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General Procedure for Enyne Metathesis (8). Vacuum-dried resin 3 (800 mg, 0.86 meq, 1.0 eq) was swollen with degassed toluene (200 mL) for 10 min, then a stock solution of Grubbs¡¯ second-generation catalyst (0.1 M in degassed toluene, 5.1 mL, 0.51 mmol, 0.6 eq) was added via syringe and the mixture was stirred at 60 ¡ãC overnight. The resin was cooled, washed, and dried to afford vinylpyrrolines 8.

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