4544-28-9

Basic information

• Product Name: Benzene, (1-Methyl-2-propyn-1-yl)-
• Synonyms: Benzene, (1-Methyl-2-propyn-1-yl)-;But-3-yn-2-ylbenzene
• CAS NO: 4544-28-9
• Molecular Formula: C₁₀H₁₀
• Molecular Weight: 130.1864
• Mol File: 4544-28-9.mol
• Article Data: 13

Chemical Properties

• Boiling Point: 160.8±9.0 °C(Predicted)
• Appearance: /
• Density: 0.931±0.06 g/cm3(Predicted)
• CAS DataBase Reference: Benzene, (1-Methyl-2-propyn-1-yl)-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzene, (1-Methyl-2-propyn-1-yl)-(4544-28-9)
• EPA Substance Registry System: Benzene, (1-Methyl-2-propyn-1-yl)-(4544-28-9)

Safety Data

• Hazardous Substances Data: 4544-28-9(Hazardous Substances Data)

Upstream product

• 34713-70-7 2-Phenylpropanal 
• 27491-70-9 dimethyl diazomethylphosphonate 
• 10575-78-7 1-brombuta-1,2-diene 
• 86738-26-3 (RS)-(E)-1-chloro-3-phenylbut-1-ene 
• 673-32-5 1-Phenylprop-1-yne 
• 74-83-9 methyl bromide 
• 80-18-2 Methyl benzenesulfonate 
• 4187-87-5 1-Phenyl-2-propyn-1-ol 
• 77295-70-6 (4,4-dibromobut-3-en-2-yl)benzene 
• 124-38-9 carbon dioxide 
• 67-56-1 methanol 
• 16169-88-3 1-phenylprop-2-ynyl acetate 
• 70372-58-6 2-bromo-2-fluoro-1-phenylcyclopropane 
• 917-54-4 methyllithium 

Downstream Products

• 86738-28-5 4-phenylpent-2-ynoic acid 
• 1235712-44-3 3,4-Dibutyl-1-methylquinolin-2(1H)-one 
• 22433-39-2 1-methyl-1-phenylallene 
• 2288-18-8 2-phenyl-1,3-butadiene 
• 1393481-78-1 1-(3-phenylbut-1-ynyl)-2-vinyloxynaphthalene 
• 28129-04-6 1-trimethylsilyl-3-phenyl-3-methylprop-1-yne 
• 90412-57-0 [η4-1,2-bis(trimethylsilyl)-3-(1-phenylethyl)cyclobutadiene](η5-methylcyclopentadienyl)cobalt 
• 90458-29-0 [η4-1,2-bis(trimethylsilyl)-3-(1-phenylethyl)cyclobutadiene](η5-methylcyclopentadienyl)cobalt 
• 78736-27-3 C₅H₅CoC₄HSi(CH₃)3Si(C₂H₅)3CHCH₃C₆H₅ 
• 78736-26-2 C₅H₅CoC₄HSi(CH₃)3Si(C₂H₅)3CHCH₃C₆H₅ 
• 78207-58-6 [η4-1,2-bis(trimethylsilyl)-3-(1-phenylethyl)cyclobutadiene](η5-cyclopentadienyl)cobalt 

Relevant articles and documents

Biarylphosphonite gold(I) complexes as superior catalysts for oxidative cyclization of propynyl arenes into indan-2-ones

Striking gold: A series of variously functionalized propynyl arenes was smoothly converted into indan-2-ones by a new gold(I)-catalyzed oxidative cyclization process. [LAu]NTf2 (Tf=trifluoromethanesulfonyl) is a superior catalyst both in terms of yield and kinetics for the present transformation. Copyright

One post stereoselective synthesis of chiral αω-diynes from bromoallenes and organobis(heterocuprates)

Organobis(heterocuprates), 7 and 8, have been prepared reacting in situ 1,4-dilithiobutane and di-Grignard reagents, obtained from 1,4-dibromobutane and 1,4-dibromobenzene, respectively, with CuSPh and LiCuBr2. The cross-coupling reaction of these di-cuprate reagents with 3-alkyl and 3,3-dialkyl 1-bromo-1,2-dienes (1) provides a general method for selective synthesis of 1,9-decadiynes (5) and 1,4-bis(2-propynyl)benzenes (6), characterized by two identical chiral centres in the α position to the triple bonds. The high 1,3-anti stereoselectivity of the coupling process allows us to obtain enantiomerically enriched α,ω-diynes 5 and 6 starting from optically active allenic substrates 1.

Nickel-catalysed electroreductive cleavage of propargyl compounds

The selective reduction of propargyl esters and aryl ethers, involving the cleavage of the propargyl-oxygen bond, affords the corresponding carboxylic acids and phenols in good yields. The reaction proceeds through electrosynthesis combined with the catalysis by Ni(II)-bipyridine complexes, under mild conditions.