40811-05-0

Basic information

• Product Name: Benzene, 1-(1-bromo-2-methyl-1-propenyl)-4-methoxy-
• Synonyms: 1-(p-Methoxyphenyl)-2-methylpropen-1-yl-bromid;1-(1-bromo-2-methyl-propenyl)-4-methoxy-benzene;Benzene,1-(1-bromo-2-methyl-1-propenyl)-4-methoxy;1-Bromo-1-(4-methoxyphenyl)-2-methyl-1-propene;1-p-methoxyphenyl-2,2-dimethylvinyl bromide;1-bromo-1-(p-methoxyphenyl)-2-methyl-1-propene;1-Brom-1-(4-methoxyphenyl)-2-methyl-1-propen;1-(4-methoxyphenyl)-2-methylprop-1-enyl bromide
• CAS NO: 40811-05-0
• Molecular Formula: C11H13BrO
• Molecular Weight: 241.128
• Mol File: 40811-05-0.mol
• Article Data: 3

Chemical Properties

• Boiling Point: 296.7±23.0 °C(Predicted)
• Density: 1.287±0.06 g/cm3(Predicted)
• CAS DataBase Reference: Benzene, 1-(1-bromo-2-methyl-1-propenyl)-4-methoxy-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzene, 1-(1-bromo-2-methyl-1-propenyl)-4-methoxy-(40811-05-0)
• EPA Substance Registry System: Benzene, 1-(1-bromo-2-methyl-1-propenyl)-4-methoxy-(40811-05-0)

Safety Data

• Hazardous Substances Data: 40811-05-0(Hazardous Substances Data)

Upstream product

• 139710-95-5 1-(p-methoxyphenyl)-1,2-dibromo-2-methylpropane 
• 94-30-4 ethyl 4-methoxybenzoate 
• 35144-39-9 1-(4-methoxyphenyl)-2-methylpropan-2-ol 
• 75-25-2 Bromoform 
• 2040-20-2 4-methoxyisobutyrophenone 
• 877-99-6 1-methoxy-4-(2-methyl-1-propenyl)benzene 

Downstream Products

• 52571-00-3 1-Fluor-1-(4-methoxyphenyl)-2-methyl-1-propen 
• 78034-97-6 1-(4-Methoxyphenyl)-2,3,4,4-tetramethyl-1-cyclobuten 
• 100219-94-1 10-(4-Methoxyphenyl)-9,9-dimethylbicyclo<6.2.0>dec-1(10)-en 
• 78034-98-7 1-(2-Fluorcyclopentyl)-1-(4-methoxyphenyl)-2-methyl-1-propen 
• 70891-78-0 8-(4-Methoxyphenyl)-7,7-dimethylbicyclo<4.2.0>oct-1(8)-en 
• 70891-79-1 1-(2-Fluorcyclohexyl)-1-(4-methoxyphenyl)-2-methyl-1-propen 
• 1467737-29-6 1-[5-methoxy-2-(4-methoxyphenyl)-4-thiazolyl]-2-[2-methyl-1-(4-methoxyphenyl)-1-propenyl]perfluorocyclopentene 
• 2040-20-2 4-methoxyisobutyrophenone 
• 53578-10-2 1-Methoxy-4-[2-methyl-1-(2,2,2-trifluoro-ethoxy)-propenyl]-benzene 
• 57542-44-6 3,5-Dinitro-benzoic acid 1-(4-methoxy-phenyl)-2-methyl-propenyl ester 
• 57542-43-5 Trifluoro-acetic acid 1-(4-methoxy-phenyl)-2-methyl-propenyl ester 
• 40811-09-4 1-(1-Ethoxy-2-methyl-propenyl)-4-methoxy-benzene 

Relevant articles and documents

Photochromic performance of 1-thiazolyl-2-vinylcyclopentene derivatives having a phenyl-or 4-methoxyphenyl-substituted olefin

1-Thiazolyl-2-vinylcyclopentene derivatives, 1-(5-methoxy-2-phenyl-4- thiazolyl)-2-(2-methyl-1-phenyl-1-propenyl) perfluorocyclopentene (1a), 1-[5-methoxy-2-(4-methoxyphenyl)-4-thiazolyl]-2-(2-methyl-1-phenyl-1-propenyl) perfluorocyclopentene (2a), and 1-[5-methoxy-2-(4-methoxyphenyl)-4-thiazolyl]-2- [1-(4-methoxyphenyl)-2-methyl-1-propenyl] perfluorocyclopentene (3a) were synthesized in an attempt to obtain yellow photochromic compounds having low photocycloreversion quantum yields and large absorption coefficients of the closed-ring isomers. Their photochromic performance, thermal stability, and fatigue resistance were compared with 1-[5-methoxy-2-(4-methoxyphenyl)-4- thiazolyl]-2-(1,2-dimethyl-1-propenyl)perfluorocyclopentene (4a) having a methyl-substituted olefin. Upon irradiation with 313 nm light, compounds 1a, 2a, and 3a changed from colorless to various shades of yellow in toluene. The conversions from the open-ring (1a, 2a, and 3a) to the closed-ring (1b, 2b, and 3b) isomers in the photostationary state under irradiation with 313nm light were 93, 95, and 98%, respectively. Among the three derivatives 3b has the largest absorption coefficient (= 18900M-1cm-1) at 428nm and the lowest cycloreversion quantum yield of 1.8 10-3.

Stability-reactivity relation on the reaction of β,β-disubstituted vinyl cations with ethanol

A family of β,β-disubstituted α-(p-methoxyphenyl)vinyl cations has been generated by the laser flash photolysis of the corresponding vinyl bromides, and the rates of reactions of the cations with ethanol in acetonitrile have been measured at 25°C. The obs