CAS: 301224-40-8; (1,3-Dimesitylimidazolidin-2-Ylidene)(2-Isopropoxybenzylidene)Ruthenium(Vi) Chloride

专利信息

专利号:US-11542269-B2
优先权日:2018-01-03
标 题:Prins reaction and compounds useful in the synthesis of halichondrin macrolides and analogs thereof
发明人：CHOI HYEONG-WOOK; FANG FRANCIS G
权利人:EISAI R&D MAN CO LTD
摘要:The invention provides methods utilizing Prins reaction in the preparation of compounds that may be useful as intermediates in the synthesis of halichondrin macrolides and analogs thereof. The invention also provides compounds that may be useful as intermediates in the synthesis of a halichondrin macrolides and methods for preparing the same.

专利号:US-2014194584-A1
优先权日:2013-01-07
标题 :Process for the synthesis of w-Unsaturated nitrile-acid/ester in which two types of cross metathesis are alternated consecutively swing process
发明人：DUBOIS JEAN-LUC; COUTURIER JEAN-LUC
权利人:ARKEMA FRANCE
摘要:The invention relates to a process for the synthesis of a monounsaturated nitrile-ester (acid) by cross metathesis starting from an unsaturated compound I comprising at least one trivalent nitrile, acid or ester functional group, characterized in that it comprises a stage in which two types of cross metathesis are alternated consecutively:n a first type of cross metathesis cm1 with an acrylic compound II chosen from acrylonitrile, acrylic acid or an acrylic ester, one of the compounds I or II comprising a nitrile functional group and the other of these compounds II or I comprising an acid or ester functional group, and a second type of cross metathesis cm2 with a light C 2 to C 4 alkene compound III, preferably with ethylene. nn The invention also relates to a process for the synthesis of an α,ω-amino ester (acid) obtained by a process comprising a stage in which the two types of cross metathesis defined above are alternated consecutively, followed by a hydrogenation stage.

专利号:WO-2009152051-A1
优先权日:2008-06-12
标题:Synthesis of a macrocyclic hcv protease inhibitor
发明人：WANG PENG
权利人:PHENOMIX CORP; WANG PENG
摘要:The present invention provides a method of synthesis of a macrocyclic compound known as a potent inhibitor of a protease produced by the hepatitis C virus (HCV). Inhibition of the viral protease blocks assembly of mature viral particles in an infected mammalian host. The method of synthesis involves a ring-closing metathesis step using a ruthenium catalyst. Hydrogenation and boronate deprotection provide the HCV protease-inhibitory product.

专利号:US-9382189-B2
优先权日:2013-02-08
标题:Synthesis of a branched unsaturated compound by means of cross metathesis
发明人：DUBOIS JEAN-LUC; COUTURIER JEAN-LUC
权利人:ARKEMA FRANCE
摘要:The invention relates to a method for the synthesis of a branched unsaturated fatty compound, said method comprising the metathesis, in the presence of a metathesis catalyst, of a linear unsaturated fatty compound and a branched olefin. The branched unsaturated fatty compound is used in particular for the production of at least one of the following products: dielectric fluids, specialty surfactants, emulsifiers, frictions agents, antistatic additives, antifogging additives, mould release agents, pigment dispersants, high-performance lubricants, waxes and wax emulsifiers, polymer conversion additives, PVC stabilizing agents, inks, resins, paints, varnishes, solvents, lipsticks, creams for the skin, deodorants, particularly stick deodorants, hair dyes, shampoos and other liquid soaps, shaving foam, laundry detergents, cleaning agents, fabric softeners, and mixtures of same.

专利号:US-8642792-B2
优先权日:2007-02-15
标题 :Method for the synthesis of omega-amino-alkanoic acids
发明人：DUBOIS JEAN-LUC
权利人:DUBOIS JEAN-LUC; ARKEMA FRANCE
摘要:The invention relates to a method for the synthesis of amino acids/esters of general formula NH 2 —(CH 2 ) n —COOR in which n is an integer between 5 and 14, and R is either H or an alkyl radical including from 1 to 4 carbon atoms, from natural long-chain mono-unsaturated fatty acids or esters including at least 10 adjacent carbon atoms per molecule, said method comprising: first converting, if necessary, said natural long-chain fatty acid or ester into a monounsaturated fatty acid/ester of general formula R 1 —(CH 2 ) m —CHâ• CH—(CH 2 ) p —COOR in which R 1 is H, CH 3 or a COOR radical, m is an integer between 0 and 14 and p is an integer between 2 and 11, then submitting the latter to a crossed catalytic metathesis reaction with a compound of formula R 2 —CHâ• CH—R 3 in which R 2 is either H or CN and R 3 is CN or CH 2 NH 2 , provided that if R 2 is CN, R 3 can be only CN, and finally converting the resulting product of the general formula R 3 —CHâ• CH—(CH 2 ) p —COOR into an amino-acid, either by hydrogenation, or by hydrogenation of the trple terminal bond, or by amination of the double terminal bond.

专利号:EP-2198036-B1
优先权日:2007-09-20
标 题:Method for the synthesis of omega-unsaturated fatty acids
发明人：DUBOIS JEAN-LUC
权利人:ARKEMA FRANCE
摘要:The invention relates to a method for the synthesis of short-chain ω-unsaturated fatty acids of general formula CH2â• CH—(CH2)n—COOR in which n is an integer between 2 and 11 and R is H or an alkyl radical containing from 1 to 4 carbon atoms, from long-chain monounsaturated fatty acids or esters of formula CH3—(CH2)m—CHâ• CH—(CH2)p—COOR in which m and p are integers, either identical or different, between 2 and 11, such that the molecule contains at least 10 adjacent carbon atoms in the main chain, said method comprises the first step of submitting the long-chain monounsaturated fatty acid charge to an oxidation by fermentation using a microorganism containing enzymes of oxygenase type, thus leading to the formation of α,ω-diacids, and then a second step of subjecting the product from the first step to a catalytic metsthesis crossed with ethylene for forming two short-chain ω-unsaturated fatty acids having a main chain length relative to that of the starting unsaturated fatty acid or ester of beteen 0.2 and 0.8, and preferably 0.35 and 0.75.