CAS: 1220-78-6; 4,4'-(Propane-2,2-Diyl)Bis(2-Aminophenol)

上下游产品

4,4′-(1-methylethylidene)bis[2-nitrophenol] BPA 2,2'-bis-acetylamino-4,4'-isopropylidene-di-phenol

4,4'-(1-Methylethylidene)Bis[2-Nitrophenol]置于palladium On Activated Charcoal,一水合肼体系中,用 乙醇 用作溶剂,以85 %的收率获得2,2-双(3-氨基-4-羟基苯基)丙烷
参考文献:2,2'-二氨基-4,4'-(丙烷-2,2'-二基)联苯酚的合成,光谱性质,晶体结构和dft研究
标题:2,2'-二氨基-4,4'-(丙烷-2,2'-二基)联苯酚的合成,光谱性质,晶体结构和dft研究
摘要:通过双酚a的硝化和还原合成了双酚a衍生物2,2'-二氨基-4,4'-(丙烷-2,2-二基)-联苯酚( 3 ).通过元素分析,典型光谱技术,即ft-Ir,1 H-NMR和13 C-NMR对标题化合物进行表征.还通过单晶x射线衍射法确定了该化合物的结构.该化合物在正交晶系中结晶,空间群为p Bcn,A = 15.51106(18) å,B = 11.6910 (10) å,C = 7.6473 (7) å.可以看出,在标题化合物的晶体结构中,-Oh基团的氢原子与nh 2 基团处于反位.此外,在二聚晶格中观测到-Nh 2基团的氢形成分子内氢键,而-Oh基团的氢形成分子间氢键.通过dft方法优化了化合物的几何结构,并将结果与x射线衍射数据进行了比较.使用b3Lyp/6-31G(D)方法计算标题化合物的前沿分子轨道.还进行了 Mep 分析和 Mulliken 电荷密度,全局反应性和热力学性质.
Doi:10.1007/s10870-023-00990-4

专利信息

专利号:US-11136286-B2
优先权日:2017-01-27
标题:Diamine compound, and polyimide compound and molded product using the same
发明人：GOSHIMA TOSHIYUKI; SOE WIN MAW
权利人:WINGO TECH CO LTD
摘要:[Problems to be solved] The present invention provides a novel diamine compound which allows for the synthesis of a polyimide compound having a high solubility in an organic solvent and a high melt moldability.[Solution] The diamine compound according to the present invention is characterized by being represented by the following general formula (1):(whereinR1 to R8 are each independently selected from the group consisting of a hydrogen atom, a fluorine atom, a substituted or unsubstituted alkyl group, and a substituted or unsubstituted aromatic group; and at least one of R1 to R8 is a substituted or unsubstituted aromatic group).

专利号:US-3864310-A
优先权日:1972-01-28
标 题:High performance heterocyclic polymer polymerization via molten lewis acid eutectics
发明人：SAFERSTEIN LOWELL
权利人:CELANESE CORP
摘要:An improved process is provided for the synthesis of high performance heterocyclic polymers wherein the polymerization is conducted in the presence of a molten Lewis Acid eutectic selected for its ability to dissolve the high molecular weight polymer; to remove water produced via the condensation reaction; and to melt substantially below the polymerization reaction temperature.

专利号:US-2012305484-A1
优先权日:2011-06-03
标题 :Thermally Rearranged (TR) Polymers as Membranes for Ethanol Dehydration
发明人：FREEMAN BENNY D; PAUL DONALD R; CZENKUSCH KATRINA; RIBEIRO JR CLAUDIO P; BA CHAOYI
权利人:FREEMAN BENNY D; PAUL DONALD R; CZENKUSCH KATRINA; RIBEIRO JR CLAUDIO P; BA CHAOYI; UNIV TEXAS
摘要:Synthesis and use of a new class of polymeric materials with favorable separation characteristics for the dehydration of ethanol and other organic solvents is described herein. The thermally rearranged (TR) polybenzoxazole (PBO), polybenzimidazole (PBI) and polybenzothiazole (PBT) membranes of the present invention can be used for the dehydration of ethanol during processing to fuel grade biodiesel by either pervaporation or vapor permeation. The unique microstructure of the membranes provides excellent separation characteristics, and this, coupled with their inherent thermal and chemical stability, enables their usage in other separations, such as the dehydration of other organic solvents.