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US 5,856,515 AGranted
Electron-deficient porphyrins and processes and intermediates for preparing same
AssigneeThe Trustees of the University of Pennsylvania
InventorsMichael J. Therien, Stephen DiMagno
Life of this patent
Estimating the term…
Abstract
Electron-deficient porphyrins are provided, as well as processes and intermediates for their preparation. In preferred embodiments, the electron-deficient porphyrins are prepared by condensing pyrrole derivatives and removing water thus formed from the resulting reaction mixture.
Claims21
A compound having formula:
- ##STR11## wherein:
- at least one R.sub.A is a group that is electron-withdrawing relative to hydrogen;
- at least one R.sub.B is H or an acid-stable functional group;
- and
- q is 1 or 2.
2 more elements
A compound having formula:
- ##STR12## wherein at least one R.sub.A is a group that is electron-withdrawing relative to hydrogen;
- at least one R.sub.B is H or an acid-stable functional group;
- and
- n is 0, 1, or 2.
1 more element
A compound having formula:
- ##STR13## wherein:
- at least one R.sub.A is a group that is electron-withdrawing relative to hydrogen;
- at least one R.sub.B is H or an acid-stable functional group;
- and
- n is 0, 1, or 2.
2 more elements
Dependencies are inferred from the claim text.