共查询到20条相似文献,搜索用时 140 毫秒
1.
该文通过V ilsm e ier反应,用4,4′-二甲基三苯胺制得了4-[N,N-二(4′-甲基苯基)]氨基苯甲醛(Ⅰ),收率85.4%;Ⅰ与1,1-二苯基-3-氯丙烯经W ittig反应合成了三苯胺衍生物4-(4,′4′-二苯基-1,′3′-丁二烯基)-N,N-二(4″-甲基苯基)苯胺(Ⅱ),收率43.0%,HPLC面积归一法测定目的产物为99.64%。通过紫外光谱、红外光谱、质谱和元素分析对产物的组成和结构进行了鉴定。用Ⅱ作空穴传输材料制成功能分离型有机光导体,测得其静电特性数据为V0=-580 V,VR=-20 V,E1/2=0.50 lx.s,表明Ⅱ具有优良的空穴传输特性。 相似文献
2.
4-(4',4'-二苯基-1',3'-丁二烯基)-N,N-二(4″-甲基苯基)苯胺的合成及性能 总被引:2,自引:0,他引:2
该文通过Vilsmeier反应,用4,4'-二甲基三苯胺制得了4-[N,N-二(4'-甲基苯基)]氨基苯甲醛(Ⅰ),收率85.4%;Ⅰ与1,1-二苯基-3-氯丙烯经Wittig反应合成了三苯胺衍生物4-(4',4'-二苯基-1',3'-丁二烯基)-N,N-二(4″-甲基苯基)苯胺(Ⅱ),收率43.0%,HPLC面积归一法测定目的产物为99.64%.通过紫外光谱、红外光谱、质谱和元素分析对产物的组成和结构进行了鉴定.用Ⅱ作空穴传输材料制成功能分离型有机光导体,测得其静电特性数据为V0=-580 V,VR=-20 V,E1/2=0.50 lx*s,表明Ⅱ具有优良的空穴传输特性. 相似文献
3.
本文报道了新型的4,4′-二甲基二苯酮分子间夺氢的固相光化学反应。4,4′-二甲基二苯酮晶体分子间的晶格排列,适合于分子间夺氢的要求,得到与液相不同的新产物,4-(对-甲基苯甲酰)苄基-双-(对-甲基)苯基甲醇。初步探讨了4,4′-二甲基二苯酮的固相光化学反应机理。 相似文献
4.
5.
6.
以苯胺、甲醛为原料在盐酸催化下合成4,4′-二氨基二苯甲烷。利用正交实验法考察了反应物投料比、转位温度、转位时间对4,4′-二氨基二苯甲烷收率的影响。确定了优化条件为:n(苯胺)∶n(甲醛)=4∶1,转位温度85℃,转位时间30 min。优化条件下所得目标产物收率为90.42%。 相似文献
7.
8.
9.
4,4'-二氨基二苯胺-2-磺酸是生产直接耐晒黑 GF(C.I.直接黑22,C.I.35435)、C.I.直接黑32(C.I.35440)和黑色基 B(C.I.色基109,C.I.37245)的重要中间体。近年来该染料大量出口,因而4,4'-二氨基二苯胺-2-磺酸的合成受到人们的关注。4,4,-二氨基二苯胺-2-磺酸的合成有两条路线。 相似文献
10.
11.
12.
新型含能材料呋咱类化合物的研究进展 总被引:1,自引:0,他引:1
介绍了几种呋咱类含能化合物3,4–二氨基呋咱(DAF)、3,3′–二氨基–4,4′–氧化偶氮呋咱(DAAF)、3,3′–二氨基–4,4′–偶氮呋咱(DAAzF)、3,4–二硝基呋咱基氧化呋咱(DNTF)、3–硝基呋咱–4–甲醚(NFME)、(3 E,4 E)–二肟甲基氧化呋咱(DPX1)的合成方法和性能。通过与其他含能材料的性能对比,可知呋咱类化合物是一类性能优良、具有广阔应用前景、可应用于推进剂的含能材料。 相似文献
13.
《Inorganic chemistry communications》1999,2(3):93-94
The potential of photochemistry for the synthesis of organometallic molecular squares is illustrated by the preparation of the novel complexes [{(CO)4Cr(4,4′-bipy)Re(CO)3Cl(4,4′-bipy)}2] and [{(CO)4Mo(4,4′-bipy)Re(CO)3Cl(4,4′-bipy)}2]. 相似文献
14.
