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Bis(Guanidinium)Bis(Oxalato)Cuprate(II) 反应生成 碳酸氢铵
参考文献:Two Novel Organic-inorganic Hybrid Compounds With Straight And Zigzag Chain Alignments Of Cu(II) Centers: Synthesis,Crystal Structure,Spectroscopy,Thermal Analysis And Magnetism
标题:Two Novel Organic-inorganic Hybrid Compounds With Straight And Zigzag Chain Alignments Of Cu(II) Centers: Synthesis,Crystal Structure,Spectroscopy,Thermal Analysis And Magnetism
摘要:Two Hybrid Salts,Viz. Bis(Guanidinium) Bis(Oxalato)Cuprate(II) (1) And Bis(2-Aminopyridinium) Bis(Oxalato)Cuprate(II) Trihydrate (2) Have Been Synthesized And Characterized By Elemental And Thermal Analyses,Ir Spectroscopy,Single-Crystal X-Ray Diffraction And Squid Magnetometry. Compounds 1 And 2 Crystallize In The Monoclinic P2(1)/c And Triclinic P (1) Over Bar Space Groups,Respectively. In Both Structures,The Four-Coordinated Cu(II) Ion In [cu(C2O4)(2)](2-) Unit Weakly Interacts With Two Axial O-Atoms Of Neighboring Units To Build A Prolate Cuo6 octahedron,With Regular Axial Cu-O Bonds Of 2.825 Angstrom In 1,Whereas In 2 Two Different Cu-O Bonds (2.814 Angstrom And 2.701 Angstrom) Are Found. In 1,Stacking Of [cu(C2O4)(2)](2-) Units Across Internal Symmetry-Related O-Atoms Results In Equidistantly Spaced Monomers,Thus Forming Straight Cu(II) Chains With Regular Spacing Of Cu Center Dot Center Dot Center Dot Cu = 3.582 Angstrom. By Contrast,In 2,Stacking Of The [cu(C2O4)(2)](2-) Entities occurs Via External Symmetry-Related 0-Atoms,Yielding Zigzag Cu(II) Chains With Shorter Intra-Dimer Spacing Of [cu Center Dot Center Dot Center Dot Cu](Intra) = 3.430 Angstrom And Longer Inter-Dimer Spacing Of [cu Center Dot Center Dot Center Dot Cu](Inter) = 4.961 Angstrom. The Anhydrated Compound 1 Is Stable Up To 250 Degrees C,Whereas The Hydrated Compound 2 Shows A Significant Weight Loss Of Solvent Water Molecules At About 70 Degrees C,Followed By The Decomposition Of The Network. The Magnetic Measurements In The 2-300 K Temperature Range Revealed Weak Antiferromagnetic Coupling In The Two Hybrid Salts. (C) 2015 Elsevier Ltd. All Rights Reserved.
DOI:10.1016/j.Poly.2015.06.023

专利信息

专利号:WO-2025035571-A1
优先权日:2023-08-15
标 题 :Process for recycling waste residue from synthesis of hexachlorocyclotriphosphazene
发明人：LONG ZHI; WANG QIUWEI; LIN PING; YAN ZHIWEI; YE JUN
权利人:ZHEJIANG WANSHENG CO LTD
摘要:Provided is a process for recycling waste residue from the synthesis of hexachlorocyclotriphosphazene. The process comprises: reacting waste residue separated out after a synthesis reaction of hexachlorocyclotriphosphazene is finished with an ammonia source, the ammonia source being liquid ammonia, ammonia gas, ammonia water, ammonium bicarbonate, ammonium carbonate or a combination thereof; adjusting the pH value at an end point to 6-10; subjecting the obtained reaction product to solid-liquid separation so as to obtain a filtrate and a filter cake; subjecting the filter cake to post-treatment so as to obtain a recovered metal chloride catalyst; extracting the filtrate by using chlorobenzene, i.e. an extracting agent, so as to obtain an extract phase and a raffinate phase; rectifying the extract phase to obtain chlorobenzene and recovered pyridine or pyridine derivatives; and dehydrating the raffinate phase to obtain recovered ammonium chloride. By means of the process, high-degree recycling and regeneration of waste residue from the synthesis of hexachlorocyclotriphosphazene are achieved, the recovery rate of pyridine or pyridine derivatives from the waste residue can reach 95-99% or higher, the recovery rate of ammonium chloride and the metal chloride catalyst can reach 98% or higher, and no new waste residue is generated throughout the whole process.

