57 results about "Tetrapyrrole" patented technology

The present invention relates to a process for the carbonylation of epoxides by reacting epoxides with carbon monoxide in the presence of a two-component catalyst system, wherein the first component is one or more of cobalt, ruthenium and rhodium. A variety of metal sources, the second component is a coordination complex of tetrapyrrole compound and one or more metals belonging to IIIA and IIIB groups, lanthanides and actinides in the periodic system. The invention also relates to a process for the preparation of the catalyst system and the use of the catalyst system in the carbonylation of epoxides.

A method of making a metalloporphyrin is carried out by reacting (i) a linear tetrapyrrole, said linear tetrapyrrole having a 19-acyl group and a 1-protecting group, with (ii) a metal salt under basic conditions to produce the metalloporphyrin. Products produced by such methods and intermediates useful for carrying out such methods are also described.

A method for treating helminthic infections in a mammal or plant which entails administering one or more compounds which are metal-ligand chelate compounds containing a metal and a tetrapyrrole compound or a porphyrin compound, to mammal or plant in need thereof.

A compound having preferential localization in tumor tissue relative to normal tissue, a preferential electromagnetic absorption at a wavelength between about 660 and 900 nm, and a fluorescence at a wavelength shifted from the preferential absorption by at least +30 nm and preferably at least +50nm. The compound further preferably destroys tumor tissue in which it is absorbed when exposed to light at its preferential absorption wavelength. In a preferred embodiment of the invention, the compound is a conjugate of a tumor avid tetrapyrrole compound with a fluorescent dye, and more preferably the fluorescent dye is an indocyanine dye such as indocyanine green. The tumor avid tetrapyrrole compound is preferably a porphyrin derivative selected from the group consisting of chlorins, bacteriochlorins, purpurins and derivatives thereof.

It is intended to provide a functional molecular element having a specific conductivity, which is a functional molecular element having a structure enabling reduction in the contact resistance at the interface between a constituting molecule and an electrode, a process for producing the same and a functional moleucalr device. A n-electron conjugated molecule (1), which is one species of linear tetrapyrrole having an almost disc-shaped central skeleton (2) and a flexible side chain (3) consisting of an alkyl group, is dissolved in 4-pentyl-4'-cyanobiphenyl or tetrahydrofuran and the concentration is adjusted to an appropriate level. This solution is adhered to electrodes (5) and (6) and the solvent is evaporated. Thus, an array structure (4) of the n-electron conjugated molecule (1) is self-organizingly formed. An adsorbed molecule (9) in the first layer of the array structure (4) is fixed in such a manner that its side chain (3) is adsorbed on the surface of the electrode (5) or (6) while the almost disc-shaped face of the sekeleton (2) is adhered in parallel to the surface of the electrode (5) or (6). The stacking direction of the n-electron conjugated molecule (1) in the second layer and thereafter of the array structure (4) is regulated by the n-n interaction between the disc-shaped face of the sekeletons (2).

A compound having preferential localization in tumor tissue relative to normal tissue, a preferential electromagnetic absorption at a wavelength between about 660 and 900 nm, and a fluorescence at a wavelength shifted from the preferential absorption by at least +30 nm and preferably at least +50 nm. The compound further preferably destroys tumor tissue in which it is absorbed when exposed to light at its preferential absorption wavelength. In a preferred embodiment of the invention, the compound is a conjugate of a tumor avid tetrapyrrole compound with a fluorescent dye, and more preferably the fluorescent dye is an indocyanine dye such as indocyanine green. The tumor avid tetrapyrrole compound is preferably a porphyrin derivative selected from the group consisting of chlorins, bacteriochlorins, purpurins and derivatives thereof.