Question
Find the unknown reactants, products or reagents (20 points) 4. HCN LIAIH4 HBг C (i) C2H2 в Hydrogenation В Aq. KOH...
Find the unknown reactants, products or reagents (20 points) 4. HCN LIAIH4 HBг C (i) C2H2 в Hydrogenation В Aq. KOH HX 2-Propanol Н20 (ii) HCN LIAIH4 Cyclohex-1/4-diene В C (iv) Cl2 aq.Кон P205 Dichloroethane B с A (v) Hydrolysis A C2H5MgCl Н20 PC13 2-Chlorobutane B Bromocyclohexane (vi) Cyclohexyne Cyclohexene Cyclohexylcyclohexane 2-Hydroxyethnitrile 2-aminoethanol (vii) Methanal i. PBR5 ii. Na/Ether (viii) 2-propanol iii. C12/light
Answers
ANSWER 4 (i) 7 Br H-Br -- H —— —— —— —— CH2 H bromoethene CH3Br (A) Markovnikoff's H-CN addition Br Br. LiAlH4 CN Han NC CH3 H2N X H CH3 2-bromopropan-1-amine } Reduction of cyano to amine 2-bromopropanenitrile C2H4BIN CzH BIN (C) (B) ANSWER 4 (ii) HX HCC -CH prop-1-yne 一 Hydrogenaton H/Lindlar catalyst prop-1-ene 是 X- AqKOH | HO Substitution reaction propan-2-ol < Markovnikoff's addition (A) (B)
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