200341-09-9

Basic information

• Product Name: Benzene, 1-(1-methylethyl)-4-(1,2-propadienyl)- (9CI)
• Synonyms: Benzene, 1-(1-methylethyl)-4-(1,2-propadienyl)- (9CI)
• CAS NO: 200341-09-9
• Molecular Formula: C12H14
• Molecular Weight: 158.23956
• Product Categories: ISOPROPYL
• Mol File: 200341-09-9.mol

Chemical Properties

• Appearance: /
• CAS DataBase Reference: Benzene, 1-(1-methylethyl)-4-(1,2-propadienyl)- (9CI)(CAS DataBase Reference)
• NIST Chemistry Reference: Benzene, 1-(1-methylethyl)-4-(1,2-propadienyl)- (9CI)(200341-09-9)
• EPA Substance Registry System: Benzene, 1-(1-methylethyl)-4-(1,2-propadienyl)- (9CI)(200341-09-9)

Safety Data

• Hazardous Substances Data: 200341-09-9(Hazardous Substances Data)

Upstream product

• 18620-03-6 4-isopropylphenylmagnesium bromide 
• 106-96-7 propargyl bromide 
• 925-90-6 ethylmagnesium bromide 
• 2055-40-5 4-isopropylstyrene 
• 122-03-2 (4-isopropylbenzaldehyde) 

Relevant articles and documents

Indene formation upon borane-induced cyclization of arylallenes, 1,1-carboboration, and retro-hydroboration

We herein report the reaction of arylallenes with tris(pentafluorophenyl)borane that yields pentafluorophenyl substituted indenes. The tris(pentafluorophenyl)borane induces the cyclization of the allene and transfers a pentafluorophenyl ring in the course of this reaction. A Hammett plot analysis and DFT computations indicate a 1,1-carboboration to be the C-C bond-forming step.

Conversion of alkyl- and arylallenes into 1-alkynes through metallated intermediates

A number of acetylenes RCH2C≡CH have been obtained by metallation of the allenes RCH=C=CH2 or mixtures of acetylenes and allenes with n-BuLi in THF-hexane and hydrolysis after allowing the metallated allenes to rearrange at roam temperature or by heating under reflux.