84473-75-6

Usage

InChI:InChI=1/C12H14O2/c1-2-6-11(7-3-1)10-12-13-8-4-5-9-14-12/h1-7,12H,8-10H2

Upstream product

• 141412-49-9 1,1-bis(2-butenoxy)-2-phenylethane 
• 151259-41-5 phenylacetaldehyde diallyl acetal 

Relevant academic research and scientific papers

High activity ruthenium or osmium metal carbene complexes for olefin metathesis reactions and synthesis thereof

A method of preparing a catalyst of the formula comprising:reacting a compound of the formula (XX1MLnL1m)p with a phosphorane of the formula wherein:M is Os or Ru;R and R1 are either the same or different and are(a) hydrogen,(b) a group selected from C2-C20 alkenyl, C2-C20 alkynyl, C1-C20 alkyl, aryl, C1-C20 carboxylate, C2-C20 alkoxy, C2-C20 alkenyloxy, C2-C20 alkynyloxy, aryloxy, C2-C20 alkoxycarbonyl, C1-C20 alkylthio, C1-C20 alkylsulfonyl, or C1-C20 alkylsulfinyl, or(c) one of the groups listed in (b) substituted with C1-C5 alkyl, halogen, C1-C5 alkoxy, unsubstituted phenyl, halogen substituted phenyl, C1-C5 alkyl substituted phenyl, or C1-C5 alkoxy substituted phenyl;R4, R5, and R6 are either the same or different and are each unsubstituted or substituted hydrocarbon wherein the hydrocarbon is selected from the group consisting of aryl, C1-C6 alkyl, C1-C6 alkoxy, and phenoxy and the hydrocarbon substitution is selected from the group consisting of halogen, C1-C3 alkyl, C1-C3 alkoxy, unsubstituted phenyl, halogen substituted phenyl, C1-C5 alkyl substituted phenyl, and C1-C5 alkoxy substituted phenyl;X and X1 are either the same or different and are any anionic ligand;L is any neutral electron donor;L1 is a trialkylphosphine ligand where at least one of the alkyl groups is a secondary alkyl or a cycloalkyl;n and m are independently 0-4, provided n+m=2, 3 or 4; andp is an integer equal to or greater than 1.

Cationic ruthenium allenylidene complexes as catalysts for ring closing olefin metathesis

A series of well accessible cationic ruthenium allenylidene complexes of the general type [(η6-arene)(R3P)RuCl(=C=C=CR′2)] + X- is described which constitute a new class of pre-catalysts for ring closing olefin metathesis reactions (RCM) and provide an unprecedented example for the involvement of metal allenylidenes in catalysis. They effect the cyclization of various functionalized dienes and enynes with good to excellent yields and show a great tolerance towards an array of functional groups. Systematic variations of their basic structural motif have provided insights into the essential parameters responsible for catalytic activity which can be enhanced further by addition of Lewis or Bronsted acids, by irradiation with UV light, or by the adequate choice of the "non-coordinating" counterion X-. The latter turned out to play a particularly important role in determining the rate and selectivity of the reaction. A similarly pronounced influence is exerted by remote substituents on the allenylidene residue which indicates that this ligand (or a ligand derived thereof) may remain attached to the metal throughout the catalytic process. X-ray crystal structures of the catalytically active allenylidene complexes 3b · PF6 and 15 · OTf as well as of the chelate complex 10 required for the preparation of the latter catalyst are reported.