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कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Predict all the alkenes that would be formed by dehydrohalogenation of the following halide with sodium ethoxide in ethanol and identify the major alkene: 2, 2, 3-Trimethyl-3-bromopentane - Chemistry

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प्रश्न

Predict all the alkenes that would be formed by dehydrohalogenation of the following halide with sodium ethoxide in ethanol and identify the major alkene:

2, 2, 3-Trimethyl-3-bromopentane

रासायनिक समीकरणे/रचना
लघु उत्तर

उत्तर

There are two different types of β-hydrogen atoms present in the halide. Hence, in the dehydrohalogenation reaction, it will form two alkenes: 3, 4, 4-trimethylpent-2-ene and 2-ethyl-3, 3-dimethylbut-1-ene. The first alkene is more stable because it is more substituted (according to Saytzeff rule). Hence, it is the major product.

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पाठ 10: Haloalkanes and Haloarenes - Exercises [पृष्ठ ३११]

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एनसीईआरटी Chemistry [English] Class 12
पाठ 10 Haloalkanes and Haloarenes
Exercises | Q 10.3 | पृष्ठ ३११
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