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126-29-4

Basic Information
CAS No.: 126-29-4
Name: VIOLAXANTHIN
Article Data: 7
Molecular Structure:
Molecular Structure of 126-29-4 (VIOLAXANTHIN)
Formula: C40H56 O4
Molecular Weight: 600.882
Synonyms: b-Carotene-3,3'-diol,5,6:5',6'-diepoxy-5,5',6,6'-tetrahydro- (6CI); b-Carotene-3,3'-diol,5,6:5',6'-diepoxy-5,5',6,6'-tetrahydro-, all-trans- (8CI);7-Oxabicyclo[4.1.0]heptane, b,b-carotene-3,3'-diol deriv.; COrange 15; E 161e; Violaxanthin; Violaxanthin, all-trans-; all-E-Violaxanthin;all-trans-Violaxanthin; anti,anti-Violaxanthin; trans-Violaxanthin
Density: 1.104g/cm3
Melting Point: 200°
Boiling Point: 705.8°Cat760mmHg
Flash Point: 380.7°C
PSA: 65.52000
LogP: 8.96980
Synthetic route

C21H30O2

126-29-4

Violaxanthin

Conditions
ConditionsYield
With tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride In toluene at 60℃; for 0.166667h;49%
39776-40-4

C46H42P2

28874-44-4

(1'S,2'R,4'S,2E,4E)-5-(1',2'-Epoxy-4'-hydroxy-2',6',6'-trimethylcyclohexyl)-3-methyl-2,4-pentadienal

A

126-29-4

Violaxanthin

B

C40H56O4

C

C40H56O4

Conditions
ConditionsYield
In methanol 30 min, -50 deg C, 2 h, -10 deg C, 12 h, r.t.; Yield given. Yields of byproduct given;

di-cis-neoviolaxanthin C

A

26927-07-1

9-cis-violaxanthin

B

126-29-4

Violaxanthin

Conditions
ConditionsYield
In benzene for 2h; Heating; stereomutation; further violaxanthins; iodine catalyst;
75715-58-1

13-cis-violaxanthin

A

126-29-4

Violaxanthin

B

24620-97-1

central-cis-violaxanthin

Conditions
ConditionsYield
In pyridine at 73.6 - 93.9℃; Kinetics; Equilibrium constant; Thermodynamic data; other C40-carotenoids, other solvents, var. temp.; EA, ΔH, ΔS, ΔG;
24620-97-1

central-cis-violaxanthin

A

126-29-4

Violaxanthin

B

75715-58-1

13-cis-violaxanthin

Conditions
ConditionsYield
In pyridine at 73.6 - 93.9℃; Kinetics; Equilibrium constant; Thermodynamic data; other C40-carotenoids, other solvents, var. temp.; EA, ΔH, ΔS, ΔG;
115406-45-6, 16638-61-2

(all-E,3R,3'R)-β,β-carotene-3,3'-diol 3,3'-diacetate

A

25494-45-5

(3S,5S,6R,3'R)-antheraxanthin

B

80629-24-9

violaxanthin B

C

80629-23-8

violaxanthin A

D

126-29-4

Violaxanthin

Conditions
ConditionsYield
Stage #1: (all-E,3R,3'R)-β,β-carotene-3,3'-diol 3,3'-diacetate With monoperoxyphthalic acid In diethyl ether at 20℃; for 40h;
Stage #2: With potassium hydroxide In methanol Further byproducts given;
A 60 mg
B 75 mg
C 80 mg
D 10 mg
23069-07-0

