[3-Bromo-2,5,6-trimethyl-4-(2-methyl-propenylsulfanyl)-phenoxy]-tert-butyl-dimethyl-silane

Base Information

• Chemical Name: [3-Bromo-2,5,6-trimethyl-4-(2-methyl-propenylsulfanyl)-phenoxy]-tert-butyl-dimethyl-silane
• CAS No.: 205182-91-8
• Molecular Formula: C₁₉H₃₁BrOSSi
• Molecular Weight: 415.51
• Mol file: 205182-91-8.mol

Synonyms:[3-Bromo-2,5,6-trimethyl-4-(2-methyl-propenylsulfanyl)-phenoxy]-tert-butyl-dimethyl-silane

Chemical Property of [3-Bromo-2,5,6-trimethyl-4-(2-methyl-propenylsulfanyl)-phenoxy]-tert-butyl-dimethyl-silane

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of [3-Bromo-2,5,6-trimethyl-4-(2-methyl-propenylsulfanyl)-phenoxy]-tert-butyl-dimethyl-silane

There total 2 articles about [3-Bromo-2,5,6-trimethyl-4-(2-methyl-propenylsulfanyl)-phenoxy]-tert-butyl-dimethyl-silane 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: 74.0%

1-[2-Bromo-4-(tert-butyl-dimethyl-silanyloxy)-3,5,6-trimethyl-phenylsulfanyl]-2-methyl-propan-2-ol (205182-89-4) → [3-Bromo-2,5,6-trimethyl-4-(2-methyl-propenylsulfanyl)-phenoxy]-tert-butyl-dimethyl-silane (205182-91-8)

Guidance literature:

With toluene-4-sulfonic acid; In toluene; for 22h; Heating;

DOI:10.1021/jo972087l

Reference yield:

[3-Bromo-4-(2-bromo-2-methyl-propylsulfanyl)-2,5,6-trimethyl-phenoxy]-tert-butyl-dimethyl-silane (205182-88-3) → [3-Bromo-2,5,6-trimethyl-4-(2-methyl-propenylsulfanyl)-phenoxy]-tert-butyl-dimethyl-silane (205182-91-8)

Guidance literature:

Multi-step reaction with 2 steps

1: Et₃N / tetrahydrofuran; H₂O / 2.5 h / Ambient temperature

2: 74 percent / p-TsOH / toluene / 22 h / Heating

With toluene-4-sulfonic acid; triethylamine; In tetrahydrofuran; water; toluene;

DOI:10.1021/jo972087l

Reference yield: 50.0%

[3-Bromo-2,5,6-trimethyl-4-(2-methyl-propenylsulfanyl)-phenoxy]-tert-butyl-dimethyl-silane (205182-91-8) → tert-Butyl-dimethyl-(2,2,4,6,7-pentamethyl-2,3-dihydro-benzo[b]thiophen-5-yloxy)-silane + tert-Butyl-dimethyl-(3,3,4,6,7-pentamethyl-2,3-dihydro-benzo[b]thiophen-5-yloxy)-silane (205182-92-9) + tert-Butyl-dimethyl-[2,3,6-trimethyl-4-(2-methyl-propenylsulfanyl)-phenoxy]-silane

Guidance literature:

With 2,2'-azobis(isobutyronitrile); tris-(trimethylsilyl)silane; In benzene; for 15h; Yields of byproduct given;

DOI:10.1021/jo972087l

upstream raw materials:

1-[2-Bromo-4-(tert-butyl-dimethyl-silanyloxy)-3,5,6-trimethyl-phenylsulfanyl]-2-methyl-propan-2-ol

[3-Bromo-4-(2-bromo-2-methyl-propylsulfanyl)-2,5,6-trimethyl-phenoxy]-tert-butyl-dimethyl-silane

Downstream raw materials:

tert-Butyl-dimethyl-(3,3,4,6,7-pentamethyl-2,3-dihydro-benzo[b]thiophen-5-yloxy)-silane