(2E,6E,10E,14E,18E)-3,7,11,15,19,23-hexamethyl-1-p-tolylsulphonyltetracosa-2,6,10,14,18,22-hexaene

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Chemical Name:(2E,6E,10E,14E,18E)-3,7,11,15,19,23-hexamethyl-1-p-tolylsulphonyltetracosa-2,6,10,14,18,22-hexaene
CAS No.:68690-49-3
Molecular Formula:C₃₇H₅₆O₂S
Molecular Weight:564.916
Hs Code.:

Synonyms:(2E,6E,10E,14E,18E)-3,7,11,15,19,23-hexamethyl-1-p-tolylsulphonyltetracosa-2,6,10,14,18,22-hexaene

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Chemical Property of (2E,6E,10E,14E,18E)-3,7,11,15,19,23-hexamethyl-1-p-tolylsulphonyltetracosa-2,6,10,14,18,22-hexaene

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Technology Process of (2E,6E,10E,14E,18E)-3,7,11,15,19,23-hexamethyl-1-p-tolylsulphonyltetracosa-2,6,10,14,18,22-hexaene

There total 19 articles about (2E,6E,10E,14E,18E)-3,7,11,15,19,23-hexamethyl-1-p-tolylsulphonyltetracosa-2,6,10,14,18,22-hexaene 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:

: 105-87-3,8022-83-1
3,7-dimethyl-2E,6-octadien-1-yl acetate

: 68690-49-3
(2E,6E,10E,14E,18E)-3,7,11,15,19,23-hexamethyl-1-p-tolylsulphonyltetracosa-2,6,10,14,18,22-hexaene

Guidance literature:: Multi-step reaction with 10 steps

1: 44 percent / SeO₂ / aq. ethanol / 9 h / Heating

2: 72 percent / NaBH₄ / methanol / 5 h / -10 °C

3: 94 percent / PBr₃, pyridine / diethyl ether / 6 h / 0 °C

4: 1.) n-BuLi / 1.) THF, HMPA, hexane, -78 deg C, 1.5 h, 2.) 6 h

5: 5percent sodium amalgam, disodium hydrogen phosphate / methanol / 2 h / 0 °C

6: 91 percent / PBr₃, pyridine / diethyl ether / 6 h / -5 °C

7: 78 percent / dimethylformamide / 24 h / Ambient temperature

8: 1.) n-BuLi, 3.) H₂O, KOH

9: 63 percent / Li, ethylamine / diethyl ether / 1 h / -78 °C

10: 1.) PBr₃, pyridine / 1.) ether, 2.) DMF, ambient temperature

With pyridine; potassium hydroxide; sodium tetrahydroborate; disodium hydrogenphosphate; sodium amalgam; n-butyllithium; selenium(IV) oxide; water; phosphorus tribromide; lithium; ethylamine; In methanol; diethyl ether; ethanol; N,N-dimethyl-formamide;
DOI:10.1039/P19810000761

Reference yield:

: 37905-02-5
(2E,6E)-3,7-dimethyl-8-oxoocta-2,6-dien-1-yl acetate

: 68690-49-3
(2E,6E,10E,14E,18E)-3,7,11,15,19,23-hexamethyl-1-p-tolylsulphonyltetracosa-2,6,10,14,18,22-hexaene

Guidance literature:: Multi-step reaction with 9 steps

1: 72 percent / NaBH₄ / methanol / 5 h / -10 °C

2: 94 percent / PBr₃, pyridine / diethyl ether / 6 h / 0 °C

3: 1.) n-BuLi / 1.) THF, HMPA, hexane, -78 deg C, 1.5 h, 2.) 6 h

4: 5percent sodium amalgam, disodium hydrogen phosphate / methanol / 2 h / 0 °C

5: 91 percent / PBr₃, pyridine / diethyl ether / 6 h / -5 °C

6: 78 percent / dimethylformamide / 24 h / Ambient temperature

7: 1.) n-BuLi, 3.) H₂O, KOH

8: 63 percent / Li, ethylamine / diethyl ether / 1 h / -78 °C

9: 1.) PBr₃, pyridine / 1.) ether, 2.) DMF, ambient temperature

With pyridine; potassium hydroxide; sodium tetrahydroborate; disodium hydrogenphosphate; sodium amalgam; n-butyllithium; water; phosphorus tribromide; lithium; ethylamine; In methanol; diethyl ether; N,N-dimethyl-formamide;
DOI:10.1039/P19810000761

Reference yield:

: 50848-64-1
2E,6E,10E-geranylgeranyl bromide

: 68690-49-3,84935-41-1,92542-76-2
1-((2E,6E,10E,14Z,18E)-3,7,11,15,19,23-Hexamethyl-tetracosa-2,6,10,14,18,22-hexaene-1-sulfonyl)-4-methyl-benzene

Guidance literature:: Multi-step reaction with 5 steps

1: dimethylformamide / 1 h / Ambient temperature

2: 88.9 percent / t-BuOK / tetrahydrofuran; dimethylformamide / 0.33 h / -20 °C

3: 82 percent / Li, EtNH₂ / tetrahydrofuran / 0.25 h / -60 °C

4: PBr₃ / tetrahydrofuran / 0.25 h / -10 - -7 °C

5: dimethylformamide / 1 h / Ambient temperature

With potassium tert-butylate; phosphorus tribromide; lithium; ethylamine; In tetrahydrofuran; N,N-dimethyl-formamide;
DOI:10.1246/bcsj.54.3530