|Title||CHARACTERIZATION OF DECAMETHYL AND ETHOXYCARBONYL PENTAPHYRINS|
|Publication Type||Journal Article|
|Year of Publication||1995|
|Authors||Dansodanquah, RE, Xie, LY, Dolphin, D|
|Type of Article||Article|
|Keywords||COMPLEX, EXPANDED PORPHYRIN, macrocycles, SAPPHYRINS|
The syntheses of decamethyl- and ethoxycarbonyl-pentaphyrins are described. Their spectroscopic characterizations are presented in comparison with the permethyl derivatives of porphyrin, sapphyrin and hexaphyrin. The ethoxycarbonyl containing pentaphyrins are the only examples, amongst the expanded polypyrrolic macrocycles, that have an electron withdrawing group directly attached to the macrocyclic ring system. Elimination of a pyrrole and methine carbon unit in the mass spectrometer has been observed as a common feature for the pentaphyrin free bases as well as their metal derivatives.
|URL||<Go to ISI>://A1995TF56200017|