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Stereoselective synthesis of functionalized pyrrolidines by the diverted NH insertion reaction of metallocarbenes with β aminoketone derivatives

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Figure

Figure 1. Some naturally occurring pyrrolidines.
Table 1. Catalyst screening for the preparation of N-aryl pyrrolidine 3a.
Figure 2. X-Ray crystal structures of pyrrolidines 5a, 5k and 9.

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