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Cas Database

57767-02-9

57767-02-9

Identification

  • Product Name:Benzene, (1-methoxy-2-butenyl)-

  • CAS Number: 57767-02-9

  • EINECS:

  • Molecular Weight:162.232

  • Molecular Formula: C11H14O

  • HS Code:

  • Mol File:57767-02-9.mol

Synonyms:

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Safety information and MSDS view more

  • Signal Word:no data available

  • Hazard Statement:no data available

  • First-aid measures: General adviceConsult a physician. Show this safety data sheet to the doctor in attendance.If inhaled If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician. In case of skin contact Wash off with soap and plenty of water. Consult a physician. In case of eye contact Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician. If swallowed Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician.

  • Fire-fighting measures: Suitable extinguishing media Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide. Wear self-contained breathing apparatus for firefighting if necessary.

  • Accidental release measures: Use personal protective equipment. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust. For personal protection see section 8. Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Discharge into the environment must be avoided. Pick up and arrange disposal. Sweep up and shovel. Keep in suitable, closed containers for disposal.

  • Handling and storage: Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Avoid exposure - obtain special instructions before use.Provide appropriate exhaust ventilation at places where dust is formed. For precautions see section 2.2. Store in cool place. Keep container tightly closed in a dry and well-ventilated place.

  • Exposure controls/personal protection:Occupational Exposure limit valuesBiological limit values Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday. Eye/face protection Safety glasses with side-shields conforming to EN166. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU). Skin protection Wear impervious clothing. The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique(without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it. Respiratory protection Wear dust mask when handling large quantities. Thermal hazards

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Relevant articles and documentsAll total 4 Articles be found

Photolysis of 1,1,1-Triarylalk-2-enes and 1,1,1-Triarylhept-2-ynes. A Novel Generation of Aryl(alk-1-enyl)carbenes ans Aryl(alk-1-ynyl)carbenes

Shi, Min,Shouki, Kouji,Okamoto, Yoshiki,Takamuku, Setsuo

, p. 2443 - 2450 (2007/10/02)

Upon UV irradiation in methanol, 1,1,1-triarylhept-2-ynes underwent an α,α-elimination of two aryl groups to give a biaryl and the corresponding carbene which reacted with methanol to give a 1-aryl-1-methoxyhept-2-yne. 1,1,1-Triphenylalk-2-enes underwent α,α-elimination of two phenyl groups and also elimination of an alkene and a phenyl group to give biphenyl and a 1-phenylalkene respectively.In both cases, the corresponding carbenes were formed and were isolated as methanol insertion products (a 1-methoxy-1-phenylalk-2-ene and diphenylmethyl methyl ether, respectively).A rearrangement product, a 1,1,2-triphenylcyclopropane, was also formed.

Photolysis of 1,1,1-Triphenyl-2-alkenes and Methyl Triphenylacetate

Shi, Min,Okamoto, Yoshiki,Takamuku, Setsuo

, p. 1079 - 1082 (2007/10/02)

Upon UV irradiation in methanol 1,1,1-triphenyl-2-alkene or methyl triphenylacetate underwent two kinds of α,α-elimination of two phenyl groups and phenyl-alkenyl groups or phenyl-methoxycarbonyl groups to give biphenyl, 1-phenylalkene or methyl benzoate, and two kinds of correspondending carbene intermediates, which inserted into the O-H bond of methanol to afford two kinds of methyl ethers, respectively.

Photochemistry of Arylbutadienes. Part 2. Preparation and Photochemistry of 1-(Substituted-aryl)butadienes. A Ground-state Substituent Effect on an Excited-state Reaction

Baldry, Peter J.

, p. 805 - 808 (2007/10/02)

Yields and quantum yields are reported for the photoaddition of methanol to 1-phenylbutadiene and eight substituted 1-phenylbutadienes.For allyl and homoallyl products log Φ correlates more satisfactorily with ground-state substituent constants than with excited-state constants; for cyclopropylmethyl products, no correlation is observed with either set of constants.

Photochemistry of Arylbutadienes. Part 3. Mechanisms of Photoaddition of Methanol to 1-Arylbutadienes

Baldry, Peter

, p. 809 - 815 (2007/10/02)

The mechanism of formation of methyl ethers from irradiation of 1-arylbutadienes in methanol has been studied by deuterium labelling, fluorescence quenching, sensitisation, and kinetic studies.Cyclopropylmethyl ethers arise by a bicyclobutane mechanism; allyl and homoallyl ethers are formed by reaction of methanol with the 1Bu-like excited singlet diene to produce carbocation intermediates.

