Question

52.Which are the characteristics and factors that reactions? SN1: 3'alcehels,a altehels E3: laus factors that influence SN2, SN1, E2, E1, and ElcB s should be the major product and machanism of he reaction bertween a secondary alyl halide and an alkoxide? ow can one determine whether an alkyl halide wil roduce a single alkene upon elimination with strong base? tween a tertiary alkyl halide and water? 55.What is the mechanism of the reaction be 56. What change could be made to the conditions of a nuceleophilic substitution reaction to increase the rate of SN2 but not SN1 for the reaction between a secondary alkyl halide & a non- basic nucleophile? conterradin o nuelesphile 57.How can one determine the structure of the major product of an acid-catalyzed alcohol dehydration Reaction? 58.How can one distinguish between 1,29, and 3° alcohols? 59. What is the product of the reaction between an alkene and a peroxyacid? 60.What reagent(s) are needed to perform oxidative cleavage of alkenes? 61.Which reagents would you use to accomplish the following transformation of a primary alcohol to an aldehyde? weat ondin reneat (Rce) 62 What type of compound results when a tertiary (3) alcohol is treated with CrO3 in acid? no reachorn

Answer 1

1. Sn2 reactions are affected by stereochemical hindrance that is the nucleophile rich centre should attack the electrophile from backside.

presence of polar and solvent increases the rate and ease of Sn2 reaction as solvent also have electron density which affects the Sn2 mechanism

Sn1 reactions polar and solvent increases the ease and rate of reaction

2. This reaction mechanism is by Sn2 mechanism and process is called William son synthesis where major product is ether and minor is secondary alkyl halide.

3.The presence of reagent and structure of alkyl halide determines the alkene formation.

4.they follow Sn1 reaction mechanism

5.Temperature of the reaction determines the major product formed if not sufficient temperature supplied then there is formation of ether.

6.the hydroxyl group being attached to the carbon atom.

7. and epoxy alkane is formed,