专利号:US-6063919-A
优先权日:1998-08-14
标题:Process for the synthesis of exochelins
发明人：GAUDIOSO LARRY A; WEGLARZ MICHAEL A
权利人:KEYSTONE BIOMEDICAL INC
摘要:A process for the synthesis of an Exochelin comprising the steps of generating L-N-[(2-benzyloxy-(benzoyl)] serine or L-N-[2-benzyloxy (benzoyl)] threonine, creating L-N-t-Boc- epsilon -hydroxynorleucine and reacting same to produce L-N-Boc- epsilon -bromonorleucine trimethylsilylethyl ester, providing a dicarboxylic acid and forming an O-benzyl methyl hydroxamate from the dicarboxylic acid, coupling the O-benzyl methyl hydroxamate with the L-N-Boc- epsilon -bromonorleucine trimethylsilylethyl ester to give an L-N2-Boc-N6-methyl,N6-(benzyloxy) lysine 2-trimethylsilylethyl ester which incorporates the dicarboxylic acid as modified above, removing the N-tert-butoxycarbonyl protecting group from the L-N2-Boc-N6-methyl, N6-(benzyloxy) lysine 2-trimethylsilylethyl ester to yield a substituted lysine, and coupling the same with the L-N-[2-benzyloxy (benzoyl) serine or -threonine to yield a 2-trimethyl silylethyl ester of dibenzyl Exochelic acid, transforming the 2-trimethyl silylethyl ester of dibenzyl Exochelic acid to dibenzyl Exochelic acid, preparing benzyl epi-cobactin, forming an ester bond between the dibenzyl Exochelic acid and benzyl epi-cobactin to form an intermediate, and, hydrogenolytically removing three benzyl groups from said intermediate, resulting in the synthesized Exochelin. More particularly, a synthesis for Exochelin 786SM (R) is disclosed wherein the dicarboxylic acid is suberic acid and the serine form is utilized.

专利号:US-2023174567-A1
优先权日:2020-05-22
标题:Synthesis of fluorinated nucleotides
发明人：ARMIGER TRAVIS; BELYK KEVIN M; BENKOVICS TAMAS; CHUNG CHEOL K; JI CHEN YINING; JOHNSON HEATHER CLAIRE; KLAPARS ARTIS; LIU ZHIJIAN; LIU ZHUQING; MOORE JEFFREY C; NEEL ANDREW J; PENG FENG; RUMMELT STEPHAN M; SALEHI MARZUARANI NASTARAN; SHERRY BENJAMIN D; SONG ZHIGUO JAKE; TURNBULL BEN WILLIAM HULME; WANG LU; XU FENG
权利人:MERCK SHARP & DOHME LLC
摘要:The present invention relates to efficient processes useful in the preparation of fluorinated nucleosides, such as (2S,3R,4S,5R)-5-(2-amino-6-oxo-1,6-dihydro-9H-purin-9-yl)-3-fluoro-4-hydroxy-2-(mercaptomethyl)tetrahydrofuran-3-yl dihydrogen phosphate, also known as 3′-fluoro-thio-guanosine monophosphate or 3′-F-thio-GMP. Such fluorinated nucleosides may be useful as a biologically active compound and or as an intermediate for the synthesis of more complex biologically active compounds. The present invention also encompasses intermediates useful in the disclosed synthetic processes and the methods of their preparation. (I)

专利号:US-10172941-B2
优先权日:2014-07-24
标题:Method for synthesis of silica coated graphene functional hybrid material
发明人：LIU JOHAN
权利人:SHT SMART HIGH TECH AB
摘要:A process for synthesis of silica coated graphene hybrid material comprising the steps of treating graphene oxide with ammonium ions to provide ammonium-activated graphene oxide; treating the ammonium-activated graphene oxide with a solution comprising silica precursors; and silane coupling agents that comprise functional groups, to provide self-assembly of silica nanoparticles on the surface of the ammonium-activated graphene oxide and covalent bonding between the nanoparticles and the surface to provide silica coated graphene oxide; and grafting of the functional groups on the surface of the silica coated graphene oxide to provide functionalized silica coated graphene oxide; and reducing the functionalized silica coated graphene oxide to provide functionalized silica coated graphene. Silica coated graphene hybrid material obtainable by this process.

专利号:WO-2023204823-A1
优先权日:2022-04-23
标题 :Process for synthesis of lignocellulosic based bioproducts
发明人：JAIN ARPAN
权利人:JAIN ARPAN
摘要:The present invention relates to a process for the synthesis of lignocellulosic-based bioproducts. The process involves the biochemical conversion of lignocellulosic biomass generated through agriculture, non-agriculture, and forest that produces streams of high-value goods including cosmetic ingredients, nutraceuticals, carbon fiber, activated carbon, graphene, low-calorie sugar, bioplastic, cellulose pulp, and nano-cellulose based aerogel. The process comprises; a process stage-1 for removing the phenolic compounds (lignin) from lignocellulosic biomass as well as decreasing the crystallinity of the cellulose using alkaline modified ethyl-hydro-oxides (m-EHOs) extraction, a process stage-2 for removal of the hemicellulose fraction of the holocellulose using mild sulfuric acid extraction, and a process stage-3 for chemically treating cellulose pulp with alkaline modified ethyl-hydro-oxides (m-EHOs) solvent for the production of nano-cellulose and micro-cellulose fractions. Along with the production of high-value goods, the process generates energy.

专利号:US-9006124-B2
优先权日:2012-04-13
标题:Process for synthesis of doped titania nanoparticles having photocatalytic activity in sunlight
发明人：MAPARU AUHIN KUMAR; RAI BEENA; GANVIR VIVEK
权利人:TATA CONSULTANCY SERVICES LTD
摘要:Present disclosure provides a process for the synthesis of doped titania nanoparticle having photocatalytic activity greater than 90% at 2 hours under sunlight irradiation. The process involves step a) milling a mixture containing anatase titania and a precursor compound, the compound selected from the group consisting of metal and non-metal salts, in the presence of water and oxide milling media, at a temperature in the range of 20 to 50° C. for a period of 60-120 minutes, to form a slurry, wherein the amount of water is in the range of 15 to 25% by weight of the total mixture; and b) filtering the slurry to separate the oxide milling media and obtain a filtrate containing doped titania nanoparticles.