Question

When the following reaction was carried out using "OH as the base, the products were 75 % A and 25 % B. When the t-Butoxide ion I(CH3)2CO was used as the base, 97 % of A was recovered and a trace amount of other products. Explain these results. (5 pts). CH, Hy vode CH, base CH3 HC ether, 55 °C HC HC Br B OH The hydroxide ion is a small, strong base and therefore is a good nucleophiles as well. The tertiary butoxide ion is a strong large base and therefore not a good nucleophiles. The answer to this question starts there. See question 3 below.

ignore "see question three below"

Answer 1

she hydroxide, oh i stenically less crowded base to abstract proton from a-position of havice and also acts as nucleophile due to less size of or in But t-Buó ion is a storically enowded base and abstracts proton thom x-position of halicle to bodm alkene. Due to the stanic Chowcling in to Bus its recko philicity decreases and can not produce substitution product