71345-82-9

Basic information

• Product Name: Benzene, 1-methyl-2-(1,2-propadienyl)-
• CAS NO: 71345-82-9
• Molecular Formula: C10H10
• Molecular Weight: 130.189
• Mol File: 71345-82-9.mol
• Article Data: 15

Chemical Properties

• CAS DataBase Reference: Benzene, 1-methyl-2-(1,2-propadienyl)-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzene, 1-methyl-2-(1,2-propadienyl)-(71345-82-9)
• EPA Substance Registry System: Benzene, 1-methyl-2-(1,2-propadienyl)-(71345-82-9)

Safety Data

• Hazardous Substances Data: 71345-82-9(Hazardous Substances Data)

Upstream product

• 37982-72-2 3-(2-tolyl)-1-propyne 
• 95-46-5 2-methylphenyl bromide 
• 676270-02-3 o-tolyltris(2-propoxy)titanium 
• 106-96-7 propargyl bromide 
• 932-31-0 ortho-tolylmagnesium bromide 
• 132608-14-1 1-(2,2-dibromocyclopropyl)-2-methylbenzene 
• 611-15-4 1-methyl-2-vinyl-benzene 
• 529-20-4 2-methylphenyl aldehyde 
• 139416-71-0 1-(o-tolyl)prop-2-yn-1-ol 
• 615-37-2 ortho-methylphenyl iodide 
• 53915-69-8 allenyltributylstannane 

Downstream Products

• 1008-05-5 1-(3,3-difluoroprop-1-en-2-yl)-2-methylbenzene 
• 1644189-05-8 N¹,N¹,N³,N³-tetrabenzyl-2-(2-methylbenzylidene)propane-1,3-diamine 
• 1294009-12-3 4,4,5,5-tetramethyl-2-(3-(o-tolyl)prop-1-en-2-yl)-1,3,2-dioxaborolane 
• 1426250-34-1 (Z)-4,4,5,5-tetramethyl-2-(1-(o-tolyl)prop-1-en-2-yl)-1,3,2-dioxaborolane 
• 502431-15-4 CH₃C₆H₄CHC(Si(CH₃)3)(CH₂Sn(C₄H₉)3) 

Relevant articles and documents

Photoredox Catalyzed Sulfonylation of Multisubstituted Allenes with Ru(bpy)3Cl2 or Rhodamine B

A highly regio- and stereoselective sulfonylation of allenes was developed that provided direct access to α, β-substituted unsaturated sulfone. By means of visible-light photoredox catalysis, the free radicals produced by p-toluenesulfonic acid reacted with multisubstituted allenes to obtain Markovnikov-type vinyl sulfones with Ru(bpy)3Cl2 or Rhodamine B as photocatalyst. The yield of this reaction could reach up to 91%. A series of unsaturated sulfones would be used for further transformation to some valuable compounds.

Intermolecular Allene Functionalization by Silver-Nitrene Catalysis

Under silver catalysis conditions, using [Tp*,BrAg]2 as the catalyst precursor, allenes react with PhI═NTs in the first example of efficient metal-mediated intermolecular nitrene transfer to such substrates. The nature of the substituent at the allene seems crucial for the reaction outcome since arylallenes are converted into azetidine derivatives, whereas methylene aziridines are the products resulting from alkylallenes. Mechanistic studies allow proposing that azetidines are formed through unstable cyclopropylimine intermediates, which further incorporate a second nitrene group, both processes being silver-mediated. Methylene aziridines from alkylallenes derive from catalytic nitrene addition to the allene double bonds. Both routes have resulted to be productive for further synthetic transformations affording aminocyclopropanes.

A 1, 1 - disubstituted [...] compound synthesis method

The invention discloses a 1, 1 - disubstituted [...] compound synthesis method, the catalyst cuprous chloride, carbene precursor, the tertiary butyl alcohol potassium is added in the Schlenk reaction tube, vacuum, in an inert gas conditions, adding tetrahydrofuran, stir; then the [...][...], type I shown and methanol is dissolved in the tetrahydrofuran zincon after, in the Schlenk reaction tube of the instillment to states, for 25 °C stirring for 1 - 5 hours, the resulting reaction solution after treatment of formula II shown in 1, 1 - disubstituted [...] compound. Synthesis method of the invention has catalyst is cheap and easy to obtain and the low toxicity, high selectivity, environment friendly, mild reaction conditions, functional group universal good and simple operation and the like.