units

Synthesis of β- and β,β-substituted Morita–Baylis–Hillman adducts using a two-step protocol

2012 ◽  
Vol 90 (5) ◽  
pp. 450-463 ◽  
Author(s):  
David I. Magee ◽  
Same Ratshonka ◽  
Jessica McConaghy ◽  
Maggie Hood
Keyword(s):  
Knoevenagel Condensation ◽  
Condensation Reaction ◽  
Facile Synthesis ◽  
Aliphatic Aldehydes ◽  
Tert Butyl ◽  
Keto Esters ◽  
Knoevenagel Condensation Reaction

The synthesis of a large number of β- and β,β-substituted keto esters was successful by the use of the Knoevenagel condensation reaction. The stereoselectivity of these reactions was improved by alteration of various substituent groups. Although there were few examples of complete Z selectivity, the use of tert-butyl acetoacetate with either aromatic or aliphatic aldehydes afforded Z selectivity. The selective reductions of these substituted keto esters was successfully achieved by using a combination of NaBH4 and CeCl3·7H2O or Yb(OTf)3, which allowed a facile synthesis of a large number of stereochemically pure substituted Morita–Baylis–Hillman adducts, including β,β-substituted adducts.

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