Question

1) When 3-iodo-3-ethylpentane is treated with sodium methoxide in methanol, the major organic product is an ___that is generated through an __mechanism. A) ether, Sw1 B) ether, SN2 C) ether, E1 D) alkene, E2 E) alkene, E1 2) Which compound produces only one alkene when treated with sodium methoxide? A) 2-chloro-2-methylpentane B) 3-chloro-3-ethylpentane C) 3-chloro-2-methylpentane D) 2-chloro-4-methylpentane E) 2-chloro-3-ethylpentane 3) What is the difference between Hoffmann and Zaitsev? When is Hoffmann favored?

Answer 1

1) D option is correct { alkene, E2}

2) B option is correct {3-chloro-2-methylpentane}

3) i explain detailly with proper example plz go through with attached paper

hope you will easily understand.

Difference between Hoffmann and Zaitsev ? when is Hoffmann fauored? Basically Hoffmann rule is used to predict regioselectivity of Eelimination reactions occusing via El CB mechanism , the major product is the eless stable allcene de the alkene which is substituted with less double bonds, and when a small, unhindered base is used for E2 eliminantion the Z aitsew product is favoured over less substituted alkene be Hofmann product El Elimination - Hofmann product E2 Elimination - Zaitsev product The Hoffmann product is typically favoured when using bulky bases >Ils Naott EtOH DN - Zaitsev Zather (0%) - Hofmen (1984)