Grignard reagent should be prepared under anhydrous conditions, because it is very reactive. It reacts very quickly with any source of proton to give hydrocarbon. It reacts with water very quickly. Therefore, it is necessary to avoid moisture from the Grignard reagents.
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amaan4436
a) Grignard reagents are very reactive. In the presence of moisture, they react to give alkanes. Therefore, Grignard reagents should be prepared under anhydrous conditions. (b) When H2O attacks the 20 alkyl halide C6H5CHClCH3, the carbocation thus formed has resonance and hyper-conjugation to stabilize it. In C6H5CH2Cl, only resonance is present. Hence, C6H5CHClCH3 becomes more stable than C6H5CH2Cl so it is hydrolysed
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Answer:
Grignard reagent should be prepared under anhydrous conditions, because it is very reactive. It reacts very quickly with any source of proton to give hydrocarbon. It reacts with water very quickly. Therefore, it is necessary to avoid moisture from the Grignard reagents.
hope it helps you follow
(b) When H2O
attacks the 20
alkyl halide C6H5CHClCH3, the carbocation thus formed has resonance and hyper-conjugation to stabilize it.
In C6H5CH2Cl, only resonance is present.
Hence, C6H5CHClCH3
becomes more stable than C6H5CH2Cl
so it is hydrolysed
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