1633-22-3Relevant articles and documents
Organic nanocrystals of [2.2]paracyclophanes achieved via sonochemistry: Enhanced and red-shifted emission involving edge-to-face chromophores
Elacqua, Elizabeth,Jurgens, Paul T.,Baltrusaitis, Jonas,MacGillivray, Leonard R.
, p. 7567 - 7571 (2012)
We have prepared organic nanocrystals of [2.2]paracyclophane (pCp) and tetrakis(4-pyridylcyclobutyl)[2.2]paracyclophane (tpcp) via sonochemistry. Both nanocrystals exhibit an enhanced fluorescence compared to dilute solution, while the tpcp nanocrystals also demonstrate a red-shifted fluorescence.
SYNTHESIS OF CYCLOPHANES BY PHOTODESELENATIVE RINGCONTRACTION
Higuchi, Hiroyuki,Kugimiya, Masao,Otsubo, Tetsuo,Sakata, Yoshiteru,Misumi, Soichi
, p. 2593 - 2594 (1983)
Several cyclophanes were prepared by photodeselenation of diselenacyclophanes with hexamethylphosphorous triamide in excellent yields, compared with the other chalcogen-atom extrusion methods.
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Farthing
, p. 3261,3262 (1953)
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A NEW SYNTHETIC METHOD OF CYCLOPHANES
Takemura, Hiroyuki,Shinmyozu, Teruo,Inazu, Takahiko
, p. 1031 - 1032 (1988)
Diazacyclophanes were converted to the correspondingcyclophanes via their N-nitroso derivatives by reductive extrusion of nitrogens.This reaction is simple, clean and mild, and may be an alternative synthetic way of cyclophanes.
Kaplan,Truesdale
, p. 3665 (1976)
A NEW AND FACILE ROUTE FROM A THIAPHANE TO A CYCLOPHANE VIA IRON PENTACARBONYL
Koray, Ali R.
, p. 191 - 194 (1983)
2,11-Dithiaparacyclophane is converted into -paracyclophane in 62percent yield by treatment with Fe(CO)5 in refluxing toluene.
Preparation method of parylene
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Paragraph 0046-0048; 0051-0052, (2021/04/03)
The invention discloses a preparation method of parylene. The method comprises the steps: carrying out a reaction on a compound 1A to obtain a compound 2A; and reacting the compound 2A with a compound2B to obtain a parylene crude product, and purifying the parylene crude product to obtain a parylene fine product. According to the method, the reagent with lower price is used as a starting raw material, the final product is obtained through two-step reaction, the reaction condition of each step is mild, the yield of the obtained parylene is high, and the cost can be greatly reduced.
The synthesis of planar chiral pseudo-gem aminophosphine pre-ligands based on [2.2]paracyclophane
Jayasundera, Krishanthi P.,Engels, Tim G. W.,Lun, David J.,Mungalpara, Maulik N.,Plieger, Paul G.,Rowlands, Gareth J.
, p. 8975 - 8984 (2017/11/09)
The synthesis of three planar chiral pseudo-gem disubstituted [2.2]paracyclophane-derived P,N-pre-ligands is reported along with preliminary results of their activity in the amination of aryl bromides and chlorides. The pseudo-gem aminophosphines were capable of mediating the coupling reaction at a loading of 1 mol%.
A resolution method for 4-amino-12-bromo[2.2]paracyclophane
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Paragraph 0052; 0054, (2017/09/26)
A resolution method for 4-amino-12-bromo[2.2]paracyclophane is provided. L-proline protected by t-butyloxycarbonyl and racemic 4-amino-12-bromo[2.2]paracyclophane are reacted to generate a mixture of intermediates having configurations of (Rp, S) and (Sp, S). By utilizing a physical property difference (polar difference) of the intermediates having configurations of (Rp, S) and (Sp, S), the intermediates are separated by utilizing column chromatography, then recrystallization is performed for purification, and acidolysis is performed to obtain optically pure Sp-4-amino-12-bromo[2.2]paracyclophane and Rp-4-amino-12-bromo[2.2]paracyclophane. A resolution agent used in the method is cheap and nontoxic, resolution operation steps are simple, and high yields and good optical purities can be achieved, so that the method is suitable for large-scale preparation of the optically pure 4-amino-12-bromo[2.2]paracyclophane.