In the title compound, C18H26BrNO, the dihydroindolone unit is slightly twisted. The n-decyl chains are fully extended and intercalate to form hydrophobic regions. The polar head groups are associated through C-H center dot center dot center dot O hydrogen bonds and C-Br center dot center dot center dot pi(ring) interactions. Graphic In this study, we efficiently synthesized 5-bromo-1-decylindolin-2-one without isolation of the intermediate hydrazone by the Wolff-Kishner reduction of 2-(5-bromo-1-decyl-2-oxo-2,3-dihydro-1H-indol-3-ylidene)propanedinitrile with hydrazine hydrate.
