VERBIO Vereinigte BioEnergie has filed a patent for Schrock-alkylidene complexes with a phenanthroline ligand. These complexes can dissociate in a solvent and release a catalytically active complex for olefinic metathesis reactions without the need for a Lewis acid like zinc chloride. This makes the phenanthroline complexes autoactivating. GlobalData’s report on VERBIO Vereinigte BioEnergie gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData's company profile on VERBIO Vereinigte BioEnergie, biochemical H2 synthesis was a key innovation area identified from patents. VERBIO Vereinigte BioEnergie's grant share as of June 2023 was 1%. Grant share is based on the ratio of number of grants to total number of patents.

Schrock-alkylidene complexes with autoactivating phenanthroline ligands

Source: United States Patent and Trademark Office (USPTO). Credit: VERBIO Vereinigte BioEnergie AG

A recently filed patent (Publication Number: US20230203072A1) describes a complex of formula I, which is characterized by a stability constant K with respect to the neutral ligand in a solvent. The substitution pattern of the complex can be adjusted to achieve a stability constant K within a range of 5 L*mol-1 to 250,000 L*mol-1 when measured at 298 K. The patent claims also specify the characteristics of various components of the complex, such as R1, B, R2, R3, and R4, which can be selected from specific groups or patterns to achieve the desired stability constant.

The patent further describes methods of making the complex, including subjecting a complex of formula II to certain processes to obtain the complex of formula I in solid form. The complex of formula I can be isolated through filtration or by evaporating the solvent. The patent also mentions a system comprising the complex of formula I and the complex of formula II dissolved in the solvent, without the presence of a Lewis acid.

Additionally, the patent discusses methods of making the complex of formula II by dissolving the complex of formula I in the solvent, again without the presence of a Lewis acid. The patent also describes a method of performing a metathesis reaction using the complex of formula I, where the complex is added to a compound with an olefinic double bond in the presence of the solvent.

Overall, the patent claims focus on the design and characteristics of a complex of formula I, its methods of production, and its applications in metathesis reactions. The patent provides specific details on the substitution patterns and stability constants that can be achieved, as well as the methods of isolating the complex and performing reactions using it.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies