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Activating Catalysts with Mechanical Force. 1a : 3 mM , 6 o C , 60 min, conversion : 65 % (sonication) 1a : 3 mM , 6 o C 60 min, conversion : 3 % (without sonication) 1a : 0.6 mM , 95 o C , 45 min, conversion : 28%. Room temperature : no reaction 80 o C , 60 min, conversion : 94%.
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1a : 3 mM , 6 oC , 60 min, conversion : 65 % (sonication) 1a : 3 mM , 6 oC60 min, conversion : 3 % (without sonication) 1a : 0.6 mM , 95 oC ,45 min, conversion : 28%
Room temperature : no reaction 80 oC ,60 min, conversion : 94%
6a : 1 mM , 20 oC , 60 min, conversion : 14% 6b : 1 mM , 20 oC 60 min, conversion : 36% 7 : 1 mM , 20 oC , 150 min, conversion <1%
1 mM 6b solution (sonication) + 10 mM of PCy3 + 100 mM of DEDAM
1 mM 6c 20 oC (sonication) conversion : 90% 1 mM 6c 20 oC (no sonication) conversion : 2%