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ChemicalBook CAS DataBase List Grubbs catalyst 2nd generation
246047-72-3

Grubbs catalyst 2nd generation synthesis

2synthesis methods
Grubbs and co-workers reported a direct approach towards the preparation of the 4,5-dihydroimidazol-2-ylidene-substituted ruthenium-based catalysts. Compared to their predecessor, Grubbs catalyst 2nd generation display higher reactivity, better stability, and improved functional group tolerance.[3]
synthesis of Grubbs catalyst 2nd generation
-

Yield:-

Steps:

Multi-step reaction with 4 steps
1: isopropyl alcohol; water / 24 h / 0 - 20 °C
2: sodium tetrahydroborate; hydrogenchloride / water; tetrahydrofuran / 0 - 20 °C
3: formic acid / 5 h / 120 °C / Inert atmosphere
4: potassium tert-butylate / hexane / 24 h / 60 °C / Schlenk technique

References:

US9403854,2016,B2

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