ChemicalBook CAS DataBase List 2,2'-(9,9-bis(6-bromohexyl)-9H-fluorene-2,7-diyl)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane)

2,2'-(9,9-bis(6-bromohexyl)-9H-fluorene-2,7-diyl)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane) synthesis

6synthesis methods

Product Name:2,2'-(9,9-bis(6-bromohexyl)-9H-fluorene-2,7-diyl)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane)
CAS Number:851775-62-7
Molecular formula:C37H54B2Br2O4
Molecular Weight:744.25

73183-34-3
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2,7-DIBROMO-9,9-BIS(6-BROMOHEXYL)FLUORENE,99%

570414-33-4
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2,2'-(9,9-bis(6-bromohexyl)-9H-fluorene-2,7-diyl)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane)

851775-62-7
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Yield:851775-62-7 82%

Reaction Conditions:

with (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride;potassium acetate in 1,4-dioxane at 100; for 24 h;Inert atmosphere;

Steps:

1.2

Step 2:Compound A (6 g, 9.23 mmol),bis(pinacolato)diboron(9.36 g, 36.9 mmol)After the addition of nitrogen for three times, potassium acetate (9.34 g, 64.6 mmol) was added,The catalyst Pd (dppf) 2Cl2 (0.4 g, 0.524 mmol)Dissolved in 45mL of dioxane, nitrogen protection under 100 reaction 24hThe spin was dried to give 4.93 g of compound B in 82% yield.

References:

CN107098931,2017,A Location in patent:Paragraph 0048; 0049; 0052

61676-62-8 Synthesis