Abstract
[γ‐2H2]Estragole was synthesized via vinylation of 4‐ methoxy‐ [methylene‐2H2]‐benzyl chloride; [β‐2H]estragole via reduction of 3‐(p‐anisyl)‐propyne with bis‐3‐methyl‐2‐butylborane (obtained from LiAl2H4, BF3 etherate and 2‐methyl‐2‐butene) [α‐2H]estragole via reduction of the tosylhydrazone of 4‐methoxy‐[formyl‐2H]‐cinnamaldehyde with NaBH3CN.