1-bromo-4,4-diphenylspiropentane

Base Information

Chemical Name:1-bromo-4,4-diphenylspiropentane
CAS No.:770738-68-6
Molecular Formula:C₁₇H₁₅Br
Molecular Weight:299.21
Hs Code.:

Synonyms:1-bromo-4,4-diphenylspiropentane

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Chemical Property of 1-bromo-4,4-diphenylspiropentane

Chemical Property:

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Technology Process of 1-bromo-4,4-diphenylspiropentane

There total 4 articles about 1-bromo-4,4-diphenylspiropentane 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: 75.0%

: 770738-67-5
1,1-dibromo-4,4-diphenylspiropentane

: 770738-68-6
1-bromo-4,4-diphenylspiropentane

Guidance literature:: 1,1-dibromo-4,4-diphenylspiropentane; With n-butyllithium; In tetrahydrofuran; diethyl ether; at -100 ℃; for 0.333333h;

With methanol; In tetrahydrofuran; diethyl ether; at -100 ℃; Further stages.;
DOI:10.1016/j.tet.2004.06.105

Reference yield:

: 17343-74-7
1,1-dibromo-2,2-diphenylcyclopropane

: 770738-68-6
1-bromo-4,4-diphenylspiropentane

Guidance literature:: Multi-step reaction with 4 steps

1.1: 88 percent / n-BuLi / tetrahydrofuran; hexane / 0.75 h / -90 °C

2.1: 90 percent / t-BuOK / dimethylsulfoxide / 1 h / 38 °C

3.1: 45 percent / NaOH; triethylbenzylammonium chloride / H₂O; ethanol; CH₂Cl₂ / 4 h / Heating

4.1: n-BuLi / diethyl ether; tetrahydrofuran / 0.33 h / -100 °C

4.2: 75 percent / methanol / tetrahydrofuran; diethyl ether / -100 °C

With sodium hydroxide; n-butyllithium; potassium tert-butylate; N-benzyl-N,N,N-triethylammonium chloride; In tetrahydrofuran; diethyl ether; ethanol; hexane; dichloromethane; water; dimethyl sulfoxide;
DOI:10.1016/j.tet.2004.06.105

Reference yield:

: 27468-37-7
1-bromo-1-methyl-2,2-diphenylcyclopropane

: 770738-68-6
1-bromo-4,4-diphenylspiropentane

Guidance literature:: Multi-step reaction with 3 steps

1.1: 90 percent / t-BuOK / dimethylsulfoxide / 1 h / 38 °C

2.1: 45 percent / NaOH; triethylbenzylammonium chloride / H₂O; ethanol; CH₂Cl₂ / 4 h / Heating

3.1: n-BuLi / diethyl ether; tetrahydrofuran / 0.33 h / -100 °C

3.2: 75 percent / methanol / tetrahydrofuran; diethyl ether / -100 °C

With sodium hydroxide; n-butyllithium; potassium tert-butylate; N-benzyl-N,N,N-triethylammonium chloride; In tetrahydrofuran; diethyl ether; ethanol; dichloromethane; water; dimethyl sulfoxide;
DOI:10.1016/j.tet.2004.06.105