Patent application number | Description | Published |
20110015430 | CATALYSTS AND PROCESSES FOR THE FORMATION OF TERMINAL OLEFINS BY ETHENOLYSIS - The present invention relates generally to catalysts and processes for the formation of terminal olefin(s) from internal olefin(s) via ethenolysis reactions. The ethenolysis reactions may proceed with high conversion, high turnover, and/or high selectivity. | 01-20-2011 |
20110065915 | CATALYSTS FOR METATHESIS REACTIONS INCLUDING ENANTIOSELECTIVE OLEFIN METATHESIS, AND RELATED METHODS - The present invention provides compositions comprising metal complexes, and related methods. In some embodiments, metal complexes of the invention may be useful as catalysts for chemical reactions, including metathesis reactions, wherein the catalysts exhibit enhanced activity and stereoselectivity. In some embodiments, the invention may advantageously provide metal complexes comprising a stereogenic metal atom. Such metal complexes may be useful in enantioselective catalysis. | 03-17-2011 |
20110237815 | OLEFIN METATHESIS CATALYSTS AND RELATED METHODS - The present invention provides methods for the synthesis of catalysts and precursors thereof. Methods of the invention may comprise combining a catalyst precursor and at least one ligand to generate a catalytically active species, often under mild conditions and in high yields. In some cases, a wide variety of catalysts may be synthesized from a single catalyst precursor. Methods of the invention may also include the preparation of catalysts which, under reaction conditions known in the art, may have been difficult or impossible to prepare and/or isolate due to, for example, steric crowding at the metal center. The present invention also provides catalyst compositions, and precursors thereof, which may be useful in various chemical reactions including olefin metathesis. In some cases, methods of the invention may reduce the number of synthetic and purification steps required to produce catalysts and/or other reaction products, as well as reducing time, cost, and waste production. | 09-29-2011 |
20110245477 | EFFICIENT METHODS FOR Z- OR CIS-SELECTIVE CROSS-METATHESIS - The present invention generally relates to methods for performing metathesis reactions, including cross-metathesis reactions. Methods described herein exhibit enhanced activity and stereoselectivity, relative to known methods, and are useful in the synthesis of a large assortment of biologically and therapeutically significant agents. | 10-06-2011 |
20120302710 | COMPLEXES FOR USE IN METATHESIS REACTIONS - The present invention relates generally to metal complexes, methods for preparation and uses of the same. | 11-29-2012 |
20120323000 | Z-SELECTIVE RING-CLOSING METATHESIS REACTIONS - The present invention relates generally to olefin metathesis. In some embodiments, the present invention provides methods for Z-selective ring-closing metathesis. | 12-20-2012 |
20130274482 | HIGHLY Z-SELECTIVE OLEFINS METATHESIS - The present invention relates generally to catalysts and processes for the Z-selective formation of internal olefin(s) from terminal olefin(s) via homo-metathesis reactions. | 10-17-2013 |
20130281706 | OLEFIN METATHESIS CATALYSTS AND RELATED METHODS - The present invention provides methods for the synthesis of catalysts and precursors thereof. Methods of the invention may comprise combining a catalyst precursor and at least one ligand to generate a catalytically active species, often under mild conditions and in high yields. In some cases, a wide variety of catalysts may be synthesized from a single catalyst precursor. Methods of the invention may also include the preparation of catalysts which, under reaction conditions known in the art, may have been difficult or impossible to prepare and/or isolate due to, for example, steric crowding at the metal center. The present invention also provides catalyst compositions, and precursors thereof, which may be useful in various chemical reactions including olefin metathesis. In some cases, methods of the invention may reduce the number of synthetic and purification steps required to produce catalysts and/or other reaction products, as well as reducing time, cost, and waste production. | 10-24-2013 |
20150065723 | OLEFIN METATHESIS CATALYSTS AND RELATED METHODS - The present invention provides methods for the synthesis of catalysts and precursors thereof. Methods of the invention may comprise combining a catalyst precursor and at least one ligand to generate a catalytically active species, often under mild conditions and in high yields. In some cases, a wide variety of catalysts may be synthesized from a single catalyst precursor. Methods of the invention may also include the preparation of catalysts which, under reaction conditions known in the art, may have been difficult or impossible to prepare and/or isolate due to, for example, steric crowding at the metal center. The present invention also provides catalyst compositions, and precursors thereof, which may be useful in various chemical reactions including olefin metathesis. In some cases, methods of the invention may reduce the number of synthetic and purification steps required to produce catalysts and/or other reaction products, as well as reducing time, cost, and waste production. | 03-05-2015 |