Fig. 5
Deuterium-labelling studies. a Treatment of allene 1a with deuterated Hantzsch ester 5b afforded deuteration in the allylic position. b Analogous experiment with 5c gave deuteration in the vinylic position
Fig. 5 | Nature Communications
Deuterium-labelling studies. a Treatment of allene 1a with deuterated Hantzsch ester 5b afforded deuteration in the allylic position. b Analogous experiment with 5c gave deuteration in the vinylic position