Process route upstream and downstream products

Process route

1,1,1-triphenylbut-2-ene
2650-86-4

1,1,1-triphenylbut-2-ene

1-phenylpropene
637-50-3

1-phenylpropene

benzhydryl methyl ether
1016-09-7

benzhydryl methyl ether

1-methoxy-1-phenylbut-2-ene
57767-02-9

1-methoxy-1-phenylbut-2-ene

2-methyl-1,1,3-triphenylcyclopropane
130138-97-5

2-methyl-1,1,3-triphenylcyclopropane

Conditions
Conditions Yield
In methanol; for 2h; Quantum yield; Product distribution; Irradiation; irradiation in benzene solution;
22%
15%
5%
8%
Conditions
Conditions Yield
80%
Multistep reaction; (i) NaH, (ii) /BRN= 969135/;
methanol
67-56-1

methanol

buta-1,3-dien-1-ylbenzene
1515-78-2

buta-1,3-dien-1-ylbenzene

cyclobut-2-enyl-benzene
20211-64-7

cyclobut-2-enyl-benzene

α-methoxybenzylcyclopropane
5558-08-7

α-methoxybenzylcyclopropane

(+/-)-3-methoxy-1-phenyl-1-butene
24808-74-0,57766-97-9,83320-37-0

(+/-)-3-methoxy-1-phenyl-1-butene

4-methoxy-4-phenyl-1-butene
22039-97-0

4-methoxy-4-phenyl-1-butene

1-methoxy-1-phenylbut-2-ene
57767-02-9

1-methoxy-1-phenylbut-2-ene

3-methoxy-4-phenylbut-1-ene
57766-96-8

3-methoxy-4-phenylbut-1-ene

Conditions
Conditions Yield
Product distribution; Quantum yield; Irradiation;
2.8%
4.2%
2%
0.8%
4.2%
Product distribution; Mechanism; Irradiation; with/without aq. H2SO4, benzene;
Product distribution; Mechanism; Irradiation; with different triplet sensitizers (acetophenone, benzophenone, anthraquinone, Michler's ketone, fluorenone, anthracene);
1,1,1-triphenylbut-2-ene
2650-86-4

1,1,1-triphenylbut-2-ene

benzhydryl methyl ether
1016-09-7

benzhydryl methyl ether

1-methoxy-1-phenylbut-2-ene
57767-02-9

1-methoxy-1-phenylbut-2-ene

2-methyl-1,1,3-triphenylcyclopropane
130138-97-5

2-methyl-1,1,3-triphenylcyclopropane

Conditions
Conditions Yield
In methanol; for 3h; Further byproducts given; Ambient temperature; Irradiation;
5 % Chromat.
15 % Chromat.
22 % Chromat.
8 % Chromat.
phenylmagnesium bromide

phenylmagnesium bromide

1-methoxy-1-phenylbut-2-ene
57767-02-9

1-methoxy-1-phenylbut-2-ene

Conditions
Conditions Yield
Multi-step reaction with 2 steps
2: 80 percent
methanol
67-56-1

methanol

buta-1,3-dien-1-ylbenzene
1515-78-2

buta-1,3-dien-1-ylbenzene

1-methoxy-1-phenylbut-2-ene
57767-02-9

1-methoxy-1-phenylbut-2-ene

Conditions
Conditions Yield
Irradiation;
1,1,1-triphenylbut-2-ene
2650-86-4

1,1,1-triphenylbut-2-ene

1-phenylpropene
637-50-3

1-phenylpropene

benzhydryl methyl ether
1016-09-7

benzhydryl methyl ether

1-methoxy-1-phenylbut-2-ene
57767-02-9

1-methoxy-1-phenylbut-2-ene

2-methyl-1,1,3-triphenylcyclopropane
130138-97-5

2-methyl-1,1,3-triphenylcyclopropane

Conditions
Conditions Yield
In methanol; for 2h; Quantum yield; Product distribution; Irradiation; irradiation in benzene solution;
22%
15%
5%
8%
Conditions
Conditions Yield
80%
Multistep reaction; (i) NaH, (ii) /BRN= 969135/;
methanol
67-56-1

methanol

buta-1,3-dien-1-ylbenzene
1515-78-2

buta-1,3-dien-1-ylbenzene

cyclobut-2-enyl-benzene
20211-64-7

cyclobut-2-enyl-benzene

α-methoxybenzylcyclopropane
5558-08-7

α-methoxybenzylcyclopropane

(+/-)-3-methoxy-1-phenyl-1-butene
24808-74-0,57766-97-9,83320-37-0

(+/-)-3-methoxy-1-phenyl-1-butene

4-methoxy-4-phenyl-1-butene
22039-97-0

4-methoxy-4-phenyl-1-butene

1-methoxy-1-phenylbut-2-ene
57767-02-9

1-methoxy-1-phenylbut-2-ene

3-methoxy-4-phenylbut-1-ene
57766-96-8

3-methoxy-4-phenylbut-1-ene

Conditions
Conditions Yield
Product distribution; Quantum yield; Irradiation;
2.8%
4.2%
2%
0.8%
4.2%
Product distribution; Mechanism; Irradiation; with/without aq. H2SO4, benzene;
Product distribution; Mechanism; Irradiation; with different triplet sensitizers (acetophenone, benzophenone, anthraquinone, Michler's ketone, fluorenone, anthracene);
1,1,1-triphenylbut-2-ene
2650-86-4

1,1,1-triphenylbut-2-ene

benzhydryl methyl ether
1016-09-7

benzhydryl methyl ether

1-methoxy-1-phenylbut-2-ene
57767-02-9

1-methoxy-1-phenylbut-2-ene

2-methyl-1,1,3-triphenylcyclopropane
130138-97-5

2-methyl-1,1,3-triphenylcyclopropane

Conditions
Conditions Yield
In methanol; for 3h; Further byproducts given; Ambient temperature; Irradiation;
5 % Chromat.
15 % Chromat.
22 % Chromat.
8 % Chromat.

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