5-{4-[2-(tert-butyl-dimethyl-silanyloxy)-ethoxy]-benzoyl}-2-chloro-benzenesulfonamide

Base Information

• Chemical Name: 5-{4-[2-(tert-butyl-dimethyl-silanyloxy)-ethoxy]-benzoyl}-2-chloro-benzenesulfonamide
• CAS No.: 1189545-70-7
• Molecular Formula: C₂₁H₂₈ClNO₅SSi
• Molecular Weight: 470.062
• Mol file: 1189545-70-7.mol

Synonyms:5-{4-[2-(tert-butyl-dimethyl-silanyloxy)-ethoxy]-benzoyl}-2-chloro-benzenesulfonamide

Chemical Property of 5-{4-[2-(tert-butyl-dimethyl-silanyloxy)-ethoxy]-benzoyl}-2-chloro-benzenesulfonamide

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 5-{4-[2-(tert-butyl-dimethyl-silanyloxy)-ethoxy]-benzoyl}-2-chloro-benzenesulfonamide

There total 2 articles about 5-{4-[2-(tert-butyl-dimethyl-silanyloxy)-ethoxy]-benzoyl}-2-chloro-benzenesulfonamide 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: 53.0%

4-chloro-N-methoxy-N-methyl-3-sulfamoyl-benzamide (1189545-62-7) + [2-(4-Bromophenoxy)ethoxy](1,1-dimethylethyl)dimethylsilane (133305-43-8) → 5-{4-[2-(tert-butyl-dimethyl-silanyloxy)-ethoxy]-benzoyl}-2-chloro-benzenesulfonamide (1189545-70-7)

Guidance literature:

[2-(4-Bromophenoxy)ethoxy](1,1-dimethylethyl)dimethylsilane; With n-butyllithium; In tetrahydrofuran; hexanes; at -78 ℃; for 0.5h;

4-chloro-N-methoxy-N-methyl-3-sulfamoyl-benzamide; In tetrahydrofuran; hexanes; at -78 - 20 ℃; for 18h;

Reference yield:

2-(4-bromophenoxy)ethanol (34743-88-9) + tert-butyldimethylsilyl chloride (18162-48-6) → 5-{4-[2-(tert-butyl-dimethyl-silanyloxy)-ethoxy]-benzoyl}-2-chloro-benzenesulfonamide (1189545-70-7)

Guidance literature:

Multi-step reaction with 2 steps

1.1: dmap; triethylamine / dichloromethane / 18 h / 20 °C

2.1: n-butyllithium / tetrahydrofuran; hexanes / 0.5 h / -78 °C

2.2: 18 h / -78 - 20 °C

With dmap; n-butyllithium; triethylamine; In tetrahydrofuran; hexanes; dichloromethane;

Reference yield: 100.0%

5-{4-[2-(tert-butyl-dimethyl-silanyloxy)-ethoxy]-benzoyl}-2-chloro-benzenesulfonamide (1189545-70-7) → 2-chloro-5-[4-(2-hydroxy-ethoxy)-benzoyl]-benzenesulfonamide (1189543-92-7)

Guidance literature:

5-{4-[2-(tert-butyl-dimethyl-silanyloxy)-ethoxy]-benzoyl}-2-chloro-benzenesulfonamide; With tetrabutyl ammonium fluoride; In tetrahydrofuran; for 1h;

With water; In tetrahydrofuran;

upstream raw materials:

4-chloro-N-methoxy-N-methyl-3-sulfamoyl-benzamide

[2-(4-Bromophenoxy)ethoxy](1,1-dimethylethyl)dimethylsilane

2-(4-bromophenoxy)ethanol

tert-butyldimethylsilyl chloride

Downstream raw materials:

2-chloro-5-[4-(2-hydroxy-ethoxy)-benzoyl]-benzenesulfonamide