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Novel efficient preparative method for phthalocyanines from phthalimides and phthalic anhydride with HMDS
Hitoshi Uchida1, Paidi Yella Reddy, Shuichi Nakamura
1Department of Applied Chemistry, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan. toru@ach.nitech.ac.jp
The Journal of Organic Chemistry
|October 25, 2003
Abstract:
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.