Molecular recognition of pyrazine N,N′-dioxide using aryl extended calix[4]pyrroles
نویسندگان
چکیده
منابع مشابه
Catalytic conversion of aryl triazenes into aryl sulfonamides using sulfur dioxide as the sulfonyl source.
Various sulfonamides have been synthesized from triazenes and sulfur dioxide. In the presence of just a catalytic amount of BF3·OEt2, a series of 1-aryl-triazenes were converted into sulfonyl hydrazines in good to excellent yields. When using CuCl2 as the catalyst, the corresponding sulfonamides can be produced from the 1-aryl triazenes in good yields.
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The crystal structure of the title compound, [Cu(H2O)6](BF4)2·3C4H4N2O2, comprises discrete [Cu(H2O)6](2+) cations and BF4 (-) anions along with three equivalents of pyrazine 1,4-dioxide (pzdo). The hexa-aqua-copper(II) ion and all three pzdo mol-ecules lie about crystallographic inversion centers. The lattice is supported by an extensive hydrogen-bonding network. O-H⋯O hydrogen bonding between...
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متن کاملCrystal structure of di-μ-aqua-μ-(pyrazine N,N′-dioxide)-κ2 O:O-bis(diaquasodium) tetraphenylborate dihydrate pyrazine N,N′-dioxide monosolvate
The search for novel lanthanide coordination networks using pyrazine N,N'-dioxide (pzdo, C4H4N2O2) as a structure-directing unit, led to the synthesis and the structure determination of the title compound, [Na2(C4H4N2O2)(H2O)6][B(C6H5)4]2·C4H4N2O2·2H2O. The crystal structure is comprised of discrete [{Na(H2O)2}2(μ-H2O)2(μ-pzdo)](2+) cations and tetra-phenyl-borate anions, as well as pzdo and H2...
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ژورنال
عنوان ژورنال: Chemical Science
سال: 2020
ISSN: 2041-6520,2041-6539
DOI: 10.1039/d0sc01496f