(11Z,11'Z)-β,β-carotene

Base Information

• Chemical Name: (11Z,11'Z)-β,β-carotene
• CAS No.: 201658-43-7
• Molecular Formula: C₄₀H₅₆
• Molecular Weight: 536.885
• Mol file: 201658-43-7.mol

Synonyms:(11Z,11'Z)-β,β-carotene

Chemical Property of (11Z,11'Z)-β,β-carotene

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (11Z,11'Z)-β,β-carotene

There total 5 articles about (11Z,11'Z)-β,β-carotene which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield:

11,12,11',12'-tetradehydro-β,β-carotene (4517-40-2) → (11Z)-β,β-carotene (18526-49-3) + (11Z,11'Z)-β,β-carotene (201658-43-7)

Guidance literature:

With quinoline; hydrogen; Lindlar's catalyst; In ethyl acetate; for 1h; under 760 Torr; Yield given. Yields of byproduct given; Ambient temperature;

DOI:10.1039/a703763e

Reference yield:

(2E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethyl-cyclohex-1-enyl)-nona-2,6,8-trien-4-yn-1-ol (29443-88-7) → (11Z,11'Z)-β,β-carotene (201658-43-7)

Guidance literature:

Multi-step reaction with 4 steps

1: phosphorus tribromide / ethyl acetate / 1 h / -20 °C

2: ethyl acetate / Ambient temperature

3: 10.4 percent / NaOMe / CH₂Cl₂; methanol / 0.5 h / -25 °C

4: H₂, quinoline / Lindlar catalyst / ethyl acetate / 1 h / 760 Torr / Ambient temperature

With quinoline; hydrogen; sodium methylate; phosphorus tribromide; Lindlar's catalyst; In methanol; dichloromethane; ethyl acetate;

DOI:10.1039/a703763e

Reference yield:

[(2E,6E,8E)-3,7-Dimethyl-9-(2,6,6-trimethyl-cyclohex-1-enyl)-nona-2,6,8-trien-4-ynyl]-triphenyl-phosphonium; bromide (31414-91-2) → (11Z,11'Z)-β,β-carotene (201658-43-7)

Guidance literature:

Multi-step reaction with 2 steps

1: 10.4 percent / NaOMe / CH₂Cl₂; methanol / 0.5 h / -25 °C

2: H₂, quinoline / Lindlar catalyst / ethyl acetate / 1 h / 760 Torr / Ambient temperature

With quinoline; hydrogen; sodium methylate; Lindlar's catalyst; In methanol; dichloromethane; ethyl acetate;

DOI:10.1039/a703763e

upstream raw materials:

11,12,11',12'-tetradehydro-β,β-carotene

(2E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethyl-cyclohex-1-enyl)-nona-2,6,8-trien-4-yn-1-ol

[(2E,6E,8E)-3,7-Dimethyl-9-(2,6,6-trimethyl-cyclohex-1-enyl)-nona-2,6,8-trien-4-ynyl]-triphenyl-phosphonium; bromide

Downstream raw materials:

(11Z)-β,β-carotene