CAS: 3087-36-3; Ethanolate,Titanium(4+)

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专利信息

专利号:US-11639349-B2
优先权日:2020-05-28
标题:Stereoselective synthesis of intermediate for preparation of heterocyclic compound
发明人：CHEN WEN-CHANG; HSU HAN-PEI; CHOU SHAN-YEN; CHUANG SHIH-CHIEH; YEN CHI-FENG
权利人:TAI GEN BIOTECHNOLOGY CO LTD; TAIGEN BIOPHARMACEUTICALS CO BEIJING LTD; TAIGEN BIOTECHNOLOGY CO LTD
摘要:Provided is a stereoselective synthesis of an intermediate for the preparation of the heterocyclic derivative as a Cap-dependent endonuclease inhibitor. The synthesis process has the advantages of simple operation, higher yield and relatively controllable steroselectivity, such that it is suitable for large-scale production.

专利号:US-8067633-B2
优先权日:2006-12-05
标 题:Method for the synthesis of (meth)acrylic esters catalysed by a polyol titanate
发明人：PAUL JEAN-MICHEL
权利人:PAUL JEAN-MICHEL; ARKEMA FRANCE
摘要:The subject of the invention is a method for the synthesis of (meth)acrylic esters by transesterification in the presence of a catalyst corresponding to the formula [(R′O) 3 Ti] x R″ in which R′ is a linear or branched alkyl radical having from 2 to 8 carbon atoms which may contain heteroatoms or R′ is a phenyl radical, R′ is a polyfunctional radical, originating from a polyol R′(OH) x comprising x alcohol functional groups and x is an integer ranging from 2 to 6. The method according to the invention is particularly well suited to the synthesis of dialkylaminoalkyl (meth)acrylates from methyl (meth)acrylate and a dialkylaminoalcohol.

专利号:US-10611864-B2
优先权日:2015-09-22
标 题:Synthesis of substituted amidobenzoate compounds, the compounds obtained and the use thereof as phthalate free internal electron donor for polymerization of olefins
发明人：ZUIDEVELD MARTIN ALEXANDER; SAINANI JAIPRAKASH BRIJLAL; AL-HUMAIDAN OSAMAH; PADMANABHAN SUDHAKAR R; SHINGE PRASHANT SUKUMAR; SHETTY SHARANKUMAR G; SHAIKH ABBAS-ALLI GHUDUBHAI
权利人:SABIC GLOBAL TECHNOLOGIES BV
摘要:The present invention relates to a compound according to Formula (I) wherein R 1 is a hydrocarbyl group selected from the group consisting of alkyl, alkenyl, aryl, aralkyl, and alkylaryl groups, and one or more combinations thereof; wherein R 2 is a hydrogen atom, an aryl group or an alkyl group; and wherein R 3 , R 4 , R 5 and R 6 , are the same or different and are each independently a hydrogen atom, a halogen atom, a cyano group, an amino group, a hydrocarbyl group selected from the group consisting of alkyl, alkenyl, aryl, aralkyl, and alkylaryl groups or an alkoxy group, and one or more combinations thereof as internal electron donor and to a process for the synthesis of a compound according to Formula (I), wherein R 1 is a hydrocarbyl group selected from the group consisting of alkyl, alkenyl, aryl, aralkyl, alkoxycarbonyl and alkylaryl groups, and one or more combinations thereof; wherein R 2 is a hydrogen atom or an alkyl group; wherein R 3 , R 4 , R 5 and R 6 , are the same or different and are each independently selected from a group consisting of a hydrogen atom; a hydrocarbyl, preferably, said process comprising the step of reacting a compound according to Formula (II) [R 1 —C(â• O)Cl] with a compound according to Formula (III) to obtain the compound according to Formula (I) and to the use of these compounds as internal donor in Ziegler-Natta catalysis of lefins.

专利号:US-9593183-B2
优先权日:2012-11-23
标 题 :Preparation method of catalyst for polymerization of polyolefin and process for polymerization of polyolefin using the same
发明人：CHAE BYUNG HUN; LIM SEONG SOO; JOO CHEON IK; LEE JUNG YEOP; JIN SOOK YOUNG
权利人:LOTTE CHEMICAL CORP
摘要:This disclosure relates to a method for preparing a catalyst for synthesis of a polyolefin and a process for synthesis of a polyolefin using the same. More particularly, this disclosure relates to a method for preparing a catalyst for synthesis of a polyolefin including: reacting a magnesium compound with an alkane diol having a carbon number of 3 to 15 unsubstituted or substituted with an alkyl group having a carbon number of 1 to 5, and a benzoyl halide compound to prepare a magnesium compound solution; reacting the magnesium compound solution with a first transition metal compound to prepare a support; and reacting the support with a second transition metal compound to produce a solid catalyst, and a process for synthesis of a polyolefin using the same.

专利号:US-2022098155-A1
优先权日:2018-11-14
标 题 :Novel pathway for the synthesis of diazirines, that may or may not be enriched in nitrogen-15
发明人：REBOUL VINCENT; FRANCK XAVIER; GLACHET THOMAS; MARZAG HAMID
权利人:UNIV ROUEN NORMANDIE; UNIV CAEN; INSTITUT NAT DES SCIENCES APPLIQUEES DE ROUEN INSA; CENTRE NAT RECH SCIENT; ECOLE NAT SUPERIEURE DINGENIEURS DE CAEN
摘要:The present invention concerns a novel method for synthesising diazirines, that may or may not be enriched in nitro-gen-15, from amino acids or imines, via a one-pot synthesis method, comprising the reaction of the starting amino acid or imine with ammonia, which may or may not be enriched in nitrogen-15, and a hypervalent iodine oxidant. The present invention also relates to a method for synthesising ammonia enriched in nitrogen-15. The invention also concerns certain diazirines of formula (I) likely to be obtained by the claimed synthesis method, and also refers to the 15 N 2 -diazirines of formula (I′). The claimed diazirines can be used in photoaffinity labelling. The 15 N 2 -diazirines can also be used in hyperpolarisation, in particular in the medical imaging field.

专利号:US-9982005-B2
优先权日:2013-04-04
标 题 :Macrolides and methods of their preparation and use
发明人：MYERS ANDREW G; SEIPLE IAN BASS; ZHANG ZIYANG
权利人:HARVARD COLLEGE
摘要:Provided herein are methods of preparing macrolides by the coupling of an eastern and western half, followed by macrocyclization, to provide macrolides, including both known and novel macrolides. Intermediates in the synthesis of macrolides including the eastern and western halves are also provided. Pharmaceutical compositions and methods of treating infectious diseases and inflammatory conditions using the inventive macrolides are also provided. A general diastereoselective aldol methodology used in the synthesis of the western half is further provided.