tert-butylhydroquinone 叔丁基对苯二酚(17) 叔丁基对苯二酚(3) 特丁基对苯二酚(4)   叔丁基对苯二酚     Synthesis of Tert-butylhydroquinone     叔丁基对苯二酚的合成研究 短句来源     STUDY ON SYNTHESIS OF tert-BUTYLHYDROQUINONE     叔丁基对苯二酚的合成 短句来源     Because of its high selectivity and mild condi-tions, this method is useful for preparing tert-butylhydroquinone and is promising in industrial applica-tion.     结果表明,叔丁基对苯二酚的选择性明显提高,收率为47.1％时选择性可达89.1％,具有工业化价值。 短句来源   叔丁基对苯二酚     Synthesis of Tert-butylhydroquinone     叔丁基对苯二酚的合成研究 短句来源     STUDY ON SYNTHESIS OF tert-BUTYLHYDROQUINONE     叔丁基对苯二酚的合成 短句来源     Because of its high selectivity and mild condi-tions, this method is useful for preparing tert-butylhydroquinone and is promising in industrial applica-tion.     结果表明,叔丁基对苯二酚的选择性明显提高,收率为47.1％时选择性可达89.1％,具有工业化价值。 短句来源   “tert-butylhydroquinone”译为未确定词的双语例句     Synthesis and Antioxidant Properties of Derivative of tert-Butylhydroquinone     叔丁基对苯二酚衍生物的合成及其抗氧化性能的研究 短句来源 查询“tert-butylhydroquinone”译词为用户自定义的双语例句     我想查看译文中含有：的双语例句 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法，我们为您准备了出自英文原文的大量英语例句，供您参考。   tert-butylhydroquinone Analogous processes accompany redox transformations of 2,6-di-tert-butylhydroquinone, 2,6-diphenyl-para-benzoquinone, and 2,4,6-tri-tert-butylphenol adsorbed on silica gel. 例句来源       Pinocytosis in 2,5-di-tert-butylhydroquinone-stimulated hepatocytes and evaluation of its role in Ca2+ inflow 例句来源       Addition of tert-butylhydroquinone, a compound which generates reactive oxygen species through redox cycling, also reduced expression of the NADH-cytochrome b5 reductase. 例句来源       It is found that the catalytic activity correlates well with the amount of medium-strong acid sites on the surface of the catalysts, and the selectivity towards 2-tert-Butylhydroquinone has some connection with the pore size of the catalysts. 例句来源       (v) Application of 2,5-di-tert-butylhydroquinone and internal perfusion of inositol 1,4,5-trisphosphate also activated INSC. 例句来源       更多                    tert Butylhydroquinone (TBHQ) and higher alcohols were used to synthesize a derivative of THBQ——2 teriary butyl 5 octadecyl 1,4 hydroquionone(DTBHQ).Its melting point is 147.5-149.5 ℃ and LD 50 is 4000 mg/kg.DTBHQ has good heat resistance and obvious antioxygenic activity.Its antioxygenic activity is stronger than BHA,BHT,TBHQ and V\-E.After adding DTBHQ,the oxidation stability of lard increased 6.46(100 ℃),4.13(120 ℃) and 1.71(140 ℃) times when w (DTBHQ)=0.02%,and 9.20(100 ℃),...             用叔丁基对苯二酚 (TBHQ)和高级脂肪醇可以制备一种TBHQ的衍生物——— 2 叔丁基 5 十八烷基 1,4 对苯二酚 (DTBHQ) ,该衍生物熔点为 147 5～ 149 5℃ ,大白鼠经口LD50 =40 0 0mg/kg。DTBHQ具有较好的耐热性和较好的抗氧化活性 ,在相同条件下的抗氧化能力强于BHA、BHT、TBHQ和VE,猪油中添加DTBHQ后 ,w(DTBHQ) =0 0 2 %时 ,猪油的氧化稳定性分别提高了 6 46倍 (10 0℃ )、4 13倍 (12 0℃ )和 1 71倍 (140℃ ) ,w(DTBHQ) =0 0 4%时 ,猪油的氧化稳定性分别提高了 9 2 0倍 (10 0℃ )、7 0 8倍 (12 0℃ )和 2 6 5倍 (140℃ )。DTBHQ在 185℃处理 4h ,仍可使猪油的氧化稳定性提高 3 36倍 [w (DTBHQ) =0 0 2 % ]和 4 78倍 [w(DTBHQ) =0 0 4% ]。 文摘来源          The titled compound was synthesized from hydroquinone and tert-butanol under catalysis of solid acid. The effects such as reaction time,reaction temperature, and solvents on the yield of tert-butylhydroquinone were also examined. In mixed organic solvents,the selectivity of tert-butylhydro-quinone was higher than that reported in the literature. Because of its high selectivity and mild condi-tions, this method is useful for preparing tert-butylhydroquinone and is promisin...             研究了以对苯二酚和叔丁醇为原料在固体酸催化下合成叔丁基对苯二酚,反应在极性溶剂与非极性溶剂的混和溶剂中进行。结果表明,叔丁基对苯二酚的选择性明显提高,收率为47.1％时选择性可达89.1％,具有工业化价值。 文摘来源          Synthesis of 2,5di tert butylhydroquinone by alkylation of hydroquinone with methyl tert butyl ether (MTBE) was studied. The effects of reaction time, reaction temperature and solvents on the yield of 2,5di tertbutylhydroquinone were also investigated. Under the optimum conditions: the reaction temperature about 80 ℃, the reaction time 7~8 h, n(MTBE)∶n(hydroquinone)=3∶1, m(catalyst)∶m(hydroquinone)=0.6∶1, the content of 2,5ditertbutylhydroquinone in the product reached 91.9%. ...             研究了以对苯二酚和甲基叔丁基醚 ( MTBE)为原料 ,以酸性阳离子交换树脂为催化剂合成 2 ,5二叔丁基对苯二酚 ( DBHQ)。用正交试验法 ,得到合成 DBHQ的适宜工艺条件为 :n ( MTBE)∶ n (对苯二酚 ) =3∶1 ,m (催化剂 )∶ m (对苯二酚 ) =0 .6∶ 1 ,反应时间为 7～ 8h,反应温度为 80℃ ,连续分出甲醇。在此条件下产物中的 DBHQ质量分数可达 91 .9%。 文摘来源   << 更多相关文摘         相关查询:  对查询结果不满意

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