Novel phenylazomethine dendrimers: Synthesis and structural properties

被引：60

作者：

Higuchi, M ^{[1
]}

Shiki, S ^{[1
]}

Yamamoto, K ^{[1
]}

机构：

[1] Keio Univ, Fac Sci & Technol, Dept Chem, Yokohama, Kanagawa 2238522, Japan

来源：

ORGANIC LETTERS | 2000年 / 2卷 / 20期

关键词：

D O I：

10.1021/ol006241t

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

[GRAPHICS] The novel dendrimers consisting of a pi-conjugated backbone, the dendritic polyphenylazomethines (DPAs), were synthesized by the convergent method via the dehydration of aromatic ketones with aromatic amines in the presence of titanium(IV) tetrachloride. The obtained DPAs have a high solubility unlike the conventional linear polyphenylazomethines. NMR studies revealed the conformational rigidity of DPA G4. DPAs having many azomethine groups as the coordination site for metal ions are expected to be novel ligands.

引用

页码：3079 / 3082

页数：4

共 16 条

[1] Poly(amidoamine) dendrimer-templated nanocomposites. 1. Synthesis of zerovalent copper nanoclusters [J].

Balogh, L ;

Tomalia, DA .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1998, 120 (29) :7355-7356

[2] Polyphenylene nanostructures [J].

Berresheim, AJ ;

Müller, M ;

Müllen, K .

CHEMICAL REVIEWS, 1999, 99 (07) :1747-1785

[3] A simple orthogonal approach to poly(phenylenevinylene) dendrimers [J].

Deb, SK ;

Maddux, TM ;

Yu, LP .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1997, 119 (38) :9079-9080

[4] Energy transfer in dendritic macromolecules: Molecular size effects and the role of an energy gradient [J].

Devadoss, C ;

Bharathi, P ;

Moore, JS .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1996, 118 (40) :9635-9644

[5] An alternative synthetic approach toward dendritic macromolecules:: Novel benzene-core dendrimers via alkyne cyclotrimerization [J].

Hecht, S ;

Fréchet, JMJ .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1999, 121 (16) :4084-4085

[6] Novel cyclic molecules: Selective synthesis of cyclic phenylazomethines [J].

Higuchi, M ;

Yamamoto, K .

ORGANIC LETTERS, 1999, 1 (12) :1881-1883

[7] ENCAPSULATION OF GUEST MOLECULES INTO A DENDRITIC BOX [J].

JANSEN, JFGA ;

DEBRABANDERVANDENBERG, EMM ;

MEIJER, EW .

SCIENCE, 1994, 266 (5188) :1226-1229

[8] Photoisomerization in dendrimers by harvesting of low-energy photons [J].

Jiang, DL ;

Aida, T .

NATURE, 1997, 388 (6641) :454-456

[9]

KAUFMAN LG, 1970, POLYM PREPR AM CHEM, V11, P250

[10]

Meier H, 1998, ANGEW CHEM INT EDIT, V37, P643, DOI 10.1002/(SICI)1521-3773(19980316)37:5<643::AID-ANIE643>3.0.CO

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