4,4-(Ethylendioxy)-2,6,6-trimethyl-1-cyclohexen-1-methanol

126-29-4

Violaxanthin

Conditions
ConditionsYield
Multi-step reaction with 9 steps
1: 93 percent / Ti(i-PrO), t-BuOOH / CH2Cl2; 2,2,4-trimethyl-pentane / -67 °C
2: 91 percent / pyridine / 4 h / 0 °C
3: 87 percent / MgSO4, H2O, montmorillonite / toluene / 0.05 h
5: oxalyl chloride, (i-Pr)2EtN, DMSO / CH2Cl2 / 4 h
6: t-BuOK / tetrahydrofuran / 4 h / Ambient temperature
7: 94 percent / DIBAH, H2O, MeOH / diethyl ether; hexane / 1 h / Ambient temperature
8: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
9: methanol / 30 min, -50 deg C, 2 h, -10 deg C, 12 h, r.t.
View Scheme
Multi-step reaction with 11 steps
1: 93 percent / Ti(i-PrO), t-BuOOH / CH2Cl2; 2,2,4-trimethyl-pentane / -67 °C
2: 91 percent / pyridine / 4 h / 0 °C
3: 87 percent / MgSO4, H2O, montmorillonite / toluene / 0.05 h
5: oxalyl chloride, (i-Pr)2EtN, DMSO / CH2Cl2 / 4 h
6: t-BuOK / tetrahydrofuran / 4 h / Ambient temperature
7: 94 percent / DIBAH, H2O, MeOH / diethyl ether; hexane / 1 h / Ambient temperature
8: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
9: 70 percent / 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidone, BuLi / tetrahydrofuran; hexane / 2 h / Ambient temperature
10: 75 percent / H2 / Lindlar-catalyst / ethyl acetate / 0.5 h
11: 0.1percent (i-Pr)2EtN / heptane / 1.5 h / Heating; Irradiation
View Scheme
Multi-step reaction with 8 steps
1: 93 percent / Ti(i-PrO), t-BuOOH / CH2Cl2; 2,2,4-trimethyl-pentane / -67 °C
2: 91 percent / pyridine / 4 h / 0 °C
3: 87 percent / MgSO4, H2O, montmorillonite / toluene / 0.05 h
5: t-BuOK / tetrahydrofuran / 4 h / Ambient temperature
6: 94 percent / DIBAH, H2O, MeOH / diethyl ether; hexane / 1 h / Ambient temperature
7: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
8: methanol / 30 min, -50 deg C, 2 h, -10 deg C, 12 h, r.t.
View Scheme
141-79-7

4-methyl-pent-3-en-2-one

sodium

sodium

126-29-4

Violaxanthin

Conditions
ConditionsYield
Multi-step reaction with 12 steps
1: 36 percent / ZnCl2 / heptane; benzene / 211 h / Heating
2: 1.) CH(OEt)3; 2.) TsOH*H2O / 1.) H2SO4, 12 deg C, 1440 min; 2.) Et2O, H2O, 5 min, r.t.
3: LiAlH4 / various solvent(s) / 2.5 h / 55 °C
4: 93 percent / Ti(i-PrO), t-BuOOH / CH2Cl2; 2,2,4-trimethyl-pentane / -67 °C
5: 91 percent / pyridine / 4 h / 0 °C
6: 87 percent / MgSO4, H2O, montmorillonite / toluene / 0.05 h
8: oxalyl chloride, (i-Pr)2EtN, DMSO / CH2Cl2 / 4 h
9: t-BuOK / tetrahydrofuran / 4 h / Ambient temperature
10: 94 percent / DIBAH, H2O, MeOH / diethyl ether; hexane / 1 h / Ambient temperature
11: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
12: methanol / 30 min, -50 deg C, 2 h, -10 deg C, 12 h, r.t.
View Scheme
Multi-step reaction with 14 steps
1: 36 percent / ZnCl2 / heptane; benzene / 211 h / Heating
2: 1.) CH(OEt)3; 2.) TsOH*H2O / 1.) H2SO4, 12 deg C, 1440 min; 2.) Et2O, H2O, 5 min, r.t.
3: LiAlH4 / various solvent(s) / 2.5 h / 55 °C
4: 93 percent / Ti(i-PrO), t-BuOOH / CH2Cl2; 2,2,4-trimethyl-pentane / -67 °C
5: 91 percent / pyridine / 4 h / 0 °C
6: 87 percent / MgSO4, H2O, montmorillonite / toluene / 0.05 h
8: oxalyl chloride, (i-Pr)2EtN, DMSO / CH2Cl2 / 4 h
9: t-BuOK / tetrahydrofuran / 4 h / Ambient temperature
10: 94 percent / DIBAH, H2O, MeOH / diethyl ether; hexane / 1 h / Ambient temperature
11: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
12: 70 percent / 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidone, BuLi / tetrahydrofuran; hexane / 2 h / Ambient temperature
13: 75 percent / H2 / Lindlar-catalyst / ethyl acetate / 0.5 h
14: 0.1percent (i-Pr)2EtN / heptane / 1.5 h / Heating; Irradiation
View Scheme
Multi-step reaction with 11 steps
1: 36 percent / ZnCl2 / heptane; benzene / 211 h / Heating
2: 1.) CH(OEt)3; 2.) TsOH*H2O / 1.) H2SO4, 12 deg C, 1440 min; 2.) Et2O, H2O, 5 min, r.t.
3: LiAlH4 / various solvent(s) / 2.5 h / 55 °C
4: 93 percent / Ti(i-PrO), t-BuOOH / CH2Cl2; 2,2,4-trimethyl-pentane / -67 °C
5: 91 percent / pyridine / 4 h / 0 °C
6: 87 percent / MgSO4, H2O, montmorillonite / toluene / 0.05 h
8: t-BuOK / tetrahydrofuran / 4 h / Ambient temperature
9: 94 percent / DIBAH, H2O, MeOH / diethyl ether; hexane / 1 h / Ambient temperature
10: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
11: methanol / 30 min, -50 deg C, 2 h, -10 deg C, 12 h, r.t.
View Scheme
23069-06-9

