CAS: 7705-07-9; Titanium(Iii) Chloride

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Dioxide Titanium置于c,Alkali Chlorides,Cl2体系中,用 Neat (No Solvent) 作为反应溶剂,化学反应生成 三氯化钛
参考文献:Gmelin Handbuch Der Anorganischen Chemie,Gmelin Handbook: Cl: Svol.A,123,Page 280-282
标题:Gmelin Handbuch Der Anorganischen Chemie,Gmelin Handbook: Cl: Svol.A,123,Page 280-282

专利信息

专利号:WO-2023036831-A1
优先权日:2021-09-07
标 题:Process for preparing starting compounds intended for the synthesis of an ammine metal borohydride
发明人：HAJIYEV PARVIZ; NGUYEN HUYNH DUC
权利人:COMMISSARIAT ENERGIE ATOMIQUE
摘要:Process for preparing a metal hydride of formula AxMHx+m and a borane compound BH3, starting from a product of formula AxM(BNH)x+m, wherein: A is an alkali metal, M is a metal different from an alkali metal, 0 ≤ x ≤10, in particular 0 ≤ x ≤ 2 m>0, the process comprising: a) contacting the product of formula AxM(BNH)x+m with a catalyst comprising a transition metal in solution in an aprotic polar solvent, such as to separate the metal hydride of formula AxMHx+m and a hydrogenated boron nitride compound BNH, b) the synthesis of the borane compound BH3, from the hydrogenated boron nitride compound BNH, the synthesis comprising: - a digestion reaction of the boron nitride compound BNH in a gaseous atmosphere containing, even consisting in, an anhydrous hydrogen halide acid gas comprising at least one halogen element Y, such as to produce a boron halide BY3, Y being preferably chlorine Cl, - a hydrodehalogenation of the boron halide, in a hydrogen gas atmosphere to obtain the borane compound BH3.

专利号:US-6271379-B1
优先权日:2000-03-08
标题:Intermediates useful for the synthesis of huperzine A
发明人：TUECKMANTEL WERNER; KOZIKOWSKI ALAN P
权利人:UNIV GEORGETOWN
摘要:Intermediates useful for the synthesis of huperzine A represented by the structures below, n and methods for their synthesis, wherein: n R 1 is lower alkyl, benzyl, or substituted benzyl; n X is a suitable leaving group; n Y is an electron withdrawing group that can subsequently be converted into an amino group; n one broken line is present as a carbon—carbon bond and the other broken line is absent, where the broken line forms an unconjugated carbon—carbon double bond, which double bond may be endocyclic whereby n is 3 or the double bond may be exocyclic whereby n is 2.

专利号:US-6262251-B1
优先权日:1995-10-19
标题 :Method for solution phase synthesis of oligonucleotides
发明人：PIEKEN WOLFGANG; MCGEE DANNY; SETTLE ALECIA; ZHAI YANSHENG; HUANG JIANPING
权利人:PROLIGO LLC
摘要:This invention discloses an improved method for the sequential solution phase synthesis of oligonucleotides. The method lends itself to automation and is ideally suited for large scale manufacture of oligonucleotides with high efficiency.

专利号:EP-0790982-B1
优先权日:1994-06-17
标 题 :Methods of synthesis of peptidyl argininals
发明人：WEBB THOMAS R; REINER JOHN E; TAMURA SUSAN Y; RIPKA WILLIAM C; DAGNINO RAYMOND JR; NUTT RUTH F
权利人:CORVAS INT INC
摘要:This invention provides solution-phase and solid-phase methods for the synthesis of peptidyl argininals and to novel reagents useful therein, which have formula (I), wherein R1 is selected from the group consisting of hydrogen, benzyloxycarbonyl, isonicotinyloxycarbonyl, 2-chlorobenzyloxycarbonyl, 4-methoxybenzyloxycarbonyl, t-butoxycarbonyl, t-amyloxycarbonyl, isobornyloxycarbonyl, adamantyloxycarbonyl, 2-(4-biphenyl)-2-propyloxycarbonyl, 9-fluorenylmethoxycarbonyl and methylsulfonylethoxycarbonyl; R2 is selected from the group consisting of alkyl of 1 to about 12 carbon atoms and aralkyl of about 7 to about 15 carbon atoms, either of which is optionally substituted with hydroxy or -CO-Y, wherein Y is hydroxy, alkoxy of 1 to about 12 carbon atoms, aralkoxy of about 7 to about 15 carbon atoms, O-polymeric support or NH-polymeric support; R3 is selected from the group consisting of hydrogen, Fmoc, nitro, benzyloxycarbonyl, t-butoxycarbonyl and adamantyloxycarbonyl; and R4 is selected from the group consisting of hydrogen, alkyl of 1 to about 12 carbon atoms, aryl of about 6 to about 14 carbon atoms and aralkyl of about 7 to about 15 carbon atoms; and salts thereof.

专利号:US-12221452-B2
优先权日:2017-10-04
标题:Synthesis of cantharidin
发明人：DAVIDSON MATTHEW GENE; EKLOV BRIAN MATTHEW; WUTS PETER; LOERTSCHER BRAD MELVIN; SCHOW STEVEN R
权利人:VERRICA PHARMACEUTICALS INC
摘要:The invention provides synthetic methods for the preparation of cantharidin and analogs thereof. In one aspect, the invention provides an improved Diels-Alder cycloaddition to generate a key intermediate en route to cantharidin and analogs thereof. In certain embodiments, the new Diels-Alder reaction involves reacting Compound (2) in the presence of furan, and in the absence of acid or increased pressure, in an aprotic polar solvent with slight warming, to yield Compound (1) in favorable yield and exo-endo ratio. In another aspect, the invention also provides a new Diels-Alder reaction between compounds of Formula (III) and furan to yield compounds of Formula (IV), which can then be transformed into cantharidin or analogs thereof. In yet another aspect, the invention describes a new palladium-mediated carbonylation providing another key intermediate en route to cantharidin and analogs thereof. In addition to synthetic methods, present invention also provides compounds (i.e., intermediates) useful in the synthesis of cantharidin and analogs thereof. Compounds provided herein may have biological activity, and therefore may be used in the treatment of diseases or conditions (e.g., infectious diseases and skin conditions).

专利号:US-5191110-A
优先权日:1987-05-21
标题 :Process for the synthesis of vitamin A and certain ones of derivatives
发明人：SOLLADIE GUY; FORESTIER SERGE; LANG GERARD
权利人:OREAL
摘要:According to this process, one effects a stereospecific reduction of the two hydroxyl groups of an ether-diol by a mixture (titanium trichloride, lithium aluminum hydride) at a temperature between 5° C. and about 40° C. and that optionally, one converts the resulting ether into vitamin A, retinol or retinoic acid. n Application to the synthesis of all-trans compounds selected from the group consisting of vitamin A and its ethers, retinol and retinoic acid, and their 13-cis isomers.