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Start with the aromatic aldehyde and acid anhydride. Salt of an Carboxylic acid is used to abstract a proton from the alpha carbon of acid anhydride. The carbanion generated would attack the electrophillic centre of aldehyde. This centre is carbonyl carbon. There after an stablised anion is formed. Further hydrolysis gives the required Cinnamic acid.
What else can I help you with?
What would be the effect of carrying out the sodium iodide in acetone reaction with the alkyhalides using an iodide solution half as concentrated?
A reaction with alkyl halides in NaI with acetone is by the Sn2 mechanism. The rate for an Sn2 mechanism is directly proportional to the concentration of the nucleophile: rate = k[nucleophile][alkylhalide] If the iodine solution (the nucleophile) is half as concentrated, then the rate will also be halved. rate = k [nucleophile]/2 [alkyl halide]
The equation for the reaction between 2-pentene and bromine?
The reaction between 2-pentene and bromine is an addition reaction. The double bond in 2-pentene reacts with bromine to form a dibromoalkane. This reaction proceeds via an electrophilic addition mechanism.
What is the Reaction of iron sulphate with potassium iodide?
When iron sulfate reacts with potassium iodide, a double displacement reaction occurs where potassium sulfate and iron(II) iodide are formed. The balanced chemical equation for this reaction is FeSO4 + 2KI → FeI2 + K2SO4. This reaction is characterized by a color change from yellow (iron sulfate) to brown (iron(II) iodide).
Why is the reaction of ethene and chlorine not a free-radical addition reaction?
The reaction of ethene and chlorine is not a free-radical addition reaction because it proceeds via an electrophilic addition mechanism. The π electrons of ethene attack the electrophilic chlorine molecule, leading to the formation of a cyclic intermediate called a chloronium ion. This is followed by the attack of a chloride ion to give the final product.
What kind of reaction take place between the magnesium and EDTA?
Magnesium and EDTA react very quickly through a highly energized ionization reaction in which the EDTA can lose up to 4 hydrogens. The powerful ionization drives the reaction to completion. You can titrate the magnesium and calculate the point of reaction to better understand the mechanism
What is perkin condensation?
The Perkin condensation is a reaction where an aromatic aldehyde reacts with an anhydride in the presence of an acid catalyst to form a β-keto ester. This reaction is named after English chemist William Henry Perkin.
Why perkin reaction is not possible for aliphatic aldehyde?
The Perkin reaction typically involves the condensation of aromatic aldehydes with an acid anhydride in the presence of a base to form an α,β-unsaturated carboxylic acid. Aliphatic aldehydes lack the necessary stabilization of the intermediate enolate ion due to the absence of conjugation with an aromatic ring, making the Perkin reaction unfavorable for aliphatic aldehydes.
Is there any exceptional case of Perkin reaction?
yes synthesis of phenanthrene is an exceptional case of perkin reaction.here acetate ion is added to aromatic aldehydes though acetic anhydrides usually work it out
How can reaction be classified?
mechanism. mechanism.
What has the author Gibson Dyson written?
Gibson Dyson has written: 'Perkin's reaction' -- subject(s): Accessible book
What is the mechanism for the synthesis of E and Z alpha phenylcinnamic acid?
The synthesis of E and Z α-phenylcinnamic acid can be achieved through the Wittig reaction, which involves the reaction of an aldehyde or ketone with a phosphonium ylide to form an alkene. By selecting appropriate reactants with specific stereochemistry, either the E or Z isomer can be obtained. Moreover, the stereochemistry of the product can be controlled by the choice of the phosphonium ylide used in the reaction.
What is the mechanism of reaction between Wagner's reagent and alkaloids?
what is the reaction mechanism between wagner's reagent and alkaloids
When did Harold Perkin die?
Harold Perkin died in 2004.
When was Harold Perkin born?
Harold Perkin was born in 1926.
When was Perkin Medal created?
Perkin Medal was created in 1906.
When did Graham Perkin die?
Graham Perkin died in 1975.
When was Graham Perkin born?
Graham Perkin was born in 1929.
