Question

18.. Based on selectivity factors, one can calculate the ratio of products expected from a monohalogenation reaction. For the monochlorination reaction below, calculate the expected percent yields given that 30 hydrogens are 5 times more reactive than 1° hydrogens toward abstraction by chlorine atoms and 2° hydrogens are 3.8 times more reactive than 1° hydrogens toward abstraction by chlorine atoms at room temperature. CI Cl2 hv 1.12 CI HO

Answer 1

CH3 CH2 CH Cha CH₂ hr СА СИ, СТ. + sy CH2 - CH2 CH2 CM (8) ca ce ON 14, CH. + CH2 - CH2 (A) - amount of CA) a 3x16 reactivity - No of i Hydrogen amount of (B) a 1x zi8c reactivity Naf 3° hydrogen amount of (o) a 4x 3.8a reactivity vooof 2² Hydrogen. % of A = 12.93 % 9 3 x 100/= 3+st 15.2 Answer. x 100 %. = 21:55 % 3+ 5+15.2 % of c= x 100% - 65.52 % 4x3.8 3+ 5 * 15.2