Chemistry Reference
In-Depth Information
SCHEME 2.13
Synthesis of dendron-rod molecules.
and
was activated with 1.10 equiv. of thionyl chloride in NMP at
0
C for 10min in NMP to generate the corresponding benzyl chloride
29
.G1dendron
30
31
in situ.
was conducted at 120
C for 5 h. The desired G2
Followed by condensation with
29
dendron
32
was purified by reprecipitation to remove G1 dendron
30
, and obtained
in 80% yield as a white powder. G3 dendron
33
, G4 dendron
34
, and G4 dendrimer
35
were prepared by the same method and purified by reprecipitation in 82, 73, and
73% yield, respectively. This novel route enables the final G4 dendrimer
35
to be
formed only achieving five processes.
