81651-71-0

Upstream product

• 100-42-5 styrene 
• 557-91-5 1,1-Dibromoethane 
• 3234-51-3 1,1-dibromo-2-phenylcyclopropane 
• 74-88-4 methyl iodide 
• 917-54-4 methyllithium 

Downstream Products

• 57051-05-5 2-Methoxymethyl-1-phenyl-propen-⁽¹⁾ 
• 142024-56-4 3-methoxy-2-methyl-3-phenyl-1-propene 
• 29817-09-2 1-methylene-2-phenylcyclopropane 
• 65693-16-5 (2E)-2-methyl-3-phenylallyl acetate 
• 1417163-71-3 ethyl 6-bromo-2-methylene-4-phenyl-6-heptenoate 
• 71558-45-7 1-Chlor-1-methyl-2-phenylcyclopropan 
• 3145-76-4 (2-methylcyclopropyl)benzene 

Relevant academic research and scientific papers

4-Phenylspiro[2.2]pentane-1,1-dicarboxylate: synthesis and reactions with EtAlCl2 and 4,5-diazaspiro[2.4]hept-4-ene derivative

Cyclopropanation of 1-methylidene-2-phenylcyclopropane with dimethyl diazomalonate affords new dimethyl 4-phenyl-spiro[2.2]pentane-1,1-dicarboxylate. On contact with EtAlCl2, this compound undergoes opening of both cyclopropane rings to give dimethyl (2-chloromethyl-3-phenylallyl)malonate. Its EtAlCl2-assisted reaction with methyl 5′-methylspiro[cyclo-propane-1,3′-pyrazoline]-5′-carboxylate proceeds as the 1,3:1′,5′-addition to afford mainly 3-(2-chloroethyl)-1-cyclo-propylmethyl-1H-pyrazoline derivative.

Bromine radical-mediated sequential radical rearrangement and addition reaction of alkylidenecyclopropanes

Bromine radical-mediated cyclopropylcarbinyl-homoallyl rearrangement of alkylidenecyclopropanes was effectively accomplished by C-C bond formation with allylic bromides, which led to the syntheses of 2-bromo-1,6-dienes. A three-component coupling reaction

Pd-catalyzed ring-opening copolymerization of 2-aryl-1-methylenecyclopropanes with CO to afford polyketones via alternating insertion of the two monomers and C - C bond activation of the three-membered ring

Pd-bpy complexes catalyze the ring-opening copolymerization of 2-aryl-1-methylenecyclopropanes with CO, affording the new polyketones composed of ring-opened structural units only. Kinetic and isotope-labeling studies revealed the mechanism of the reactio

Ni-complex-catalysed addition polymerisation of 2-phenyl-1-methylenecylopropane to afford a polymer with cyclopropylidene groups

π-Allyl-nickel complexes initiated addition polymerisation of 2-phenyl-1-methylenecyclopropane to give a polymer with three-membered rings; the formed polymer showed a high Tg and negligible thermal decomposition up to 300°C.