
物理性质
- 熔点-61 °C
- 沸点153 °C(文献)
- 闪点136 °F
- 密度0.948 g/mL at 20 °C
- PH:6.7
- pKa:-0.44±0.70(预测)
- PSA:20.31
- LogP:0.3403
- 旋光度0.94º
- 折射率n20/D 1.430(文献)
- 蒸汽压2.7 @ 2°C
- 溶解性Complete
- 敏感性1.为非质子型极性溶剂,对多种有机化合物和无机化合物均有良好的溶解能力,在无碱、酸、水存在下,具有良好的化学稳定性。2.化学性质:在无酸、碱、水存在下,即使加热到沸点也是比较稳定的。在酸的作用下分解成甲酸和二甲胺盐,而在碱的作用下则分解成甲酸盐和二甲胺。3.受紫外线作用分解成二甲胺与甲醛,加热到350°C左右分解成二甲胺与一氧化碳。与盐酸形成比较稳定的等摩尔的加合物,其熔点为40°C,沸点为110°C。与SO3也能形成结晶性加合物,其熔点为138°C,沸点为145°C,DMF-SO3可作为缓和的磺化剂和硫酸化剂使用。与P°Cl3、C°Cl2、S°Cl2等形成的加合物可在电子密度高的芳香环上引入CHO基(Vilsmeier反应)。P2O5在室温下不溶于N,N-二甲基甲酰胺,但在40°C以上形成稳定的络合物后,在室温即能溶解,而不发生沉淀。在金属钠存在下加热时发生激烈反应并放出氢气。与三乙基铝在0°C也能发生激烈反应。也能与Grignard试剂反应。与酰氯及酸酐发生反应时生成二甲酰胺的衍生物。4.属低毒类。动物试验证明,连续投给大量的N,N-二甲基甲酰胺时,引起体重减轻,并阻碍造血机能。对眼、皮肤、黏膜有强烈的刺激作用,其液体或蒸气被皮肤吸收后还能引起肝脏障碍。吸入高浓度的蒸气能引起急性中毒,主要症状为严重刺激、全身痉挛、疼痛性便秘和恶心、呕吐等。慢性中毒除有皮肤、黏膜刺激外,尚有恶心、呕吐、胸闷、头痛、全身不适、食欲减少、胃痛、便秘、肝大和肝功能变化、尿胆素原和尿胆素亦可增加。使用时要求平均蒸气浓度在29.9mg/m3以下,59.8mg/m3时即出现中毒症状(伤害中枢神经)。大鼠和小鼠的经口毒性LD50为3000~7000mg/kg。嗅觉阈浓度0.14mg/m3,TJ 36-79规定车间空气中最高容许浓度为10mg/m3。5.稳定性 稳定6.禁配物 强氧化剂、酰基氯、氯仿、强还原剂、卤素、氯代烃、浓硫酸、发烟硝酸7.聚合危害 不聚合
- 外观形态透明无色液体
- 储存条件储存注意事项储存于阴凉、通风的库房。库温不宜超过37°C。远离火种、热源。保持容器密封保存。应与氧化剂、还原剂、卤素等分开存放,切忌混储。采用防爆型照明、通风设施。禁止使用易产生火花的机械设备和工具。储区应备有泄漏应急处理设备和合适的收容材料。
- 产品应用二甲基甲酰胺既是一种用途极广的化工原料,也是一种用途很广的优良的溶剂.二甲基甲酰胺对多种高聚物如聚乙烯,聚氯乙烯,聚丙烯腈,聚酰胺等均为良好的溶剂,可用于聚丙烯腈纤维等合成纤维的湿纺丝,聚氨酯的合成;用于塑料制膜;也可作去除油漆的脱漆剂;它还能溶解某些低溶解度的颜料,使颜料带有染料的特点.二甲基甲酰胺用于芳烃抽提以及用于从碳四馏分中分离回收丁二烯和从碳五馏分中分离回收异戊二烯,还可用作从石蜡中分离非烃成分的有效试剂.它对间苯二甲酸和对苯二甲酸的溶解性有良好的选择性:间苯二甲酸在二甲基甲酰胺中的溶解度大于
- 性质描述无色透明液体.为极性惰性溶剂.除卤化烃以外能与水及多数有机溶剂任意混合.熔点-61°C,沸点152.8°C,76°C(5.2kPa),相对密度0.9445(25/4°C),折射率1.4269.闪点58°C,自燃点445°C.对多种有机化合物和无机化合物均有良好的溶解能力和化学稳定性.25°C的蒸气压为0.493kPa.
