612-23-7Relevant articles and documents
Bambusurils Bearing Nitro Groups and Their Further Modifications
Yawer, Mirza Arfan,Sleziakova, Kristina,Pavlovec, Lukas,Sindelar, Vladimir
, p. 41 - 47 (2018/01/17)
Bambusurils are recently developed neutral anion receptors that show a high affinity towards many inorganic anions, not only in organic solvents but also in water. However, the number of water-soluble bambusurils and also those bearing functional groups is very limited. In this paper we report the synthesis of four- and six-membered bambusurils containing eight and twelve nitro groups. All the nitro groups on the bambusuril portals could be transformed into amino functions, which provided the macrocycles with water solubility and allowed their further modification. For example, we have demonstrated the conversion of amino groups on the bambusurils into the corresponding urea-functionalized bambusuril derivatives. We also report the first example of a bambusuril bearing only two functional groups, which was prepared by the condensation of two different glycolurils.
Ortho-nitro benzyl chloride by a synthetic method of preparing pyraclostrobin intermediate (by machine translation)
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Paragraph 0042, (2016/10/31)
This invention relates to a kind of the ortho-nitro benzyl chloride preparation pyraclostrobin method for synthesizing intermediate, comprising the following steps: in the ortho-nitro toluene, a catalyst is added, heating and stirring, and slowly inject chlorine, after the end of reaction, recovering O-nitro-toluene, ortho-nitro benzyl chloride obtained; the ortho-nitro benzyl chloride and 1 the [...] (the 4 [...] chlorolphenyl) - 3 the the pyrazole is mellow[...] for etherification reaction, to obtain the 2 [...] [(N -4 the [...] chlorolphenyl) - 3 the pyrazole oxygen radical[...] methyl] nitrobenzene. In this invention to replace nitryl chlorine animal pennitryl bromination animal pen and adjacent to the 1 [...] (the 4 [...] chlorolphenyl) - 3 the reaction the pyrazole is mellow[...], pyraclostrobin intermediates prepared by the 2 [...] [(N -4 the [...] chlorolphenyl) - 3 the pyrazole oxygen radical[...] methyl] nitrobenzene, avoid the use of a defect method for synthesis of O- nitryl bromination animal pen, content can be used for preparing ≥ 98%, yield ≥ 90% ether product. (by machine translation)
4-Aminophenyldiphenylphosphinite (APDPP), a new heterogeneous and acid scavenger phosphinite - Conversion of alcohols, trimethylsilyl, and tetrahydropyranyl ethers to alkyl halides with halogens or N-halosuccinimides
Iranpoor, Nasser,Firouzabadi, Habib,Gholinejad, Mohammad
, p. 1006 - 1012 (2007/10/03)
A new heterogeneous phosphinite, 4-aminophenyldiphenylphosphinite (APDPP), is prepared and used for the efficient conversion of alcohols, trimethylsilyl ethers, and tetrahydropyranyl ethers to their corresponding bromides, iodides, and chlorides in the presence of molecular halogens or N-halosuccinimides. The amino group in this phosphinite acts as an acid scavenger and removes the produced acid. A simple filtration easily removes the phosphinate by-product.
