Efficient synthesis of poly(phenylazomethine) dendrons allowing access to higher generation dendrimers.
We have developed a novel synthetic method of phenylazomethine dendrons that uses 4,4'-methylenedianiline instead of 4,4'-diaminobenzophenone to synthesize the precursor of the phenylazomethine dendron and then oxidized the precursor to the next-generation dendron. For this method, the productivity of the dendrons has been significantly increased. Furthermore, as the synthesis of high-generation dendrons becomes easier, synthesis of DPA G5 was achieved. [structure--see text]
Takanashi
Kensaku
K
Department of Chemistry, Faculty of Science & Technology, Keio University, Yokohama 223-8522, Japan.
Chiba
Hiroshi
H
Higuchi
Masayoshi
M
Yamamoto
Kimihisa
K