(E)-2-(4-ethynylstyryl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

Base Information

• Chemical Name: (E)-2-(4-ethynylstyryl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
• CAS No.: 1242770-52-0
• Molecular Formula: C₁₆H₁₉BO₂
• Molecular Weight: 254.137
• Mol file: 1242770-52-0.mol

Synonyms:(E)-2-(4-ethynylstyryl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

Chemical Property of (E)-2-(4-ethynylstyryl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

Chemical Property:

Purity/Quality:

99% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (E)-2-(4-ethynylstyryl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

There total 1 articles about (E)-2-(4-ethynylstyryl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 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: 58.0%

1,4-diethynylbenzene (935-14-8) + 4,4,5,5-tetramethyl-[1,3,2]-dioxaboralane (25015-63-8) → (E)-2-(4-ethynylstyryl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (1242770-52-0)

Guidance literature:

With zinc trifluoromethanesulfonate; sodium triethylborohydride; In tetrahydrofuran; toluene; at 80 ℃; for 10h; regioselective reaction; Schlenk technique; Inert atmosphere;

DOI:10.1002/asia.201900839

Reference yield: 81.0%

2-[(trimethylsilyl)methyl]benzyl phenyl carbonate + (E)-2-(4-ethynylstyryl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (1242770-52-0) → 4,4,5,5-tetramethyl-2-[3-(4-ethynylphenyl)-1,2,3,4-tetrahydronaphthalen-2-yl]-[1,3,2]dioxaborolane

Guidance literature:

With potassium fluoride; 18-crown-6 ether; In 1,4-dioxane; at 100 ℃; for 9h; Inert atmosphere;

DOI:10.1039/c002949a

Reference yield: 81.0%

2-[(trimethylsilyl)methyl]benzyl phenyl carbonate + (E)-2-(4-ethynylstyryl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (1242770-52-0) → (C10H10)((C6H4)CCH)(BO2C2(CH3)4)

Guidance literature:

With KF; 18-crown-6; In 1,4-dioxane; 1-PhOC(O)OCH2-2-(Me3SiCH2)C6H4, 2-((E)-(4-BrPh)-CH=CH)-(4,4,5,5-Me4-dihydro-1,3,2-dioxaborol), KF, 18-crown-6 (3:2:3.3:3.3 mol) heated in dioxane soln. at 100°C for 9 h;

DOI:10.1039/c002949a

upstream raw materials:

1,4-diethynylbenzene

4,4,5,5-tetramethyl-[1,3,2]-dioxaboralane