72012-43-2

Basic information

• Product Name: r-1-(ethoxycarbonyl)-1-butyl-t-2-phenylcyclopropane
• CAS NO: 72012-43-2
• Molecular Weight: 246.349
• Mol File: 72012-43-2.mol

Chemical Properties

• CAS DataBase Reference: r-1-(ethoxycarbonyl)-1-butyl-t-2-phenylcyclopropane(CAS DataBase Reference)
• NIST Chemistry Reference: r-1-(ethoxycarbonyl)-1-butyl-t-2-phenylcyclopropane(72012-43-2)
• EPA Substance Registry System: r-1-(ethoxycarbonyl)-1-butyl-t-2-phenylcyclopropane(72012-43-2)

Safety Data

• Hazardous Substances Data: 72012-43-2(Hazardous Substances Data)

Upstream product

• 109-72-8 n-butyllithium 
• 3234-51-3 1,1-dibromo-2-phenylcyclopropane 
• 541-41-3 chloroformic acid ethyl ester 
• 100-42-5 styrene 
• 849945-08-0 ethyl 2-diazohexanoate 
• 1323846-83-8 (R)-(2,4-dimethyl-3-pentyl) 2-phenyl-1-butylcycloprop-2-ene-1-carboxylate 
• 1323846-48-5 2,4-dimethyl-3-pentyl 2-diazohexanoate 
• 1323846-32-7 2,4-dimethyl-3-pentyl 2-acetylhexanoate 
• 64-17-5 ethanol 
• 1323846-85-0 C₁₄H₁₈O₂ 
• 1323846-84-9 (1R,2S)-(1-butyl-2-phenylcyclopropyl)methanol 

Relevant articles and documents

Highly enantioselective cyclopropenation reaction of 1-alkynes with α-alkyl-α-diazoesters catalyzed by dirhodium(II) carboxylates

Two rhodium(II) ions work together: [Rh2(S-tbpttl)4] is an exceptionally effective catalyst for enantioselective cyclopropenation reactions of 1-alkynes with α-alkyl-α-diazoacetates (see scheme). Cyclopropenation is preferred over alkene formation through a 1,2-hydride shift. Copyright

Rh-catalyzed intermolecular cyclopropanation with α-alkyl-α- diazoesters: Catalyst-dependent chemo- and diastereoselectivity

(Chemical Equation Presented) A Rh-catalyzed procedure for the cyclopropanation of alkenes with α-alkyl-α-diazoesters is described. With dirhodium tetraoctanoate, the predominant pathway is β-hydride elimination. While a number of sterically demanding carboxylate ligands serve to avoid β-hydride elimination, it was found that triphenylacetate (TPA) also imparts high diastereoselectivity.

Stereoselective Carbon-Carbon Bond-Forming Reaction of 1,1-Dibromocyclopropanes via 1-Halocyclopropylzincates

Lithium trialkylzincates react efficiently with 1,1-dibromocyclopropanes 5 to give the corresponding alkylation products 7 nonstereoselectively.The reaction proceeds through a 1,2-alkyl migration of the intermediately formed zincate carbenoid 3 in an inve

Stereoselective synthesis of gem-disubstituted cyclopropanes from gem-dibromocyclopropanes

The title reaction is realized by utilizing an intramolecular alkylation reaction of zincate carbenoids followed by a Pd (0)-catalyzed coupling reaction with acyl, aryl, and alkenyl halides.