0

Guest

Courses New

Give reactions to convert: i) Ethene to Propyne ii) Ethyne to Propanol

Give reactions to convert:
i) Ethene to Propyne
ii) Ethyne to Propanol

Grade:10

1 Answers

dfdffdfddffd
41 Points
9 years ago
 
  • A.S. answered 2 years ago
  •  
i)ethene is CH2=CH2.. 

CH2=CH2 + Br2/CCl4 ----------> CH2(Br)-CH2(Br) ( ethylene dibromide) 

CH2(Br)-CH2(Br) + KOH (alc.) + heat ------------> CH=-CH (acetylene) 

=- is triple bond 

CH=-CH + NaNH2 in liq.NH3 -------> CH=-CNa (sodium acetylide) 

CH=-CNa + CH3I ----------> CH=-C-CH3 (propyne) 


ii) first make propyne from ethyne like above ....after that ... 

CH=-C-CH3 + H2/Pd / CaCO3 + S ----------> CH2=CH-CH3 ( propene) 

H2/Pd / CaCO3 + S is lindlars catalyst ... 

CH2=CH-CH3 + (BH3)2 + H2O2 /OH- --------> CH2(OH)-CH2-CH3 (propanol) 

this step is hydroboration-oxidation of alkenes ... 

feel free to ask any question

Think You Can Provide A Better Answer ?

Other Related Questions on Organic Chemistry

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More