欧盟法规
欧盟《植物保护产品法规》统一分类与标签REACH注册ECHA物质食品接触材料-禁用CMR物质C&L通报REACH预注册欧盟《致癌物和致突变物指令》废弃物危险特性清单ECHA物质工作场所安全标识要求化妆品禁用物质清单欧盟候选物质清单上下游产品
CAS号201230-82-2 carbon monoxide | CAS号124-40-3 二甲胺 | CAS号124-38-9 二氧化碳 | CAS号64-18-6 甲酸 | CAS号3585-33-9 二甲基胺锂 | CAS号506-59-2 盐酸二甲胺 | CAS号117731-86-9 2-(2-ethenoxyet... | CAS号107-31-3 甲酸甲酯 | CAS号75-50-3 三甲胺 | CAS号50-00-0 甲醛 | CAS号1032-98-0 3-(2-benzothiaz... | CAS号106129-86-6 3-(dimethylamin... | CAS号1064678-66-5 3-溴-5-氯吡啶-4-羧醛 | CAS号10045-65-5 1-苄基-1H-咪唑-2-甲醛 | CAS号112372-07-3 呋喃并[3,2-c]吡啶-2-羧醛 | CAS号110912-15-7 3-氯-1H-吲哚-2-甲醛 | CAS号1093880-37-5 6-氯-2-氟尼古丁醛 | CAS号1079252-75-7 4-溴-3-甲酰基-1H-吲哚... | CAS号112372-05-1 呋喃并[3,2-b]吡啶-2-羧醛 | CAS号1060809-20-2 6-氯-4-氟烟醛4-甲基噻唑 反应生成 N,N-二甲基甲酰胺
参考文献:Pyrazine Derivative And Application Thereof In Inhibiting Shp2
标题:Pyrazine Derivative And Application Thereof In Inhibiting Shp2
摘要:本发明涉及吡嗪衍生物,其在抑制shp2中的应用,以及具有化学式(I)的化合物或其药用可接受的盐,酯,异构体,溶剂合物,前药或同位素标记.化合物的化学式(I)结构如下.本发明提供的新型吡嗪衍生物具有出色的抑制shp2活性,并可用于预防和/或治疗非受体蛋白酪氨酸磷酸酶介导或依赖的疾病或紊乱.
专利信息
专利号:US-12012427-B2
优先权日:2019-10-31
标 题 :Synthesis of Fmoc-protected morpholino monomers and their use in the synthesis of morpholino oligomer
发明人:SINHA SURAJIT; KUNDU JAYANTA; GHOSH UJJWAL
权利人:INDIAN ASS FOR THE CULTIVATION OF SCIENCE
摘要:Present invention relates to stable Fmoc protected Morpholino monomers and corresponding oligonucleotides (PMO) and efficient synthesis of the same involving chlorophosphoramidate and H-Phosphonate chemistry. Successful syntheses of the oligonucleotide with higher yield and lesser time have been accomplished employing solid phase synthesis and easy deprotection of Fmoc group with Piperidine.
专利号:WO-2021014395-A1
优先权日:2019-07-24
标题:Process for the synthesis of deuterated capsaicin, capsaicinoids and synthetic capsaicin analogs
发明人:ORUGANTI SRINIVAS; AMRUTAPU SRAVANTH KUMAR; SAMPATH MAGESH; SEN SAIKAT
权利人:DR REDDY’S INST OF LIFE SCIENCES
摘要:The present application provides novel processes for the synthesis of deuterated intermediates of capsaicinoids, particularly II, III, IV and V of capsaicinoids, relating to pharmaceutical applications. The invention also provides novel intermediates of compounds of formula IX, XIV, XV, XVI, XVII, XVIII, XX and XXI utilized in the process of making deuterated capsaicin II, III, IV and V.
