Crystal Engineering on Organic Pigments
Crystal Engineering on Organic Pigments
Crystal Engineering on Organic Pigments
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Polymorphism of Pigment Red 53:2<br />
Na + salt<br />
�<br />
�<br />
�<br />
� (Na + salt)<br />
� (+ � + Na salt)<br />
��(+ �)<br />
+ CaCl 2<br />
iso-butanole<br />
chlorobenzene<br />
recryst. from<br />
DMAc / H 2 O<br />
ethanole<br />
DMSO<br />
1-butanole<br />
acetophen<strong>on</strong>e<br />
�<br />
DMSO<br />
morpholene<br />
�<br />
�<br />
acet<strong>on</strong>e<br />
synthesis<br />
from K + salt<br />
glycole<br />
glycolic acid<br />
butylester<br />
NMF / H2O DMF<br />
recryst. from<br />
NMF / H2O (Susp.)<br />
�<br />
�<br />
*<br />
� (+�)<br />
� (+�)<br />
�<br />
�<br />
*<br />
� (K + salt)<br />
*<br />
* Solvent c<strong>on</strong>taining<br />
M.U. Schmidt, H.-J. Metz, EP 965616 A1 (1999)<br />
M.U. Schmidt, H.-J. Metz, EP 965617 A1 (1999)<br />
M.U. Schmidt, EP 1010732 A1 (1999) 15 (pseudo-) polymorphic phases<br />
*
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