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CAS No. : | 618442-57-2 | MDL No. : | MFCD28015750 |
Formula : | C30H35B2NO4 | Boiling Point : | No data available |
Linear Structure Formula : | - | InChI Key : | BMKVLWGCSCKZTD-UHFFFAOYSA-N |
M.W : | 495.23 | Pubchem ID : | 12177223 |
Synonyms : |
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Signal Word: | Warning | Class: | |
Precautionary Statements: | P280-P305+P351+P338 | UN#: | |
Hazard Statements: | H302 | Packing Group: | |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Example 21 Preparation of a Poly(carbazole-co-phenylene) Block-Copolymer Part A Synthesis of 9-Phenyl-3,6-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9H-carbazole A 2L flask was charged with 600 mL dry THF and 3,6-dibromo-9-phenylcarbazole (60 g, 0.15 mole). This was cooled to -78° C. with an acetone-dry ice bath. n-Butyllithium (138 mL of a 2.5M solution in hexanes, 0.34 mole) was added drop-wise via syringe. The reaction was stirred for 20 minutes and then warmed to -50° C. The temperature was reduced to -78° C. and 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (64 g, 0.34 mole) added via syringe at such a rate as to maintain the temperature below -60° C. The temperature was maintained at -78° C. for two hours and then poured into an aqueous solution of ammonium acetate (90 g in 2100 mL water). The layers were phase separated and the aqueous phase extracted with methy tert-butyl ketone (2*200 mL). The combined organic phase and extracts were washed with brine (2*200 mL) and dried over magnesium sulfate. Concentration and re-crystallization of the resulting solid from acetone gave pure 9-phenyl-3,6-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9H-carbazole (PBTDC). |
Yield | Reaction Conditions | Operation in experiment |
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With ammonium acetate; In tetrahydrofuran; water; acetone; | Part B: Synthesis of 9-Phenyl-3,6-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9H-carbazole A 2 L flask was charged with 600 mL dry THF and 3,6-dibromo-9-phenylcarbazole (60 g, 0.15 mole). This was cooled to -78° C. with an acetone-dry ice bath. n-Butyllithium (138 mL of a 2.5M solution in hexanes, 0.34 mole) was added drop-wise via syringe. The reaction was stirred for 20 minutes and then warmed to -50° C. The temperature was reduced to -78° C. and 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (64 g, 0.34 mole) added via syringe at such a rate as to maintain the temperature below -60° C. The temperature was maintained at -78° C. for two hours and then poured into an aqueous solution of ammonium acetate (90 g in 2100 mL water). The layers were phase separated and the aqueous phase extracted with methyl-t-butyl ether (2*200 mL). The combined organic phase and extracts were washed with brine (2*200 mL) and dried over magnesium sulfate. Concentration and re-crystallization of the solid obtained from acetone gave pure 9-phenyl-3,6-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9H-carbazole. This compound can be used to modify the hole transport properties of for example the compound of Example 17. To do this 9-Phenyl-3,6-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9H-carbazole is used in place of 2-[9,9-dioctyl-7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9H-fluoren-2-yl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane in Example 17. |