N-Sulfinylaniline
# N-Sulfinylaniline

N-Sulfinylaniline is the organosulfur compound with the formula $C_6H_5NSO.$ It is a straw-colored liquid. N-Sulfinylaniline is an example of a sulfinylamine. It is a dienophile and a ligand in organometallic chemistry.

## Synthesis and structure

It is prepared by treating aniline with thionyl chloride:

    3 $PhNH_2$ + $SOCl_2$ → PhNSO + 2 $[PhNH_3]Cl$

X-ray crystallographic analysis confirms that N-sulfinylaniline is structurally related to sulfur dioxide as well as sulfur diimide. The C–S=N=O dihedral angle is –1.60°,

