62937-87-5

Upstream product

• 62937-85-3 1-Methyl-2,3-diphenyl-3-vinylcyclopropen 
• 26029-34-5 2-methyl-3-phenyl-2-cyclopentenone 
• 591-51-5 phenyllithium 
• 17113-33-6 2-phenylfuran 
• 72612-89-6 3-methyl-1,2-diphenylcyclopropenylium perchlorate 
• 110456-81-0 trans-4-phenyl-5-methyl-2-cyclopentenone 
• 23535-17-3 (±)-4-hydroxy-2-methylcyclopent-2-en-1-one 
• 98-01-1 furfural 
• 4208-64-4 1-(2-furyl)ethanol 
• 253284-33-2 (Z)-3-iodo-2-methyl-3-phenylprop-2-en-1-ol 
• 946494-16-2 2-methyl-3-phenyl-5-trimethylsilanylpent-2-en-4-yn-1-ol 
• 864758-78-1 (Z)-(1-ethynyl-2-methyl-3-phenylprop-1-ene)benzene 

Downstream Products

• 70913-10-9 2,4-diphenyl-3-methylbenzonorbornadiene 
• 70913-10-9 1,4-dihydro-2-methyl-1,3-diphenyl-1,4-methanonaphthalene 

Relevant academic research and scientific papers

Ruthenium-catalyzed cycloisomerization of cis-3-en-1-ynes to cyclopentadiene and related derivatives through a 1,5-sigmatropic hydrogen shift of ruthenium vinylidene intermediates

We report a new ruthenium-catalyzed cycloisomerization of unactivated cis-3-en-1-ynes, which produces substituted cyclopentadiene and related derivatives. The mechanism of this cyclization is proposed to involve a [1,5]-sigmatropic hydrogen shift of ruthenium-vinylidene intermediates on the basis of deuterium-labeling experiments. Copyright

Regioselective synthesis of trisubstituted cyclopentadienyl ligands from furans

1,2,3- And 1,2,4-trisubstituted cyclopentadienyl manganese tricarbonyl compounds have been synthesized regioselectively from furans following a common synthetic strategy. The key steps include the transformation of furylcarbinols into hydroxycyclopentenones followed by the conjugate addition of Grignard reagents under chelation directed conditions. This affords hydroxycyclopentanones which can be dehydrated to cyclopentenones. These compounds are further elaborated into the final targets by the 1,2-addition of organolithium reagents.