Chemical name:
(1,3-dimesitylimidazolidin-2-ylidene)diiodo(2-isopropoxy-5- nitrobenzylidene)ruthenium(II)
Product number:
AS2052
CAS number:
1874264-99-9
Patent number:
PCT/EP2003/011222
Very good for mRCM (macrocyclization) and small/medium ring formation. Very good for CM of terminal, type 1 olefins. Good for CM with substrates bearing unprotected alcohols. Less sensitive to impurities than nitro-Grela and nitro-Grela-SIPr.
Chemical formula: 
C31H37I2N3O3Ru
Molecular weight: 854.52 g/mol
Physical state: powder
Color: olive/brown
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High stability allows catalyst handling on air.
Long-term storage (>1 week): Store under inert gas in a cold place (recommended temp. 2 – 8 oC).
Short-term storage (<1 week): Store under inert gas at ambient temperature.