Explain the Sandmeyer's rea
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Explain the Claisen Condensa
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Explain the entropy concept w
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Sandmeyer's reaction :
- It is used for synthesize for aryl halides from aryl diazonium salts.
- Reagents - copper salts.
- In this first we have to react aniline to NaNO2 / HCl 0°C , so it will form the diazonium ion , then will react with CuCl (60-100°C) to form aryl halide.
- C6H5NH2 + NaNO2/HCl 0°C —> C6H5NH2+ —> C6H5Cl.
Claisen Condensation reaction :
- In this esters are react to form beta keto esters in the presence of C2H5ONa and Hydronium ion.
C2H5ONa/H3O+
- CH3COOC2H5 —>. CH3COCH2COC2H5 +C2H5OH
Entropy :
- It is defined as the "measure of a system's thermal energy per unit temperature that is unavailable for doing useful work".
- It is the measurement of disorder and randomness.
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