Toluene-4-sulfonic acid 4-ethyl-4-hydroxy-hexyl ester

Base Information

• Chemical Name: Toluene-4-sulfonic acid 4-ethyl-4-hydroxy-hexyl ester
• CAS No.: 125573-88-8
• Molecular Formula: C₁₅H₂₄O₄S
• Molecular Weight: 300.419
• Mol file: 125573-88-8.mol

Synonyms:Toluene-4-sulfonic acid 4-ethyl-4-hydroxy-hexyl ester

Chemical Property of Toluene-4-sulfonic acid 4-ethyl-4-hydroxy-hexyl ester

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of Toluene-4-sulfonic acid 4-ethyl-4-hydroxy-hexyl ester

There total 1 articles about Toluene-4-sulfonic acid 4-ethyl-4-hydroxy-hexyl ester 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: 96.0%

4-ethyl-hexane-1,4-diol (1113-00-4) + p-toluenesulfonyl chloride (98-59-9) → Toluene-4-sulfonic acid 4-ethyl-4-hydroxy-hexyl ester (125573-88-8)

Guidance literature:

In pyridine; at 0 ℃; for 1h;

DOI:10.1016/S0968-0896(00)00267-4

Reference yield:

Toluene-4-sulfonic acid 4-ethyl-4-hydroxy-hexyl ester (125573-88-8) → (5Z,7E)-(1S,2S,3R,20R)-24,26,27-trihomo-2-methyl-22-oxa-9,10-seco-5,7,10(19)-cholestatriene-1,3,25-triol

Guidance literature:

Multi-step reaction with 8 steps

1: 2,6-lutidine / 1 h / 0 °C

2: 92 percent / NaI / dimethylformamide / 6 h / 20 °C

3: 86 percent / KH; 18-crown-6 / tetrahydrofuran / 20 °C

4: 81 percent / TFA / CH₂Cl₂ / 0.75 h / 0 °C

5: 80 percent / 4 Angstroem molecular sieves; PDC / CH₂Cl₂ / 1 h / 20 °C

6: 33 percent / NaHMDS / tetrahydrofuran / -60 - 20 °C

7: (dba)3Pd₂*CHCl₃; Ph₃P; Et₃N / toluene / 6 h / Heating

8: 6 percent / CSA / methanol / 20 °C

With 2,6-dimethylpyridine; tris(dibenzylideneacetone)dipalladium⁽⁰⁾ chloroform complex; dipyridinium dichromate; 18-crown-6 ether; 4 A molecular sieve; camphor-10-sulfonic acid; sodium hexamethyldisilazane; potassium hydride; triethylamine; triphenylphosphine; trifluoroacetic acid; sodium iodide; In tetrahydrofuran; methanol; dichloromethane; N,N-dimethyl-formamide; toluene; 1: silylation / 2: substitution / 3: etherification / 4: hydrolysis / 5: oxidation / 6: Wittig reaction / 7: cyclocondensation / 8: hydrolysis;

DOI:10.1016/S0968-0896(00)00267-4

Reference yield:

Toluene-4-sulfonic acid 4-ethyl-4-hydroxy-hexyl ester (125573-88-8) → 6-((R)-1-{(1S,3aS,7aS)-4-[2-[(3S,5R)-3,5-Bis-(tert-butyl-dimethyl-silanyloxy)-2-methylene-cyclohex-(Z)-ylidene]-eth-(E)-ylidene]-7a-methyl-octahydro-inden-1-yl}-ethoxy)-3-ethyl-hexan-3-ol

Guidance literature:

Multi-step reaction with 7 steps

1: 2,6-lutidine / 1 h / 0 °C

2: 92 percent / NaI / dimethylformamide / 6 h / 20 °C

3: 86 percent / KH; 18-crown-6 / tetrahydrofuran / 20 °C

4: 81 percent / TFA / CH₂Cl₂ / 0.75 h / 0 °C

5: 80 percent / 4 Angstroem molecular sieves; PDC / CH₂Cl₂ / 1 h / 20 °C

6: 33 percent / NaHMDS / tetrahydrofuran / -60 - 20 °C

7: (dba)3Pd₂*CHCl₃; Ph₃P; Et₃N / toluene / 6 h / Heating

With 2,6-dimethylpyridine; tris(dibenzylideneacetone)dipalladium⁽⁰⁾ chloroform complex; dipyridinium dichromate; 18-crown-6 ether; 4 A molecular sieve; sodium hexamethyldisilazane; potassium hydride; triethylamine; triphenylphosphine; trifluoroacetic acid; sodium iodide; In tetrahydrofuran; dichloromethane; N,N-dimethyl-formamide; toluene; 1: silylation / 2: substitution / 3: etherification / 4: hydrolysis / 5: oxidation / 6: Wittig reaction / 7: cyclocondensation;

DOI:10.1016/S0968-0896(00)00267-4

upstream raw materials:

4-ethyl-hexane-1,4-diol

p-toluenesulfonyl chloride

Downstream raw materials:

toluene-4-sulfonic acid 4-(tert-butyl-dimethyl-silanyloxy)-4-ethyl-hexyl ester

lexacalcitol

6-((R)-1-{(1S,3aS,7aS)-4-[2-[(3S,4S,5R)-3,5-Bis-(tert-butyl-dimethyl-silanyloxy)-4-methyl-2-methylene-cyclohex-(Z)-ylidene]-eth-(E)-ylidene]-7a-methyl-octahydro-inden-1-yl}-ethoxy)-3-ethyl-hexan-3-ol

Toluene-4-sulfonic acid 4-acetylamino-4-ethyl-hexyl ester

Refernces

• 1、 Zahorszky, U. I.,Schulze, P.. "Bifunctional Even-electron Ions. V. Fragmentation Behaviour of Aliphatic Hydroxonium Ions Containing an Additional Cyano Group". . p. 759 - 766. Retrieved 2007/10/02.