Access to 3‐Methyl‐4‐methylene‐
N
‐tosylpyrrolidine and 3,4‐Dimethyl
N
‐tosylpyrroline by Ruthenium‐Catalyzed Cascade Cycloisomerization/Isomerization Reactions
Access to 3‐Methyl‐4‐methylene‐
N
‐tosylpyrrolidine and 3,4‐Dimethyl
N
‐tosylpyrroline by Ruthenium‐Catalyzed Cascade Cycloisomerization/Isomerization Reactions