CAS: 127926-65-2; 4,4'-(9H-Fluorene-9,9-Diyl)Bis(2-Fluoroaniline)

2-氟苯胺,9-芴酮置于硫酸体系中,用 乙二醇 用作溶剂,化学反应 0.5H,以90.4%的收率获得9,9-二(4-氨基-3-氟苯基)芴
参考文献:9,9-双[4-氨基苯基]芴衍生物的制备方法
标题:9,9-双[4-氨基苯基]芴衍生物的制备方法
摘要:本发明公开了一种9,9‑双[4‑氨基苯基]芴衍生物的制备方法,它是由9‑芴酮与取代苯胺在120~160oc的温度下,以浓硫酸为催化剂,以乙二醇用作溶剂,经缩合反应制得;所述取代苯胺与所述9‑芴酮的摩尔比为2∶1~3∶1;所述浓硫酸与所述9‑芴酮的重量比为0.1∶1~0.5∶1;所述乙二醇与所述9‑芴酮的重量比为1∶1~5∶1.本发明的浓硫酸/乙二醇反应体系一方面可以大大降低取代苯胺的用量,从而大大降低生产成本,另一方面还能够在较高的温度下反应,从而获得较高的反应收率,并且浓硫酸相比于盐酸对环境更友好,从而适合工业化生产.

专利信息

专利号:US-2016032052-A1
优先权日:2014-08-01
标 题:Process for manufacturing polyamide
发明人：KATAYAMA TOSHIHIKO; OKADA JUN; KAWASAKI RITSUYA; UMEDA HIDEO
权利人:SUMITOMO BAKELITE CO
摘要:In one or a plurality of embodiments, a process for manufacturing polyamide, with a reduced use of an amide-based solvent in synthesis, is provided. In one or a plurality of embodiments, provided is a process for manufacturing polyamide, including steps (a) to (c): (a) dissolving diacid dichloride in a non-amide-based organic solvent; (b) adding diamine to a solution obtained in the step (a) and reacting the diacid dichloride with the diamine so as to generate polyamide; and (c) adding a trapping reagent capable of trapping hydrochloric acid, at any time at least before the step (b), at the same time of starting the step (b), or during the step (b).

专利号:US-2016075826-A1
优先权日:2014-09-11
标 题:Process for manufacturing polyamide
发明人：SUN LIMIN; ZHANG DONG; JING JIAOKAI; HARRIS FRANK W; OKADA JUN; KATAYAMA TOSHIHIKO; UMEDA HIDEO; KAWASAKI RITSUYA
权利人:AKRON POLYMER SYSTEMS INC; SUMITOMO BAKELITE CO
摘要:In one or a plurality of embodiments, a process for manufacturing polyamide without using PrO (propylene oxide) in synthesis is provided. In one or a plurality of embodiments, provided is a process for manufacturing polyamide, including steps (a) to (c): (a) reacting diacid dichloride monomer with at least two kinds of diamine monomers in a solvent so as to generate polyamide; and (b) removing hydrochloric acid physically out of a reaction system, the hydrochloric acid being generated during the reaction in the step (a); or (c) adding a trapping reagent capable of trapping hydrochloric acid, at any time at least before the step (a), at the same time of starting the step (a), or during the step (a), wherein at least one of the diamine monomers is a diamine monomer containing a carboxyl group, and the trapping reagent does not include propylene oxide.