CAS: 392-56-3; Hexafluorobenzene

上下游产品

tribromofluoromethane hexachlorobenzene °Ctafluor°Cyclohexa-1,4-diene rH,2cH,4cH-nonafluoro-cyclohexane(+/-)-1rH,2cH,4cH-nonafluoro-cyclohexanePentafluoroanisole 1,2,4,5-tetrafluoro-3,6-dimethoxybenzene 2,3,4,5,6-pentafluoroaniline 2,2',3,3',4,4',5,5',6,6'-decafluorodiphenylamine

Hexafluoro-2,5-Cyclohexadienylene 1,4-Bis(Fluorosulfate)置于potassium Bromide体系中,用 环丁砜 作为反应溶剂,化学反应 2.5H,以90.9%的收率获得产物六氟苯
参考文献:Reaction Of 4-Chlorohexafluoro-2,5-Cyclohexadienyl Fluorosulfate And Hexafluoro-2,5-Cyclohexadienylene 1,4-Bis(Fluorosulfate) With Nucleophilic Reagents
标题:Reaction Of 4-Chlorohexafluoro-2,5-Cyclohexadienyl Fluorosulfate And Hexafluoro-2,5-Cyclohexadienylene 1,4-Bis(Fluorosulfate) With Nucleophilic Reagents
摘要:
DOI:10.1007/bf00959377

专利信息

专利号:US-6479685-B2
优先权日:1998-01-09
标题 :Metallocene catalysts for synthesis of high-melting polyolefin copolymer elastomers
发明人：WAYMOUTH ROBERT M; KRAVCHENKO RAISA L; MACIEJEWSKI PETOFF JENNIFER; HUNG JOYCE
权利人:TRUSTEES OF THE LELAND STANDAR
摘要:Metallocene catalysts having plural coordination geometries for synthesis of high melting polyolefin copolymers suitable as thermoplastic elastomers. The inventive catalysts comprise unbridged, substituted or unsubstituted cyclopentadienyl metallocene catalysts that are capable of inter-converting between states with different polymerization or copolymerization characteristics, which interconversion is controlled by selecting the substituents of the cyclopentadienyl ligands so that the rate of interconversion of the two states is within several orders of magnitude of the rate of formation of a single polymer chain. Where r i >r f the polymer can be characterized as multiblock; where r i
专利号:US-11970449-B2
优先权日:2021-10-04
标 题:Mechanochemical based synthesis of perfluoropyridine monomers for polymerization
发明人：IACONO SCOTT T; FRIESEN CHADRON M
权利人:US GOV AIR FORCE; US AIR FORCE
摘要:The present invention relates to a mechanochemical based synthesis of perfluoropyridine monomers, polymers made using such monomers and methods of making and using articles comprising such polymers. Such perfluoropyridine monomers are easily chemically tuned have the strength needed for high temperature applications and the flexibility needed for low temperature applications. In addition, to the aforementioned monomers, a mechanochemical based synthesis for such perfluoropyridine monomers is provided. All of the aforementioned performance application advantages are also found in polymers comprising Applicants' perfluoropyridine monomers.

专利号:US-4219489-A
优先权日:1978-09-05
标题:Synthesis of steroids
发明人：BUNES LEONARD A; JOHNSON WILLIAM S
权利人:STANFORD LELAND JUNIOR UNIV TR
摘要:Method and compounds are provided for use in the synthesis of steroids wherein a polyolefin is provided having an initiating group having a chalcogen atom in juxtaposition to a double bond, so as to be capable of bond formation to close to form a ring and having a terminating group involving pi unsaturation (a double or triple bond) conjugated to an aromatic ring. Upon acid catalysis, sigma bonds are formed through the interaction of a carbocation formed at the carbon atom bonded to the chalcogen atom and the double bond intermediate the initiating group and the terminating group, which close to form rings of a steroid nucleus, the carbocation interacting with the pi unsaturation conjugated with the aromatic group and being captured by a nucleophile present in the acidic reaction medium. The resulting steroid product may then be modified in known ways to produce known steroids.

专利号:US-7767826-B2
优先权日:2007-10-05
标题 :Process for the synthesis of L-(+)-ergothioneine
发明人：TRAMPOTA MIROSLAV
权利人:PHARMATECH INTERNATIONAL INC
摘要:This invention relates to a novel process for the preparation of optically pure L-(+)-ergothioneine. The process for the chemical synthesis of L-ergothioneine comprises steps which consist of reacting L-histidine alkyl ester with an acid halide, chloroformate or pyrocarbonate in the presence of a base, hydrolysis of the alkyl-(S,Z)-2,4,5-triamidopent-4-enoate to obtain a (S)-alkyl 2,5-diamido-4-oxopentanoate, acid catalyzed hydrolysis of the (S)-alkyl 2,5-diamido-4-oxopentanoate followed by reaction with a metal thiocyanate to obtain the thiohistidine, protection of the sulfur of thiohistidine as the tert-butyl thioether, dialkylation of the primary amine to obtain a tertiary amine, quaternization of the tertiary amine, and removal of the protecting group to obtain the desired (S)-3-(2-mercapto-1H-imidazol-5-yl)-2-(trialkylammonio)propanoate (I). This process affords a better yield and is capable of practical application at large scale.

专利号:WO-2024163733-A1
优先权日:2023-02-01
标题:Electrochemical synthesis with redox stable nucleotides
发明人：WU TIANDI; LACKEY JEREMY; LIN YANYOU; PITSCH STEFAN
权利人:TWIST BIOSCIENCE CORP
摘要:Provided herein are compositions, devices, systems and methods for constructing and storing polynucleotides encoding information with redox resistant bases. The compositions, devices, systems, and methods described herein provide for storage or synthesis of a library comprising a plurality of polynucleotides with one or more redox resistance bases. Further provided herein are methods to increase DNA synthesis yield and fidelity.

专利号:US-2023399302-A1
优先权日:2020-10-29
标题:Process for the preparation of heteroaryl-substituted sulfur(vi) compounds
发明人：LOPCHUK JUSTIN M; SHULTZ ZACHARY P; SCATTOLIN THOMAS
权利人:H LEE MOFFITT CANCER CT & RES
摘要:The present disclosure provides processes for the synthesis of organic compounds, in particular processes for the synthesis of heteroaryl-substituted sulfur(VI) compounds by nucleophilic aromatic substitution.