Azo Coupling Reaction of Heterocyclic Diazo Compounds
نویسندگان
چکیده
منابع مشابه
Synthesizing amphiphilic block copolymers through macromolecular azo-coupling reaction.
This communication reports a new approach to synthesize amphiphilic block copolymers. The copolymers with well-defined structures were synthesized by macromolecular azo-coupling reaction between the diazonium salt of aniline-functionalized PEG and the polymeric blocks with a terminal suitable for the azo-coupling reaction.
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Series of elongated azo esters containing three rings with methyl moiety as one of the terminal carbon chain and various substituents R(R=H,CH3,OCH3,NO2,Cl) at the other end of the molecule have been isolated , and their structure were were characterized by H-NMR and IR as well as elemental analysis . The mesomorphic properties of these compounds were investigated via differential scanning calo...
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We examined the ability of Tp(x)M (Tp(x) = hydrotris(pyrazolyl)borate ligand; M = Cu and Ag) and IPrMCl (IPr = 1,3-bis(diisopropylphenyl)imidazol-2-ylidene; M = Cu, Ag, Au) complexes as catalyst precursors for the cross-coupling of diazo compounds. Experimental data showed that the metal centre can be tuned with the appropriate selection of the ligand to yield either the homo- or hetero-couplin...
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Inexpensive, less-toxic ZnCl2 serves as the catalyst for selective cross-coupling of enynones and diazo compounds, an unprecedented reaction pathway for zinc carbenoids. A cascade sequence comprising formal cyclization/cross-coupling leads to a variety of 2-alkenylfurans.
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ژورنال
عنوان ژورنال: The Journal of the Society of Chemical Industry, Japan
سال: 1971
ISSN: 0023-2734,2185-0860
DOI: 10.1246/nikkashi1898.74.9_1859