Base induced dehydrogenation of 1-Bromo-1, 2-diphenyl propane follows
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12th
Chemistry
Haloalkanes and Haloarenes
Reactions of Haloalkanes
Predict all the alkenes tha...
CHEMISTRY
Predict all the alkenes that would be formed by dehydrohalogenation of the following halides with sodium ethoxide in ethanol and identify the major alkene:
(i) 1-Bromo-1-methylcyclohexane
(ii) 2-Chloro-2-methylbutane
(iii) 2,2,3-Trimethyl-3-bromopentane.
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The reactions are given above:
(i) 1-methylcyclohexene is the major product.
Only one alkene is formed at beta H atoms on either side of Br atoms are equivalent.
(ii) 2-methyl-2-butene is the major product.
Two different alkenes are formed. More substituted alkene is the major product as it is more stable. This is in accordance with Saytzeff's rule.
(iii) 3,4,4-Trimethylpent-2-ene is the major product.
Two different alkenes are formed. More substituted alkene is the major product as it is more stable. This is in accordance with Saytzeff's rule.
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