15.
Summary Various approaches have been carried out in the synthesis of poly(amide-imide)s. A well-developed solution polycondensation
method has been used to prepare such copolymers either from a dianhydride containing a preformed amide group with a diamine
or from a dicarboxylic acid containing a preformed imide ring with a diamine. Direct polycondensations of carboxylic acids
and aromatic diamines can be a more useful technique for synthesis of poly(amide-imide)s PAIs. In this work, direct polymerization reaction of N,N’-(4,4’-hexafluoroisopropylidendiphthaloyl)-bis-L-isoleucine with several aromatic diamines such as 4,4’-diaminodiphenylsulphone
(4a), 4,4’-diaminodiphenylmethane (4b), 4,4’-diaminodiphenylether (4c), 1,4-phenylenediamine (4d), 4,4’-diaminobiphenyl (4e), 1,3-phenylenediamine (4f), 2,4-diaminotoluene (4g), was performed in the presence of tosyl chloride (TsCl)/dimethylformamide (DMF)/pyridine (Py) as a condensing agent. The
resulting PAIs were obtained in high yield and inherent viscosity. Some structural characterization and physical properties of these polymers
have been studied and will be reported. 相似文献
16.
17.
Polyimides with low dielectric constants are important raw materials for the fabrication of flexible printed circuit boards and other microelectronic applications. As creation of voids in polyimide matrix could decrease dielectric constant, in this study mesoporous KIT‐6, synthesized hydrothermally, was functionalized with 3‐aminopropyltriethoxysilane (APTS) and mixed with 4,4′‐oxydianiline (ODA) in the synthesis of terpoly(amic acid) using 3,3′,4,4′‐biphenyldianhydride (BPDA), 3,3′,4,4′‐oxydiphthalic dianhydride (ODPA) and 3,3′,4,4′‐benzophenonetetracarboxylic dianhydride (BTDA) and subsequently stage‐cured to obtain APTS‐KIT‐6/Terpolyimide composites (APTS‐KIT‐6/TPI). The asymmetric and symmetric vibrations of imide O?C? N? C?O groups of APTS‐KIT‐6/TPI composites showed their peaks at 1772 and 1713 cm?1. The dielectric constant decreased with the increase in KIT‐6 loading from 2 to 4%, but increased at higher loadings, and at 4% loading it was 1.42. Its tensile strength (103 MPa), tensile modulus (2.5 GPa), and percentage elongation (8.2) and high thermal stability (>540°C) were also adequate for application in microelectronics such as flexible printed circuits. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014 , 131, 40508. 相似文献
18.
采用TRACERlab FXF-N自动化合成装置制备了肿瘤显像剂3’-脱氧-3’-18F-氟代胸腺嘧啶核苷(18F-FLT)。以3-N-t-叔丁氧羰基-1-[5’-O-(4,4’-二甲氧基三苯甲基)-2’-脱氧-3’-O-(4-硝基苯磺酰基)-β-D-苏型-呋喃戊糖基]胸苷为前体,经过亲核氟化、盐酸水解两步反应及HPLC分离纯化制备18F-FLT,研究了不同因素对合成效率的影响。结果表明,总合成时间约55 min,未校正18F衰变情况下,放射化学产率约25%,放化纯度大于95%。 相似文献
19.
以溴代二硝基甲烷钾盐和丙烯酸乙酯为原料,在相转移催化剂四丁基溴化铵的作用下通过Michael加成反应得到4-溴-4,4-二硝基丁酸乙酯。通过单因素实验,探讨了反应物料摩尔比、反应温度、反应时间及催化剂用量对产物产率的影响,得到的最佳工艺条件为:反应温度30℃,n(丙烯酸乙酯)∶n(溴代二硝基甲烷钾盐)=2∶1,反应时间30 min,四丁基溴化铵用量为溴代二硝基甲烷钾盐物质的量的20%,在该条件下产物产率可达52%;并用UV-vis、FTIR、1HNMR、MS以及元素分析等方法表征了产物的结构。 相似文献
20.
The paper describes the successful synthesis of silicon containing bismaleimide resin 4,4′-carbo(4,4′-bismaleimido phenoxy)diphenyl silane. The char yield of the bismaleimide resin in N2 atmosphere was found to be 55% at 800°C. Chain extension of bismaleimide with 4,4′-diamino diphenyl sulfone reduced the char yield and thermal stability. 相似文献