专利号:US-8569560-B2 优先权日:2006-10-13 标题 :Synthesis of terminal alkenes from internal alkenes via olefin metathesis 发明人:SCHRODI YANN; PEDERSON RICHARD L; KAIDO HIROKI; TUPY MICHAEL J 权利人:ELEVANCE RENEWABLE SCIENCES 摘要:This disclosure relates generally to olefin metathesis, and more particularly relates to the synthesis of terminal alkenes from internal alkenes using a cross-metathesis reaction catalyzed by an olefin metathesis catalyst. According to one aspect, for example, a method is provided for synthesizing a terminal olefin, the method comprising contacting, in the presence of a ruthenium alkylidene metathesis catalyst, an olefinic substrate comprised of at least one internal olefin with a cross metathesis partner comprised of an alpha olefinic reactant, under reaction conditions effective to allow cross-metathesis to occur, wherein the reaction conditions include a reaction temperature of at least 35° C. The methods, compositions, reactions and reaction systems herein disclosed have utility in the fields of catalysis, organic synthesis, and industrial chemistry.
专利号:US-8729283-B2 优先权日:2009-01-29 标 题 :Chain-selective synthesis of fuel components and chemical feedstocks 发明人:OLSON EDWIN S 权利人:ENERGY & ENVIRON RES CT FOUND 摘要:A method comprising providing a starting composition comprising a polyunsaturated fatty acid, a polyunsaturated fatty ester, a carboxylate salt of a polyunsaturated fatty acid, a polyunsaturated triglyceride, or a mixture thereof; self-metathesizing the starting composition or cross-metathesizing the starting composition with at least one short-chain olefin in the presence of a metathesis catalyst to form self-/cross-metathesis products comprising: cyclohexadiene; at least one olefin; and one or more acid-, ester-, or salt-functionalized alkene; and reacting cyclohexadiene to produce at least one cycloalkane or cycloalkane derivatives. A method for producing cycloalkanes for jet fuel by providing a starting composition comprising at least one selected from the group consisting of algal and polyunsaturated vegetable oils, subjecting the starting composition to metathesis to produce metathesis product comprising at least one olefin, cyclohexadiene, and at least one acid-, ester-, or salt-functionalized alkene, and reacting the at least one olefin and cyclohexadiene to form cycloalkane(s).
专利号:WO-2008048522-A1 优先权日:2006-10-13 标 题:Methods of making monounsaturated functionalized alkene compounds by metathesis 发明人:ABRAHAM TIMOTHY W; KAIDO HIROKI; LEE CHOON WOO; PEDERSON RICHARD L; SCHRODI YANN; TUPY MICHAEL JOHN 权利人:CARGILL INC; MATERIA INC; ABRAHAM TIMOTHY W; KAIDO HIROKI; LEE CHOON WOO; PEDERSON RICHARD L; SCHRODI YANN; TUPY MICHAEL JOHN 摘要:Described is a method of chemically modifying a starting composition comprising polyunsaturated alkene compounds in order to convert at least a portion of the polyunsaturated alkene compounds into functionalized monounsaturated alkene compounds. The separated monounsaturated alkene compounds may be useful, for example, as a starting material in the synthesis of organic chemicals such as diacids, diesters, and the like.
专利号:WO-2010123589-A2 优先权日:2009-01-29 标题:Chain-selective synthesis of fuel components and chemical feedstocks
专利号:US-8067623-B2 优先权日:2006-07-12 标 题:Ring opening cross-metathesis reaction of cyclic olefins with seed oils and the like 发明人:LEE CHOON WOO 权利人:LEE CHOON WOO; ELEVANCE RENEWABLE SCIENCES 摘要:This invention relates generally to olefin metathesis, and more particularly relates to the ring-opening, ring insertion cross-metathesis of cyclic olefins with internal olefins such as seed oils and the like. In one embodiment, a method is provided for carrying out a catalytic ring-opening cross-metathesis reaction, comprising contacting at least one olefinic substrate with at least one cyclic olefin as a cross metathesis partner, in the presence of a ruthenium alkylidene olefin metathesis catalyst under conditions effective to allow ring insertion cross metathesis whereby the cyclic olefin is simultaneously opened and inserted into the olefinic substrate. The invention has utility in the fields of catalysis, organic synthesis, and industrial chemistry.
专利号:US-2013035532-A1 优先权日:2006-10-13 标题 :Synthesis of terminal alkenes from internal alkenes via olefin metathesis