专利号:US-2009318592-A1 优先权日:2005-10-11 标 题 :Process for the Synthesis of Amine Ethers 发明人:FREY MARKUS; BROENNIMANN VALERIE 权利人:CIBA GEIGY CORP 摘要:The present invention relates to novel processes for the preparation of a sterically hindered amine ether by reacting a corresponding sterically hindered amine oxide with a ketone or an aldehyde with at least one reactive H in the presence of a peroxydisulphate. Products obtained by this process may be hydrogenated. The compounds made by these processes are particularly effective in the stabilization of polymer compositions against harmful effects of light, oxygen and/or heat and as flame-retardants for polymers.
专利号:WO-2009047354-A1 优先权日:2007-10-12 标题:Chemo-enzymatic synthesis of a c-terminal thioester of an amino acid or a peptide 发明人:QUAEDFLIEG PETER JAN LEONARD MARIO; MERKX NICOLAAS SEBASTIAAN MICHEL 权利人:DSM IP ASSETS BV; QUAEDFLIEG PETER JAN LEONARD M; MERKX NICOLAAS SEBASTIAAN MICH 摘要:The present invention relates to a method for synthesising a C-terminal thioester of an N-protected amino acid or an optionally N-protected oligopeptide, comprising reacting a thiol with a compound selected from optionally N-protected amino acids, amino acid C-terminal esters (other than the ester to be synthesised) and optionally N-protected oligopeptide C-terminal esters (other than the ester to be synthesised) in the presence of a hydrolytic enzyme, thereby forming the thioester.
专利号:US-2007191516-A1 优先权日:2004-03-15 标题 :Process for the synthesis of amine ethers 发明人:FREY MARKUS; RAST VALERIE; BRAIG ADALBERT; KRAMER ANDREAS 权利人:FREY MARKUS; RAST VALERIE; BRAIG ADALBERT; KRAMER ANDREAS 摘要:A process for the preparation of a sterically hindered amine ether which comprises reacting a corresponding sterically hindered aminoxide with a C 5 -C 18 alk-1-ene in the presence of an organic hydroperoxide and optionally hydrogenating the resulting product as well as the product mixtures obtained therewith and their use as stabilizers and flame retardants.
专利号:US-2005080260-A1 优先权日:2003-04-22 标 题 :Preparation of prodrugs for selective drug delivery 发明人:MILLS RANDELL L; WU GUO-ZHANG 摘要:Synthesis of a chemical compound having the formula A-B-C that may serve for applications such as drug delivery where A is a chemiluminescent, moiety, B is a photochromic moiety, and C is a biologically active moiety where A-B-C may serve as a prodrug. Novel synthetic methods of the present invention to form the prodrug comprised the steps of (1) forming a benzophenone, (2) forming a diaryl ethylene, (3) attaching a phthalimide moiety to at least one of the aryl groups of the ethylene to form a phthalimide-ethylene conjugate, (4) condensing two ethylene-phthalimide conjugates to form a phthalimide-pentadiene conjugate, (5) converting the phthalimide to the phthalhydrazide by reaction with hydrazine to form a carrier compound according to the present invention, and (6) reacting the carrier compound with an nucleophilic moiety of the drug to form the corresponding prodrug. Alternatively the carrier can be prepared by using the halo-substituted diaryl ethylene to make the corresponding cationic leuco dye-like compound with known methods. The cationic compound then is protected by reacting with a nucleophile and coupled with the aminophathalimide by palladium-catalyzed amination to form the protected phthalimide-pentadiene conjugate. The latter is refluxed with hydrazine to convert its phthalimide to the phthalhydrazide and acidified to give the carrier. An additional aspect of the present invention relates to the use of these compounds as antiviral agents for the treatment of viral infections such as HIV and as anticancer agents for the treatment of cancers such as bowel, lung, and breast cancer.
专利号:US-3943142-A 优先权日:1969-01-24 标 题:Dye intermediates and their preparation and use in the synthesis of methine dyes 发明人:OWEN JOHN R 权利人:EASTMAN KODAK CO 摘要:Compositions of matter are provided comprising a stable, non-vaporous monomeric methylene base selected from a 2-methylenethiazoline; a 2-methylenebenzothiazoline; a 2-methylenenaphthothiazoline; a 2-methylenebenzoselenazoline; and a 2-methylenenaphthoselenazoline. The compositions of the invention are prepared by reacting the parent 2-methyl quaternary salt with a non-hydroxylic base which removes a proton of the heterocyclic salt together with a proton acceptor which inhibits build-up of the hydro salt of the non-hydroxylic base, the reaction being conducted under anhydrous conditions in a non-hydroxylic liquid in which the heterocyclic quaternary salt is sufficiently insoluble to inhibit dimer formation. The compositions of the invention are employed in the preparation of methine dyes.
专利号:US-11406964-B2 优先权日:2018-03-28 标题 :Heterogeneous catalysts for the synthesis of carbamates 发明人:WERSHOFEN STEFAN; VIDAL-FERRAN ANTON; RICO JOSÉ LUIS NÚÑEZ; PEREZ-RAMIREZ JAVIER; PUERTOLAS LACAMBRA BEGONA; AMRUTE AMOL P 权利人:COVESTRO INTELLECTUAL PROPERTY GMBH & CO KG 摘要:The present invention relates to a catalyst for preparing carbamates, in particular aromatic carbamates, comprising a binary oxide having the formula L1-xMxO2, wherein L is a metal selected from the lanthanoid series and M is a metal selected from the group consisting of Sc, Y, Ti, Zr, Hf, metals from the lanthanoid series and metals from the actinoid series, and wherein x ranges from 0.01 to 0.05. The present invention also relates to a method for producing said catalysts and a method of utilizing said catalysts in the production of carbamates, in particular aromatic carbamates.
参考标题:Synthesis Of Benzidine Derivatives Via Fecl3.6H2O-Promoted Oxidative Coupling Of Anilines 作者:Xuege Ling,Yan Xiong,Ruofeng Huang,Xiaohui Zhang,Shuting Zhang,Changguo Chen |发布日期:2013.6.7 摘要:Under Open-Flask Conditions In The Presence Of Commercially Available Fecl3.6H2O, N,N-Disubstituted Anilines Can Be Converted Into Diversely Functionalized Benzidines With Yields Of Up To 99%. Oxidative Coupling Was Extended To N-Monosubstituted Anilines, And The Method Was Applied To The Efficient Preparation Of 6,6′-Biquinoline. Mechanistic Investigations Have Also Been Performed To Explain The Observed
合成参考文献
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