CAS: 679-86-7; 1,1,2,2,3-Pentafluoropropane

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CAS号110920-07-5 3-chlorosulfiny... | CAS号76-37-9 2,2,3,3-四氟丙醇 | CAS号422-56-0 3,3-二氯-1,1,1,2,... | CAS号507-55-1 1,3-二氯-1,1,2,2,... | CAS号74-98-6 丙烷 | CAS号463-49-0 丙二烯 | CAS号335-05-7 三氟甲烷磺酰氟 | CAS号56758-53-3 [2-chloro-1,2-d... | CAS号79546-72-8 methyl 2-chloro...

📜四氟丙醇置于n,N-二甲基四氟乙胺体系中,化学反应 12.0H,以49%的收率获得产物1,1,2,2,3-五氟丙烷
参考文献:1,1,2,2-四氟乙基-N,N-二甲基胺:一种新型的选择性氟化剂
标题:1,1,2,2-四氟乙基-N,N-二甲基胺:一种新型的选择性氟化剂
摘要:通过四氟乙烯和二甲胺的反应,可以制备标题化合物,产率为96-98%.发现1,1,2,2-四氟乙基-N,N-二甲基胺(1)是将醇转化为烷基氟化物的有效试剂.1和伯醇的反应在高温下以高收率形成了相应的烷基氟化物.但是,仲醇和叔醇的反应在0-10oc下迅速发生,产生相应的烷基氟化物作为主要产物以及一些烯烃.
DOI:10.1016/s0022-1139(01)00372-4

专利信息

专利号:US-9676726-B2
优先权日:2013-12-23
标题:Process for the regioselective synthesis of pyrazoles
发明人：MEAZZA GIOVANNI; SILLANI LAURA; MEREGHETTI PIERANGELO; FORGIA DANIELE
权利人:ISAGRO SPA
摘要:A process is described for the synthesis of pyrazoles having general formula (I) n nwhich comprises the steps of mixing a compound having general formula (II)n n nand a 1,2-disubstituted hydrazine having general formula (III)n n nto form a reaction intermediate having general formula (IV)n n nand the reaction mixture obtained in step i), in an acid environment, cyclizes to form a pyrazole having general formula (I), according to reaction scheme 1

专利号:EP-1252205-B1
优先权日:1999-12-29
标题:Fluorosulphonated elastomers with low glass transition based of vinylidene fluoride
发明人：AMEDURI BRUNO MICHEL; ARMAND MICHEL; BOUCHER MARIO; MANSERI ABDELLATIF
权利人:HYDRO QUEBEC
摘要:The present invention describes the synthesis of new sulforated fluorinated elastomers having very low glass transition temperatures (Tg), a good resistance to bases, oils and fuels and good properties of workability. These elastomers contain, by way of example, from 80 to 60 mole % of vinylidene fluoride (VDF) and 20 to 40 mole % of perfluoro(4-methyl-3,6-dioxaoct-7-ene) sulfonyl fluoride (PFSO2F). In this case, they are prepared by radical copolymerisation of VDF and PFSO2F in the presence of different organic initiators, for example, peroxides, peresters or diazo compounds.

专利号:US-2013035307-A1
优先权日:2010-01-26
标 题:Methods for treating or preventing the spread of cancer using semi-synthetic glycosaminoglycosan ethers
发明人：PRESTWICH GLENN D; KENNEDY THOMAS P
权利人:UNIV UTAH RES FOUND; PRESTWICH GLENN D; KENNEDY THOMAS P
摘要:Described herein are methods for the treatment and prevention of tumor metastasis using alkylated and fluoroalkylated semi-synthetic glycosaminoglycan ethers (“SAGEsâ€?). The synthesis of sulfated alkylated and fluoroalkylated SAGEs is also described.

专利号:US-8053161-B2
优先权日:2006-09-25
标 题 :Resist composition, resin for use in the resist composition, compound for use in the synthesis of the resin, and pattern-forming method using the resist composition
发明人：WADA KENJI; SAEGUSA HIROSHI
权利人:FUJIFILM CORP
摘要:A resist composition comprises: (A) a resin capable of increasing its solubility in an alkali developer by action of an acid; (B) a compound capable of generating an acid upon irradiation with actinic ray or radiation; (C) a resin having at least one of a fluorine atom and a silicon atom; and (D) a solvent, wherein the resin (C) has a degree of molecular weight dispersion of 1.3 or less and a weight average molecular weight of 1.0×10 4 or less.

专利号:US-9709891-B2
优先权日:2005-12-09
标 题:Positive resist composition, resin used for the positive resist composition, compound used for synthesis of the resin and pattern forming method using the positive resist composition
发明人：KANDA HIROMI; KANNA SHINICHI
权利人:FUJIFILM CORP
摘要:A positive resist composition comprises: (A) a resin of which solubility in an alkali developer increases under an action of an acid; (B) a compound capable of generating an acid upon irradiation with actinic rays or radiation; (C) a resin having at least one of a fluorine atom and a silicon atom; and (D) a solvent; and a pattern forming method using the positive resist composition.

专利号:US-5633325-A
优先权日:1993-03-03
标 题 :Polymethacrylate esters, the ester groups of which in the α and optionally also in the ω position differ from the ester groups in the chain
发明人：ESSELBORN EBERHARD; FOCK JUERGEN
权利人:GOLDSCHMIDT AG TH
摘要:Novel polymethacrylate esters are prepared; the ester groups of which in the alpha and optionally also in the omega position differ from the ester groups in the chain. The invention furthermore relates to a method for the synthesis of these compounds by transesterification under selected method conditions.