Friedel-Crafts Reaction
Effective Synthesis of Optically Active Trifluoromethyldiazirinyl Homophenylalanine and Aroylalanine Derivatives with the Friedel-Crafts Reaction in Triflic Acid
... Title Effective Synthesis of Optically Active Trifluoromethyldiazirinyl Homophenylalanine and Aroylalanine Derivatives with the Friedel-Crafts Reaction in Triflic Acid.. Author(s) MURASH[r] ...
19
Enantioselective Friedel-Crafts reaction catalysed by alginate aerogels
... chemical reaction? In order to answer this question a representative reaction, the Friedel-Crafts alkylation of nitroalkenes with indoles, was tested in this master ...
67
Temperature Dual Enantioselective Control in a Rhodium-Catalyzed Michael-Type Friedel-Crafts Reaction: A Mechanistic Explanation
... the Friedel−Crafts (FC) adduct of the reaction between N−methyl−2−methylindole and trans−−nitrostyrene can be obtained by using (S Rh ,R C )−[(η 5 −C 5 Me 5 )Rh{(R)−Prophos}(H 2 O)][SbF 6 ] 2 as ...
19
5 Ferrocenyl 5 methyltetrahydrofuran 2 one, the product of the Friedel–Crafts reaction of ferrocene with γ methylenebutyrolactone
... We found that ferrocene reacts with this lactone in dichloro- methane at room temperature in the presence of BF3 and Et2O (molar ratio ferrocene:lactone:acid 1:2:4) to afford the additio[r] ...
10
FRIEDEL-CRAFT REACTION: A REVIEW
... the Friedel–Crafts ...the Friedel–Crafts alkylation of arenes with ketones and N-arylsulfonyl aldimines as alkylation reagents were ...the Friedel–Crafts alkylation, especially ...
11
Effect of Microwave Irradiation on Friedel Crafts Diphenylmethylation of Arenes
... The reaction between benzyl derivatives and arenes. reported [6]. The Friedel-Crafts reaction is a typical carbon-carbon bond form- ing reaction used in synthetic organic ...Among ...
9
Modified zeolite beta as catalysts in friedel-crafts alkylation of resorcinol
... chemicals is gaining much more attention in recent years (Tanabe and Hölderich, 1999). In this research, we have chosen zeolite Beta to be studied as the catalyst, following the current development in heterogeneous ...
32
A Novel Friedel Crafts Acylation Reaction of Anisole for Production of 4 Methoxyacetophenone with High Selectivity and Sufficient Reusability of Mordenite Zeolite Catalyst
... the reaction by work-up, neutra- lization of catalyst and/or used ...catalytic reaction and a wide spreading concern for environmental benig- nity have triggered the development of economic and green ...
8
Reactivity of mesoporous ZSM-5 zeolite towards Friedel-Crafts acylation of anisole and propionic anhydride
... in Friedel-Craft acylation of anisole and propionic anhydride to produce the main product, p-methoxypropiophenone and the side product, propionic ...for Friedel-Crafts reaction involving large ...
5
Synthesis of zeolite ferrierite from rice husk ash, characterization and activity towards friedel-crafts acylation for the formation of p-methoxypropiophenone
... towards Friedel-Crafts reaction between anisole and acid anhydrides was ...the reaction was 120 o C and ferrierite catalyst with SiO 2 /Al 2 O 3 ratio 12 gave the highest conversion of anisole ...
32
Catalytic Friedel-Crafts Reactions on Saturated Heterocycles and Small Rings for sp 3 -sp 2 Coupling of Medicinally Relevant Fragments
... or reaction time to achieve full ...the Friedel-Crafts reaction, due to increased elimination or decomposition, despite affording more stabilized ...
12
Synthesis of Chiral TFA-Protected α-Amino Aryl-Ketone Derivatives with Friedel–Crafts Acylation of α-Amino Acid N-Hydroxysuccinimide Ester
... via Friedel–Crafts acylation of N-protected α-amino ...this reaction is the utilization of toxic, corrosive and moisture-sensitive acylating ...for Friedel–Crafts acylation into various ...
15
Comparisons of O-acylation and Friedel–Crafts acylation of phenols and acyl chlorides and Fries rearrangement of phenyl esters in trifluoromethanesulfonic acid: effective synthesis of optically active homotyrosines
... Friedel-Crafts reaction of phenol 1 and N-TFA-Asp(Cl)-OMe 11 also afforded two C-acylated isomers 13 and 14 using neat TfOH at room temperature for an ...The reaction time of the ...
11
14 Friedel-Crafts Alkylation
... The reaction flask is removed from the apparatus and taken to a fume hood where the mixture is cautiously and slowly poured into a 50 mL beaker containing about 5 g of ...
7
Edge Functionalization of Pyrene as a Miniature Graphene via Friedel–Crafts Acylation Reaction in Poly(Phosphoric Acid)
... functionalization reaction progressed. At the end of the reaction, the color of the mixture turned to violet, and the reaction mixture was poured into distilled ...remove reaction medium and ...
6
The comparison of Friedel-Crafts alkylation and acylation as a means to synthesise alkyl xylenes
... of Friedel-Crafts alkylation with Friedel-Crafts acylation could be better investigated by performing each at different temperatures and comparing the configuration of the products at each ...
45
Enantioselective organocatalytic Friedel-Crafts alkylations of heterocycles and electron-rich benzenes
... a reaction with crotonaldehyde in the presence of 1· HCl in wet organic solvents (10% H 2 O v/v with ...this reaction displayed low enantiomeric excesses that steadily approached zero as the reaction ...
141
Lewis acid-promoted Friedel-Crafts alkylation of alpha-ketophosphate electrophiles
... 29 Reaction with p-OMe substituted aryl ketones and p-cresol gave benzofuran products at 23 ° ...ring. Reaction rates in our α-ketophosphate system qualitatively correlate with the electron-donating ability ...
189
Delaminated zeolite, ITQ-6 as heterogeneous catalyst for friedel crafts alkylation
... Keywords: Mesoporous ITQ-6, Microporous FER, alkylation of resorcinol Abstract The ability of ITQ-6, a kind of mesoporous zeolitic material to replace microporous zeolite as catalyst has attracted particular attention. ...
9
Trifluoroacetic Acid-Promoted Friedel-Crafts Aromatic Alkylation with Benzyl Alcohols
... Note: A: Reactions were conducted with a 5-fold excess of arene and TFA as solvent at reflux; B: Yield of distilled product based on benzyl alcohol 10 or 25; C: A ten-fold excess of TFA[r] ...
5