专利号:US-2024409495-A1
优先权日:2021-10-20
标 题 :Process for the preparation of 2,7-dihydroxy-9-fluorenone useful for the synthesis of tilorone and its salts
发明人:JAISANKAR PARASURAMAN; DEB INDUBHUSAN; BHATTACHARJEE PINAKI
权利人:COUNCIL SCIENT IND RES
摘要:Methods involving preparation of building blocks of 2,7-dihydroxy-9-fluorenone toward the synthesis of tilorone dihydrochloride salt and other salts (bromide, iodide, fluoride, citrate, oxalate, maleate, phosphate, tartrate, triflate, trifluoroacetate, tetrafluoroborate) of tilorone, and an efficient, safe, cost effective method for the preparation of 2,7-bis-[2-(diethylamino)ethoxy]-fluorenone-9 and its various salts are developed. The methods involve oxygenation of fluorene, nitration of fluorenone, followed by reduction and diazotization toward the formation of 2,7-dihydroxy-9-fluorenone, which is the key intermediate for the formation of 2,7-bis-[2-(diethylamino)ethoxy]-9-fluorenone-dihydrochloride (Tilorone dihydrochloride) and other tilorone salts. The synthesis method has relatively simple operation, mild reaction conditions, high yield, and simple process with yields of 80-97%. Subsequent product purification of this method uses filtration and crystallization methods, avoiding the existing methods of column chromatography. Therefore, the research of its synthetic method being with a wide range of applications from the drug development and material synthesis point of view.
专利号:US-8350031-B2
优先权日:2008-06-02
标 题:Processes for the synthesis of levocetirizine and intermediates for use therein
发明人:RAO DHARMARAJ RAMACHANDRA; KANKAN RAJENDRA NARAYANRAO; GHAGARE MARUTI; CHIKHALIKAR SANDIP VASANT
权利人:CIPLA LTD; RAO DHARMARAJ RAMACHANDRA; KANKAN RAJENDRA NARAYANRAO; GHAGARE MARUTI; CHIKHALIKAR SANDIP VASANT
摘要:The present invention provides a compound of formula (IV) n nwherein R is Cl, Br, NO 2 , OH or OR′, and R′ is alkyl, and its use in the synthesis of levocetirizine, including its use in the synthesis of (−)-1-[(4-chlorophenyl)-phenylmethyl]piperazine, an intermediate useful in the synthesis of levocetirizine. The present invention also provides compounds (II) and (III) which are useful in the synthesis of compound (IV).
专利号:WO-2024193201-A1
优先权日:2023-03-22
标题:Machine learning-based multi-objective optimization method for route for synthesis of mofs
发明人:WANG GE; LIN JING; GAO HONGYI; LIU ZHIMENG; BAN TAO; LI TIAN; ZHOU SHENGLAN
权利人:UNIV BEIJING SCIENCE & TECHNOLOGY
摘要:A machine learning-based multi-objective optimization method for a route for synthesis of MOFs. The method comprises: collecting a synthesis condition for preparing Ce-UiO-66, evaluating defect content and thermal stability by means of a thermogravimetric analysis curve, and using same as an initial data set; randomly dividing the data set into a training set and a testing set, respectively modeling each performance of the Ce-UiO-66 using eight algorithms, and screening representative models used for for prediction of each performance; calculating an objective achievement probability (PA) value of each performance in a synthesis space, and expanding same to a multi-objective evaluation factor; preparing a Ce-UiO-66 material; performing a characterization test on the obtained material, and if test data does not satisfy a requirement, updating the data set and the proxy model. Being based on reliable experimental data and machine learning has the advantages of low cost, short period, and the like for optimization of catalysis and stability of MOFs, and the method can be expanded to the design of synthesis routes for other materials.
专利号:WO-2023030277-A1
优先权日:2021-08-30
标 题:Method for fully liquid-phase synthesis of grnh nonapeptide amide analog
发明人:SUN PENGCHENG; PAN JING; WU JUNYONG; TANG YONGBO; Du Yixiong; GUO LIN
权利人:HUNAN MICRO PEPTIDE BIOMEDICAL CO LTD
摘要:Provided is a method for fully liquid-phase synthesis of a GRnH nonapeptide amide analog, which belongs to the technical field of medicine synthesis. The method comprises respectively synthesizing a 'Trp-Ser-Tyr' fragment, an 'R-Leu' fragment, a 'Pyr-His' fragment and 'Arg-Pro-Hunan T', wherein, R = D-Ala (alarelin), D-Leu (leuprorelin), D-Trp (deslorelin) and D-His (histrelin), and obtaining the GRnH nonapeptide amide analog with high yield and high purity by means of a '3 +2 +2 +2' fragment condensation method. The synthesis method is environmentally friendly, mild, and free of any highly toxic and poisonable reagents. The cost is greatly reduced and the synthesis method is very suitable for large-scale production.