2749-96-4

Basic information

• Product Name: Benzene, 1-methyl-4-(1,2-propadienyl)-
• CAS NO: 2749-96-4
• Molecular Formula: C10H10
• Molecular Weight: 130.189
• Mol File: 2749-96-4.mol
• Article Data: 31

Chemical Properties

• CAS DataBase Reference: Benzene, 1-methyl-4-(1,2-propadienyl)-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzene, 1-methyl-4-(1,2-propadienyl)-(2749-96-4)
• EPA Substance Registry System: Benzene, 1-methyl-4-(1,2-propadienyl)-(2749-96-4)

Safety Data

• Hazardous Substances Data: 2749-96-4(Hazardous Substances Data)

Upstream product

• 90504-41-9 Triphenyl-(3-p-tolyl-prop-2-ynylidene)-λ⁵-phosphane 
• 132589-36-7 1-(4-methylphenyl)prop-2-yn-1-ol 
• 622-97-9 1-ethenyl-4-methylbenzene 
• 75-25-2 Bromoform 
• 17343-75-8 1-(2,2-dibromocyclopropyl)-4-methylbenzene 
• 925-90-6 ethylmagnesium bromide 
• 50-00-0 formaldehyd 
• 766-97-2 4-n-methylphenylacetylene 
• 104-87-0 4-methyl-benzaldehyde 
• 2227-58-9 3-(4-methylphenyl)prop-2-ynoic acid 
• 30342-96-2 1-methyl-4-(prop-2-yn-1-yl)benzene 
• 106-38-7 para-bromotoluene 
• 112176-19-9 triisopropoxy(4-methylphenyl)titanium 
• 106-96-7 propargyl bromide 

Downstream Products

• 25570-66-5 2-[3-(4-methylphenyl)-allyl]malonic acid diethyl ester 
• 22688-04-6 (E)-1-(3-methoxyprop-1-en-1-yl)-4-methylbenzene 
• 1041865-58-0 (E)-1-methyl-4-(3-(1-phenylethoxy)prop-1-enyl)benzene 
• 1041865-61-5 (E)-2-(3-p-tolylallyloxy)ethanol 
• 1041865-62-6 1,2-bis((E)-3-p-tolylallyloxy)ethane 
• 1041865-59-1 (E)-1-(3-(allyloxy)prop-1-enyl)-4-methylbenzene 
• 1041865-51-3 (E)-1-(3-isopropoxyprop-1-enyl)-4-methylbenzene 
• 1041865-55-7 (E)-1-(3-(cyclohexyloxy)prop-1-enyl)-4-methylbenzene 
• 1041865-54-6 (E)-1-(3-butoxyprop-1-en-1-yl)-4-methylbenzene 
• 1039513-15-9 (E)-3-(4-methylbenzyl)-4-(4-methylbenzylidene)cyclopent-2-enone 
• 1039513-19-3 (E)-3-(4-methylbenzyl)-5-(4-methylbenzylidene)cyclopent-2-enone 
• 55440-99-8 3-Methoxy-1-p-tolyl-propen-⁽¹⁾ 

Relevant articles and documents

Preparation of (E)-1,3-Enyne Derivatives through Palladium Catalyzed Hydroalkynylation of Allenes

A general and efficient palladium catalyzed hydroalkynylation of allenes was developed to produce synthetically versatile (E)-1,3-enyne derivatives with high regio- and stereoselectivity. This catalytic system proceeded under mild conditions and was compatible with a broad range of substrates, especially for allenes without electron-bias groups. This work further broadens the synthetic potential of these scaffolds in organic synthesis and medicinal chemistry.

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.

Copper(ii)-catalyzed protoboration of allenes in aqueous media and open air

A method has been developed for the facile Cu(ii)-catalyzed protoboration of monosubstituted allenes in aqueous media under atmospheric conditions. The reaction occurs site selectively, favoring internal alkene protoboration to afford 1,1-disubstituted vinylboronic acid derivatives (up to 93?:?7) with modest to good yields. The method has been applied to a variety of phenylallene derivatives as well as alkyl-substituted allenes. This journal is