酰化剂

xiān huà jì
  • acylating agent
酰化剂酰化剂
  1. 实验结果表明,当用甲基丙烯酰氯作酰化剂时,2~5分子中羟基的反应活性顺序是:CH2-OH>3-OH>12-OH>7-OH。

    When methacryloyl chloride was used as a acylating agent , the reactivity order of hydroxyl groups of 2 ~ 5 is CH_2-OH > 3-OH > 12-OH > 7-OH .

  2. 再用氯乙酰氯为酰化剂,精制N,N-二(β-甲氧碳酰乙基)苯胺,精制后产品平均含量为98.3%,精制过程的平均收率为90.8%。

    N , N-Di (β - methoxycarbonylethyl ) aniline was purified by using chloroacetyl chloride as the acylating agent ; the average content of the product was 98.3 % and average yield after purification was 90.8 % .

  3. 研究了以氨基葡萄糖盐酸盐(GAH)为原料、乙酸酐为酰化剂制备了N-乙酰-D-氨基葡萄糖(NAG)。

    The preparation of N-acetyl-D-glucosamine ( N AG ) by D-glucosamine hydrochloride ( GAH ) and acetic anhydride was studied .

  4. 以月桂酰氯、棕榈酰氯为酰化剂合成N-长链酰基谷氨酸,研究了合成反应机理和工艺参数,确立了较适宜的产品制造工艺,放大试验结果为收率96%-98%。

    A series of N-long chain acyl glutamic acids were synthesized from acylating agents , such as lauroyl and palmitoyl chloride . The reaction mechanism , as well as the technology parmeters were studies so that an experiments reached 96 % - 98 % k.

  5. 以1-苯基-3-甲基-5-吡唑啉酮为原料,二氧六环为溶剂,苯甲酰氯为酰化剂,合成得到了1-苯基-3-甲基-4-苯甲酰基-5-吡唑啉酮。

    With solvent dioxane , acylating agent benzoyl chloride , 1-Phenyl-3-methyl-4-benzoyl-5-pyrazolone was prepared from 1-phenyl-3-methyl-5-pyrazolone .

  6. 以乙酐作酰化剂,120℃反应;

    The reaction took place at 120 ℃ by using acetic anhydride as its acylating agent .

  7. 阐述了乙酸酐和乙烯酮作为酰化剂对芳樟醇合成乙酸芳樟酯反应的影响;

    The effects of acylating agents , acetic anhydride and ketene on synthesis of linalyl acetate from linalool were studied .

  8. 目前常采用光气和三光气作为酰化剂合成该产物。

    The Carbonic dichloride and the Trichloromethyl carbonate are two commonly used acylating reagent to product the Iminodibenzyl carbonyl chloride .

  9. 以甲胺磷为原料,醋酐为酰化剂,通过优选催化剂和优化反应温度,乙酰甲胺磷酰化收率达97%~99%。

    The acylation rate of acephate has been reached 97 % ~ 99 % by means of optimum seeking catalysts and optimization of reaction temperature .

  10. 以咪唑为催化剂,邻苯二甲酸酐&二氧六环为酰化剂,可以测定木材溶液羟基值。

    In this work , imidazole is used as catalyst and o-phthalic anhydrite mixed with 1,4-dioxane as phthalate agent in the reaction of determining hydroxyl value of wood solution .

  11. 以丁二酸酐为酰化剂,酰化双氢青蒿素得到青蒿琥酯,根据药物拼合的原理,设计、合成了多种新型青蒿素类拼合药物。

    Artesunate was synthesized by acylation of dihydroartemisinin with succinic anhydride as an acylating agent . According to the drug hybridization principles , we designed and synthesized several new artemisinin derivatives .

  12. 再用醋酐为酰化剂进行精制,精制后产品平均含量为98.5%,收率为93.8%。

    N-Ethyl-N - ( β - methoxycarbonylethyl ) aniline was purified by acetic anhydride as the acylating agent , the average purity of the product was 98.5 % and average yield was 93.8 % after purification .

  13. 酰化剂的用量2.6%~3.0%(相对于氨基硅油的质量),酰化反应温度50~55℃,酰化反应时间60~90min。

    The content of acylating agent was 2.6 % to 3.0 % ( relatively to the mass of amino silicone oil ), acylating reaction temperature was 50 ℃ to 55 ℃, and the acylating time was 60 ~ 90 minutes .

  14. 通过对其酰化原理分析,选用乙酰氯作酰化剂、二氯甲烷作酰化溶剂,测定含环氧基聚酯的羟值。

    The hydroxyl value of epoxy-containing polyester was determined by analyzing acetification principle and using acetyl chloride as acetifier and methylene chloride as solvent .