Starting with acetylene as your only source of carbon atoms, identify how you would prepare the following aldehyde:
CH3CH2CHO
Part 1: This transformation can be performed with some reagent or combination of the reagents listed below. Give the necessary reagent(s) in the correct order, as a string of letters (without spaces or punctuation - such as EBF). If there is more than one correct solution, provide just one answer.
A
1) O3; 2) DMS
B
1) R2BH; 2) H2O2, NaOH
C
NaNH2
D
H2, Lindlar's cat.
E
t-BuOK
F
H2, Pt
G
MeONa
H
H2SO4, H2O, HgSO4
I
CH3CH2Br