4,4-(Ethylendioxy)-2,6,6-trimethyl-1-cyclohexen-1-carbonsaeure-ethylester

126-29-4

Violaxanthin

Conditions
ConditionsYield
Multi-step reaction with 10 steps
1: LiAlH4 / various solvent(s) / 2.5 h / 55 °C
2: 93 percent / Ti(i-PrO), t-BuOOH / CH2Cl2; 2,2,4-trimethyl-pentane / -67 °C
3: 91 percent / pyridine / 4 h / 0 °C
4: 87 percent / MgSO4, H2O, montmorillonite / toluene / 0.05 h
6: oxalyl chloride, (i-Pr)2EtN, DMSO / CH2Cl2 / 4 h
7: t-BuOK / tetrahydrofuran / 4 h / Ambient temperature
8: 94 percent / DIBAH, H2O, MeOH / diethyl ether; hexane / 1 h / Ambient temperature
9: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
10: methanol / 30 min, -50 deg C, 2 h, -10 deg C, 12 h, r.t.
View Scheme
Multi-step reaction with 12 steps
1: LiAlH4 / various solvent(s) / 2.5 h / 55 °C
2: 93 percent / Ti(i-PrO), t-BuOOH / CH2Cl2; 2,2,4-trimethyl-pentane / -67 °C
3: 91 percent / pyridine / 4 h / 0 °C
4: 87 percent / MgSO4, H2O, montmorillonite / toluene / 0.05 h
6: oxalyl chloride, (i-Pr)2EtN, DMSO / CH2Cl2 / 4 h
7: t-BuOK / tetrahydrofuran / 4 h / Ambient temperature
8: 94 percent / DIBAH, H2O, MeOH / diethyl ether; hexane / 1 h / Ambient temperature
9: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
10: 70 percent / 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidone, BuLi / tetrahydrofuran; hexane / 2 h / Ambient temperature
11: 75 percent / H2 / Lindlar-catalyst / ethyl acetate / 0.5 h
12: 0.1percent (i-Pr)2EtN / heptane / 1.5 h / Heating; Irradiation
View Scheme
Multi-step reaction with 9 steps
1: LiAlH4 / various solvent(s) / 2.5 h / 55 °C
2: 93 percent / Ti(i-PrO), t-BuOOH / CH2Cl2; 2,2,4-trimethyl-pentane / -67 °C
3: 91 percent / pyridine / 4 h / 0 °C
4: 87 percent / MgSO4, H2O, montmorillonite / toluene / 0.05 h
6: t-BuOK / tetrahydrofuran / 4 h / Ambient temperature
7: 94 percent / DIBAH, H2O, MeOH / diethyl ether; hexane / 1 h / Ambient temperature
8: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
9: methanol / 30 min, -50 deg C, 2 h, -10 deg C, 12 h, r.t.
View Scheme
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    China (Mainland)  |  Contact Details

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     China (Mainland)  |  Contact Details

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     China (Mainland)  |  Contact Details

    Business Type:Trading Company

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     China (Mainland)  |  Contact Details

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    Address:Jiaojiang District, Taizhou, Zhejiang, China.

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    We are Hebei minshang biotechnology co. LTD., mainly deal in pharmaceutical intermediates and various chemicals. We are manufacturers and have our own factory. Products & Usage Ph

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    Hangzhou Fenjunchem Co.,Ltd dedicated to the development, production and marketing of chemicals which is specialized in Organic compounds; Active Pharmaceutical Ingredient(s); Nutr

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    China (Mainland)  |  Contact Details

    Business Type:Trading Company

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    Address:hangzhou

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    trans-Violaxanthin

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    Topbatt Chemical Co., Ltd., Established in 2019, located in Shenzhen, Guangdong Province, is a Manufacturer and Trading company which specialized in fine chemicals like Pharmaceutical Reference Standards and Stable Isotopes. Our Stable Isotopes produ

    Topbatt Chemical Co. Ltd., Established in 2019, located in Shenzhen, Guangdong Province, is a Manufacturer and Trading company which specialized in fine chemicals like Pharmaceutic

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     China (Mainland)  |  Contact Details

    Business Type:Lab/Research institutions

    Tel:13828841343

    Address:Rm#A802, National Engineering Laboratory Building, Nanshan District, Shenzhen, China

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