CAS: 5324-13-0; 2,6-Dibromo-4-Chlorophenol

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CAS号106-48-9 对氯苯酚 | CAS号1679-18-1 4-氯苯硼酸 | CAS号106-47-8 对氯苯胺 | CAS号7726-95-6 溴素 | CAS号64-19-7 冰醋酸 | CAS号10035-10-6 氢溴酸 | CAS号64-17-5 乙醇 | CAS号7782-99-2 亚硫酸 | CAS号695-96-5 2-溴-4-氯苯酚 | CAS号15969-10-5 2-溴-4-氯-6-硝基苯酚 | CAS号1570-64-5 4-氯-2-甲基苯酚 | CAS号1123-63-3 4-氯-2,6-二甲基苯酚 | CAS号76800-28-7 5,5'-dichloro-2... | CAS号76800-29-8 3-bromo-5,5'-di... | CAS号19643-45-9 2,6-二溴對苯醌

📜对氯苯酚置于potassium Bromide体系中,化学反应生成 2,6-二溴对氯苯酚
参考文献:准二元体系 Lamno3-srmno3 和 Lamno3-camno3 中的相图研究
标题:准二元体系 Lamno3-srmno3 和 Lamno3-camno3 中的相图研究
摘要:研究了准二元体系lamno 3-Srmno 3 和lamno 3-Camno 3 .两种系统在空气中低于约 1400 oc 的中间 La:Sr 和 La:Ca 比率下均显示出混溶间隙.这种现象导致单相(La,Sr)Mno 3− X 和(La,Ca)Mno 3− X 固溶体分解为富la Srmno 3− X + 富sr Lamno 3− X 和富la Camno 3− X + 富钙 Lamno 3− X 分别在较低温度下.在 1400 oc 的 Lamno 3-srmno 3 体系中,没有观测到 (La,Sr)Mno 3 随着 Sr 含量的增加从斜方晶向菱面体的结构转变,La 0.7 Sr 0.3 Mno 3 的结构被确定为斜方晶系,A = 0.54927 +/-0.0009 Nm,B = 0.54582 +/-0.0009 Nm,C 4 0.76772 +/-0.0034 Nm.
DOI:10.1557/jmr.2000.0164

专利信息

专利号:US-11440989-B2
优先权日:2018-09-17
标题:Application of Mannich base in flame-retardant polyurethane material
发明人：GUAN YONGJIAN; LI PING; LI ZHIJUN; WANG FENG; LI YUBO
权利人:JIAHUA SCIENCE & TECH DEVELOPMENT SHANGHAI LTD; JIAHUA CHEMICALS INC
摘要:Application of a Mannich base in a flame-retardant polyurethane material is provided. The Mannich base has a structure represented by a formula (I). In the Mannich base, flame-retardant groups, i.e., halogens are introduced at the second, fourth and sixth positions of a phenyl group, and flame-retardant elements, i.e., halogens and nitrogen are introduced into synthesized polyether polyol, giving the synthesized polyether polyol good flame retardance. The amount of active hydrogen in the Mannich base is small so that occurrence of side reactions during the synthesis of the polyether polyol is reduced, and the viscosity of the flame-retardant polyether polyol is lowered. Due to autocatalytic performance of tertiary amido in the flame-retardant polyether polyol, use of a catalyst can be reduced and even avoided during the synthesis. A preparation method of the Mannich base is also provided.

专利号:US-11401375-B2
优先权日:2018-09-17
标题:Flame-retardant polyether polyol as well as preparation method and application thereof
发明人：GUAN YONGJIAN; LI PING; LI ZHIJUN; WANG FENG; LI YUBO
权利人:JIAHUA SCIENCE & TECH DEVELOPMENT SHANGHAI LTD; JIAHUA CHEMICALS INC
摘要:A flame-retardant polyether polyol is provided, including a Mannich base and an epoxide. The epoxide is selected from ethylene oxide, propylene oxide and butylene oxide. The Mannich base has a structure represented by a formula (I). In the Mannich base, flame-retardant groups, i.e., halogens are introduced at the second, fourth and sixth positions of a phenyl group, and flame-retardant elements, i.e., halogens and nitrogen are introduced into synthesized polyether polyol. The amount of active hydrogen in the Mannich base is small so that side reactions during synthesis of the polyether polyol are reduced, and the viscosity of the polyether polyol is lowered. A flame-retardant polyurethane material is also provided, synthesized from raw materials comprising the above-mentioned flame-retardant polyether polyol and an isocyanate. Due to autocatalytic performance of tertiary amido in the flame-retardant polyether polyol, use of a catalyst can be reduced and even avoided during the synthesis.

专利号:CN-117886760-A
优先权日:2023-12-18
标题 :Synthesis method of 3-(5-fluoropyrimidin-2-yl)-2-methoxyaniline

专利号:CN-110143852-A
优先权日:2019-06-28
标 题:A method of photocatalytic synthesis is at more bromophenol compounds in water phase