1)dibenzalpenlpentaerythritol季戊四醇双缩苯甲醛
1.Synthesis of dibenzalpenlpentaerythritol under microwave irradiation catalyzed by sulfate;微波辐射下硫酸盐催化合成季戊四醇双缩苯甲醛
2.Catalytic synthesis of dibenzalpenlpentaerythritol by Ce-tioso_4 as composite catalyst;稀土Ce~(4+)复合钛基固体酸催化合成季戊四醇双缩苯甲醛
3.Synthesis of dibenzalpenlpentaerythritol with TiOSO_4 as catalyst;TiOSO_4催化合成季戊四醇双缩苯甲醛
2)difurfuralpenlpentaerythritol季戊四醇双缩呋喃甲醛
1.The effect of microwave irradiation time,microwave irradiation power,molar ratio,and catalyst amount on the yield of difurfuralpenlpentaerythritol was investigated.首次在微波辐射下以硫酸氢钾为催化剂无溶剂合成了季戊四醇双缩呋喃甲醛,考察了微波辐射时间、辐射功率、原料配比、催化剂用量对产率的影响。
英文短句/例句
1.Solvent-free Catalytic Synthesis of Difurfuralpenlpentaerythritol under Microwave Irradiation微波辐射无溶剂催化合成季戊四醇双缩呋喃甲醛
2.Synthesis of Pentaerythritol Diacetals and Pentaerythritol Diketals Catalyzed by P-toluene Sulphonic Acid对甲苯磺酸催化合成季戊四醇双缩醛或酮
3.An NMR Study on Pentaerythritol Diacetals with Chiral Axes含手性轴的季戊四醇双缩醛的NMR研究
4.The Synthesization of Diacetal of Pentaerythritol Catalyzed by New Solid Superacid S_2O_8~(2-)/SnO_2-SiO_2 Catalyst;固体超强酸S_2O_8~(2-),SnO_2-SiO_2催化合成季戊四醇双缩醛
5.The Synthesis of Diacetals from Aldehydes with Pentaerythritol Catalysed by Expandable Graphite可膨胀石墨催化合成季戊四醇双缩茴香醛
6.SYNTHESIS OF PENTAERYTHRITOL DIACETALS AND DIKETALS CATALYZED BY HETEROPOLYACID-POLYMER COMPOSITE FILM杂多酸-聚合物复合膜催化合成季戊四醇双缩醛(酮)
7.Synthesis of monoacetals of pentaerythritol catalyzed by iodinine supported on actived carbon活性炭负载单质碘催化合成季戊四醇单缩醛
8.Vapor--Liquid Equilibrium Data for Methanol-Tetrahydrofuran-Potassium Acetate System甲醇-四氢呋喃-乙酸钾体系汽液平衡
9.Synthesis of Poly Glyoxapentaerythritol Acetal Catalyzed by Tungstemolybdenumic Acid Supported on Silica Gel硅胶负载钨钼杂多酸催化合成聚缩季戊四醇乙二醛
10.Study on highly selective recognition of Cu~(2+) by bis(furan-2-ylmethylene)terephthaloyl-hydrazoneα-呋喃甲醛缩对苯二甲酰腙对铜离子的高选择性识别研究
11.Half-micro-quantum experiment on synthesis of furfuryl alcohol and furoic acid;呋喃甲醇和呋喃甲酸合成的半微量实验
12.Furfurylidene acetone obtained from acetone and furfuratdehyde by condensationwas used as a brightener in an acid-sodium chloride type Zn electroplating bath.由丙酮和呋喃甲醛经缩合反应所制得的呋喃叉丙酮,用作酸性氯化钠型镀锌的光亮剂。
13.SYNTHESIS OF CYCLOHEXANONE PENTAERYTHRITOL KETAL CATALYZED BY PHOSPHOTUNGSTIC ACID SUPPORTED ON ACTIVE CARBON;活性碳负载磷钨酸催化合成环己酮双缩季戊四醇
14.Synthesis and characterization of a flame retardant:pentaerythritol biphosphorate melamine salt阻燃剂季戊四醇双磷酸酯二磷酰氯缩三聚氰胺的合成及表征
15.rosin pentaerythritol ester季戊四醇松香(酯)
16.Hydrogenation of Furfural to 2-methyl Furan;糠醛催化加氢制备2-甲基呋喃的研究
17.Study on Immobilized β-D-fructofuranosidase by Cross-linking with Glutaraldehyde戊二醛交联法固定化β-D-呋喃果糖苷酶的研究
18.pentaerythritol tetrastearate季戊四醇四硬脂酸酯
相关短句/例句
difurfuralpenlpentaerythritol季戊四醇双缩呋喃甲醛
1.The effect of microwave irradiation time,microwave irradiation power,molar ratio,and catalyst amount on the yield of difurfuralpenlpentaerythritol was investigated.首次在微波辐射下以硫酸氢钾为催化剂无溶剂合成了季戊四醇双缩呋喃甲醛,考察了微波辐射时间、辐射功率、原料配比、催化剂用量对产率的影响。
3)pentaerythritol diacetal季戊四醇双缩醛
1.Efficient conversion of pentaerythritol with aldehyde or ketone to the corresponding pentaerythritol diacetal or diketal in the presence of ammonium hydrogen sulfate under microwave irradiation without solvent was achieved.无溶剂微波照射下,硫酸氢铵催化季戊四醇和醛、酮反应生成季戊四醇双缩醛、酮化合物。
2.By using paratoluenesulfonic acid as catalyst,pentaerythritol diacetal and Pentaerythritol diketal are synthesized from pentaerythritol,aldehyde and ketone.以季戊四醇和醛(酮)为原料,对甲苯磺酸为催化剂,合成了季戊四醇双缩醛(酮)化合物。
4)formaldehyde bis(pentaerythritol) acetal(BPMF)二季戊四醇缩甲醛
5)pentaerythritol diketal季戊四醇双缩酮
6)2,2-bis((benzoyloxy)methyl)-1,3-propaned季戊四醇四苯甲酸酯
延伸阅读
季戊四醇季戊四醇pentaerythritol一种多元醇，分子式C（CH2OH）4。又称四羟甲基甲烷或二羟甲基-1，3-丙二醇。白色或淡黄色结晶粉末。熔点269℃。易溶于热水，在冷水中溶解度较小，微溶于乙醇。季戊四醇与氢溴酸或氢碘酸反应，生成二卤代醇，然后再生成四卤代烃，后者与乙醇钠反应，则生成季戊四醇四乙基醚；与硝酸反应生成四硝酸季戊四醇酯，此化合物为无色晶体，熔点140～141℃，对碰撞极敏感，是强爆炸力炸药，也是长效抗心绞痛药；与氯化亚砜反应，生成亚硫酸季戊四醇酯；在盐酸或氯化锌存在下与醛或酮反应生成缩醛或缩酮，当醛量不足时只生成单缩醛。季戊四醇是用甲醛和乙醛在碱水溶液中缩合、还原制备。反应时先生成三羟甲基乙醛，然后再经甲醛还原即得产物。以上反应有较多副反应，应严格控制原料配比和反应温度。季戊四醇是制作油漆、涂料、合成树脂和炸药的重要原料。
