Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2005-02-01
2005-02-01
Raymond, Richard L. (Department: 1624)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
C534S015000, C534S016000
Reexamination Certificate
active
06849730
ABSTRACT:
The present invention provides methods of making porphyrins and related compounds such as chlorins by condensing suitable starting materials (e.g., a dipyrromethane-dicarbinol plus dipyrromethane) in a polar solvent in the presence of a Lewis acid. The reactions are preferably carried out in a manner that minimizes rearrangement of the reaction product.
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Geier, III G. Richard
Lindsey Jonathan S.
Yu Lianhe
Myers Bigel & Sibley & Sajovec
North Carolina State University
Raymond Richard L.
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