C₂₁H₃₁O₃SiBr

Base Information

Chemical Name:C₂₁H₃₁O₃SiBr
CAS No.:948837-51-2
Molecular Formula:C₂₁H₃₁BrO₃Si
Molecular Weight:439.465
Hs Code.:

C<sub>21</sub>H<sub>31</sub>O<sub>3</sub>SiBr

Synonyms:C₂₁H₃₁O₃SiBr

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Chemical Property of C₂₁H₃₁O₃SiBr

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Technology Process of C₂₁H₃₁O₃SiBr

There total 9 articles about C₂₁H₃₁O₃SiBr 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: 86.0%

: 948837-50-1
C₂₆H₄₀O₅Si

: 948837-51-2
C₂₁H₃₁O₃SiBr

Guidance literature:: With carbon tetrabromide; triphenylphosphine; In dichloromethane; at 40 ℃; for 15h;
DOI:10.3987/COM-08-S(F)26

Reference yield:

: 59382-59-1
2-methyl-3-nitro-benzoic acid methyl ester

: 948837-51-2
C₂₁H₃₁O₃SiBr

Guidance literature:: Multi-step reaction with 8 steps

1.1: H₂ / Pd/C / ethanol / 20 °C

1.2: 78 percent / NaNO₂; H₂SO₄ / Heating

2.1: 83 percent / Br₂ / CH₂Cl₂ / -45 °C

3.1: 92 percent / imidazole / dimethylformamide / 20 °C

4.1: 95 percent / diisobutylaluminum hydride / CH₂Cl₂ / -78 °C

5.1: 90 percent / PPTS / CH₂Cl₂ / 20 °C

6.1: n-BuLi / tetrahydrofuran / -78 °C

7.1: NaH / tetrahydrofuran / 20 °C

8.1: 73 percent / CBr₄; PPh₃ / CH₂Cl₂ / 40 °C

With 1H-imidazole; n-butyllithium; carbon tetrabromide; hydrogen; bromine; pyridinium p-toluenesulfonate; sodium hydride; diisobutylaluminium hydride; triphenylphosphine; palladium on activated charcoal; In tetrahydrofuran; ethanol; dichloromethane; N,N-dimethyl-formamide; 1.2: Sandmeyer reaction / 7.1: Horner-Wadsworth-Emmons reaction;
DOI:10.1016/j.tetlet.2007.05.174

Reference yield:

: 1975-50-4
2-methyl-3-nitrobenzic acid

: 948837-51-2
C₂₁H₃₁O₃SiBr

Guidance literature:: Multi-step reaction with 9 steps

1.1: 92 percent / H₂SO₄ / Heating

2.1: H₂ / Pd/C / ethanol / 20 °C

2.2: 78 percent / NaNO₂; H₂SO₄ / Heating

3.1: 83 percent / Br₂ / CH₂Cl₂ / -45 °C

4.1: 92 percent / imidazole / dimethylformamide / 20 °C

5.1: 95 percent / diisobutylaluminum hydride / CH₂Cl₂ / -78 °C

6.1: 90 percent / PPTS / CH₂Cl₂ / 20 °C

7.1: n-BuLi / tetrahydrofuran / -78 °C

8.1: NaH / tetrahydrofuran / 20 °C

9.1: 73 percent / CBr₄; PPh₃ / CH₂Cl₂ / 40 °C

With 1H-imidazole; n-butyllithium; carbon tetrabromide; sulfuric acid; hydrogen; bromine; pyridinium p-toluenesulfonate; sodium hydride; diisobutylaluminium hydride; triphenylphosphine; palladium on activated charcoal; In tetrahydrofuran; ethanol; dichloromethane; N,N-dimethyl-formamide; 2.2: Sandmeyer reaction / 8.1: Horner-Wadsworth-Emmons reaction;
DOI:10.1016/j.tetlet.2007.05.174