Wittig Rxn

Question 1

purpose

Answer 1

turns a carbonyl C=O into a C=C

Question 2

process

Answer 2

form yllide by reacting Ph3P with an alkyl halide

use n-BuLi as second step

react with carbonyl

Question 3

alkyl halide restrictions

Answer 3

CH3, 1º, 2º slow

Question 4

F.G compatibility in carbonyl

Answer 4

alkane, alkene, internal alkyne, cycloalkane, aromatic, ether, ester, halogens

Question 5

F.G incompatibility in carbonyl

Answer 5

acidic protons (ROH, carbox. acid)