Pictet-Spengler · Amine + Aldehyde → Alkaloid Ring
unseel.com · β-arylethylamine + RCHO → tetrahydroisoquinoline
Stage reactants
New bonds 0
Step reactants assembled
Aromatic ring (electron-rich)
Amine nitrogen
Aldehyde carbon (R-CHO)
Oxygen / leaving water
New C-C bond
Unseel.com · Pictet-Spengler