Synthesis of Octacarboxy Spherosilicate
2008; American Chemical Society; Volume: 130; Issue: 31 Linguagem: Inglês
10.1021/ja803513n
ISSN1943-2984
AutoresHongzhi Liu, Shinichi Kondo, Nobuhiro Takeda, Masafumi Unno,
Tópico(s)Porphyrin and Phthalocyanine Chemistry
ResumoA feasible new preparation was reported for an octacarboxylphenyl functionalized spherosilicate, octakis[(pcarboxyphenyl) dimethylsilyl]silicate, which was a versatile monomer leading to other functional spherosilicate derivatives. The synthesis was started from octakis[dimethyl(p-methylphenyl)silyl]silicate. Octakis[dimethyl(pmethylphenyl) silyl]silicate was brominated by NBS to produce octakis[dimethyl(4-tribromomethylphenyl)silyl]silicate. Finally, octakis[dimethyl(4-tribromomethylphenyl)silyl]silicate was hydrolyzed in the presence of AgNO3 and formic acid to give the desired compound. Octakis[(pcarboxyphenyl) dimethylsilyl]silicate was fully characterized by FTIR, 1H NMR, 13C NMR, 29Si NMR spectra, ESI-MS, and elemental analysis.
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