CAS: 433-28-3; Vinyl Trifluoroacetate

上下游产品

acetaldehyde trifluoroacetic anhydride trifluoroacetic acid acetylene2-phenylcyclopent-2-enone trifluoroacetic acid-methyl ester 25H18F9N3O4C25H18F9N3O4 isopropyl Trifluoroacetate

📜2-氯三氟乙酸乙酯置于三乙胺,对苯二酚体系中,化学反应生成 三氟乙酸乙烯酯
参考文献:一种三氟乙酸乙烯酯的制备方法
标题:一种三氟乙酸乙烯酯的制备方法
摘要:本发明公开了一种三氟乙酸乙烯酯的制备方法,所述制备方法包括以下步骤:(1)酯化反应:在第一溶剂中,混酸催化剂存在下,三氟乙酸和2‑氯乙醇反应获得中间体2‑氯三氟乙酸乙酯;所述混酸催化剂为浓硫酸和固体杂多酸的混合物,固体杂多酸选自磷钨酸,硅钨酸或磷钼酸中的至少一种;(2)消去反应:在第二溶剂中,阻聚剂存在下,将步骤(1)制备的中间体2‑氯三氟乙酸乙酯与有机胺反应得到三氟乙酸乙烯酯;所述有机胺选自三级叔胺和/或环胺.本发明具有原料绿色环保,成本低,工艺条件温和,操作简单,产物收率高,适于工业化生产等优点.

专利信息

专利号:US-2012184653-A1
优先权日:2011-01-18
标 题:Synthesis of linear phosphorus-containing functional fluorocopolymer
发明人：WANG LIANG; WANG VIKTORIA
权利人:WANG LIANG; WANG VIKTORIA
摘要:This invention relates to a synthesis of a linear fluorocopolymer having a plurality of pendant phosphorus-containing functional groups. The synthesized phosphorus-containing fluorocopolymer has chain linearity and narrow molecular weight distributions. It has applications as a lubricant additive that provides friction-reduction, anti-wear, and corrosion protection properties.

专利号:US-5420237-A
优先权日:1991-08-29
标 题:Enzymatic synthesis of polyaniline
发明人：ZEMEL HAYA; QUINN JOHN F
权利人:ALLIED SIGNAL INC
摘要:This invention relates to a process for the enzymatic synthesis of electrically conductive substituted and unsubstituted polyanilines. Aniline monomer(s), an oxidizing agent, which comprises an enzyme and an electron acceptor, and an acidifying agent are reacted together to form polyanilines.

专利号:US-5541273-A
优先权日:1993-11-12
标 题 :Method for preparing poly(vinyl trifluoroacetate) and poly(vinyl trifluoroacetate/vinyl ester) in the absence of chlorofluorocarbon solvent
发明人：EIAN GILBERT L
权利人:MINNESOTA MINING & MFG
摘要:A method for the production of poly(vinyl trifluoroacetate) and copolymers thereof with vinyl esters is described. Poly(vinyl trifluoroacetate) (PVTFA) is obtained in essentially quantitative yield under mild conditions by using non-chlorofluorocarbon solvents comprising siloxanes or perfluorinated fluid. Hexamethyl disiloxane is a particularly useful example of such solvents. Synthesis of syndiotactic PVTFA on a commercial scale without the use of environmentally-harmful solvents is made possible by the invention, which provides a convenient commercial route to syndiotactic polyvinyl alcohol.

专利号:US-8541524-B2
优先权日:2006-07-04
标 题 :Free-radical polymerization process in aqueous dispersion for the preparation of a block copolymer at least one block of which is a block of a halogenated polymer
发明人：FRINGANT CHRISTOPHE; VANDERVEKEN YVES; LACROIX-DESMAZES PATRICK; TONNAR JEFF
权利人:FRINGANT CHRISTOPHE; VANDERVEKEN YVES; LACROIX-DESMAZES PATRICK; TONNAR JEFF; SOLVAY
摘要:Process of controlled free-radical polymerization in aqueous dispersion for the preparation of a block copolymer at least one block of which is a block of a halogenated polymer using molecular iodine and at least one oxidant whose solubility in water is at least 10 g/l for the synthesis of the first block of the block copolymer.

专利号:US-2024174785-A1
优先权日:2021-03-10
标题 :Method for producing polymer, composition for radical polymerization, and radical polymerization inhibitor
发明人：TAKAYAMA TAKUMI; TSUCHIYA HINAKO; MAEKAWA KAZUHIKO
权利人:KURARAY CO
摘要:A method of producing a polymer including a polymerization step of obtaining a polymer by controlled radical polymerization of a monomer (Y) in the presence of an organic compound (A) represented by formula (I) and its constituents and a radical generator (B), where a molar ratio (B/A) of (B) to (A) is from 0.5 to 20. The production method allows synthesis of a highly safe polymer with a high molecular weight while precisely controlling the molecular sequence and the end structure. In addition, the production method is low in toxicity, environmentally friendly, and operated at low costs.

专利号:CN-117813280-A
优先权日:2021-06-18
标题:Synthesis of vinylated hydroxyesters suitable for signal-enhanced magnetic resonance imaging