:protection of the acidic hydrogen of acetylene
:Chichibabin (NaNH2)
: LiCl,Na2CO3,DMF,100'c or CuI,DMF,80'C (1,2)
:deprotection
if you have chosen the starting material yourself I reccomend changing it else you need to protect/deprotect the acidic hydrogen of acetylene
ref:
two methods for the synthesis azaindoles
1)Tetrahedron Lett., 1998,39,5355
2)Tetrahedron Lett., 1998,39,5159