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प्रश्न
How will you convert ethanal into the following compound?
But-2-enoic acid
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उत्तर
\[\ce{\underset{Ethanal}{2CH3CHO}->[dil.NaOH][Aldol condensation ]\underset{but-2-enal}{CH3CH = CHCHO}->[Ag(NH3)^+2OH-][Tollens' reagent]\underset{But-2-enoic acid}{CH3CH = CHCO2H}}\]
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संबंधित प्रश्न
Give a simple chemical test to distinguish between the following pair of compounds:
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Distinguish between:
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Give a simple chemical test to distinguish between the following pair of compounds :
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Give a simple chemical test to distinguish between the following pair of compounds:
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Which of the following tests/reactions is given by aldehydes as well as ketones?
A hydrocarbon (A) with molecular formula C5H10 on ozonolysis gives two products (B) and (C). Both (B) and (C) give a yellow precipitate when heated with iodine in presence of NaOH while only (B) give a silver mirror on reaction with Tollen’s reagent.
- Identify (A), (B) and (C).
- Write the reaction of B with Tollen’s reagent.
- Write the equation for iodoform test for C.
- Write down the equation for aldol condensation reaction of B and C.
What is the composition of Fehling's reagent?
Which among the above compound/s does/do not form Silver mirror when treated with Tollen's reagent?
An organic compound neither reacts with neutral ferric chloride solution nor with Fehling solution. It however, reacts with Grignard reagent and gives positive iodoform test. The compound is:
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- \[\ce{RCN ->[reduction]}\]
- \[\ce{RCN ->[(i) CH3MgBr][(ii) H2O]}\]
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