Double spiro material containing heteroaton and its synthetic method and use
A heteroatom, double spiro ring technology, applied in the field of heteroatom-containing double spiro ring materials and their preparation, can solve the problems of no articles and patent reports, etc.
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Embodiment 1
[0083] Embodiment 1, thiophene double spiro compound material:
[0084] Disspiro[9H-fluorene-9,1′(3′H)-bisindene[2,1-b:1′,2′-d]thiophene-3′,9″-[9H]fluorene]
[0085] Dispiro[9H-fluorene-9,1′(3′H)-diindeno[2,1-b:1′,2′-d]thiophene-3′,9″-[9H]fluorene]
[0086] 3,4-Diphenylthiophene
[0087] 3,4-diphenylthiophene
[0088] Under nitrogen atmosphere, take magnesium Mg chips (1equiv.) and a little I 2 Mix, slowly drop bromobenzene into the reaction flask at 35°C, and reflux the reaction for 20 minutes; cool the reaction and slowly transfer the formed Grignard reagent to the reaction flask containing the catalyst Ni(dppp)Cl using a transfer tube. 2 and 3,4-dibromothiophene in a reaction flask, added to reflux for 24 hours, diluted with ice water, extracted with ether, dried and rotary evaporated, and purified by petroleum ether silica gel column to obtain colorless crystals (yield 78.8%).
[0089] mp 115-116°C (lit.112-113°C);
[0090] Elemental Analysis: C 16 h 12 S, measured ...
Embodiment 2
[0108] Embodiment 2, tetrabromothiophene double spiro compound module:
[0109] 2,2",7,7"-Tetrabromo-dispiro[9H-fluorene-9,5'(7'H)-diindene[2,1-b:1',2'-d]thiophene- 7',9"-[9H]fluorene]
[0110] 2,2",7,7"-tetrabromo-dispiro[fluorene-9,5'(7'H)-diindeno[2,1-b:1',2'-d]thiophene-7',9"- fluorene]
[0111] Take 2,5-dibromo-3,4-diphenylthiophene (2.1mmol) and magnesium Mg0.1004g (4.2mmol) to react to generate Grignard reagent, and dissolve 2,7-dibromofluorenone ( 4.2mmol) was reacted at 60°C for 24 hours, a large amount of white precipitate was generated, and finally saturated color NHCl was added 4 Convert Grignard salts to alcohols. After completion of the reaction, extracted with ether, dried and rotary evaporated, and purified on a silica gel column with a mixed solvent of petroleum ether:dichloromethane (4:1) to obtain a slightly yellowish white solid tertiary alcohol (yield 34%). Dissolve the above-mentioned fluorenol in glacial acetic acid, add a few drops of concentrated ...
Embodiment 3
[0113] Embodiment 3, dibromothiophene double spiro compound module:
[0114] 2,2″-Dibromo-dispiro[9H-fluorene-9,5′(7′H)-bisindene[2,1-b:1′,2′-d]thiophene-7′,9″ -[9H]fluorene]
[0115] 2,2″-dibromo-dispiro[fluorene-9,5′(7′H)-diindeno[2,1-b:1′,2′-d]thiophene-7′,9″-fluorene]
[0116] Take 2,5-dibromo-3,4-diphenylthiophene (2.1mmol) and magnesium Mg0.1004g (4.2mmol) to react to generate Grignard reagent, and dissolve 2-bromofluorenone (4.2mmol) in 16mL tetrahydrofuran React at 60°C for 24 hours, a large amount of white precipitates are formed, and finally add saturated NHCl 4 Convert Grignard salts to alcohols. After the reaction was completed, ether was extracted, dried and rotary evaporated, and dichloromethane solvent was purified on a silica gel column to obtain a slightly pale yellow white solid tertiary alcohol (yield 35.6%). Dissolve the above-mentioned fluorenol in glacial acetic acid, add a few drops of concentrated hydrochloric acid dropwise at 110°C for 10 minutes t...
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