Novel efficient preparative method for phthalocyanines from phthalimides and phthalic anhydride with HMDS.
A convenient synthesis of peripherally substituted or unsubstituted phthalocyanines having a variety of metals is described. Phthalocyanines can be obtained by heating phthalimides or phthalic anhydride with metal salts, hexamethyldisilazane, a catalytic amount of p-TsOH, and DMF at 150 degrees C.
Department of Applied Chemistry, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan. toru@ach.nitech.ac.jp
Hitoshi
H
Uchida
Paidi Yella
PY
Reddy
Shuichi
S
Nakamura
Takeshi
T
Toru