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- acyl carbenes 酰卡宾
- An acyl derivative of hydrazine. 酰肼一种由肼衍生而来的酰
- An example of the acyl group is the acetyl group. 乙酰基是酰基的一个例子。
- Tannase is an acyl hydrolase of tannin. 单宁酶是水解单宁酯键的酶,用途广泛,具有重要的商业价值。
- Methods:EFTA is synthesized from EATA by one step:acyl. 方法:以2-氨基-噻唑基-4-乙酸乙酯(EATA)为原料;经氨基甲酰化反应得到 EFTA.
- Phenyl(or polyphenyl)substituted epoxides serve as excellent precursors to phenyl(or diphenyl)carbenes. 某些苯代(或多苯)环氧化物是制取带苯环(或二苯)碳烯的极好原料。
- They said(say) hydrogen proxde[hydrogen peroxide] or carben pioxide[carbamide peroxide] may also help. 他们说过氧化氢或过氧化脲也有帮助。
- Lastly,the development of Ni catalyst of heterocyclic carbenes,heterogeneous catalyst and their advantages are summarized. 介绍了新型的含氮杂环卡宾及非均相镍催化剂的发展现状及其特点。
- Use of ammonia gas: fertilizer and various ammonia containing compound, various amidogen, acyl and other ammonia containing testing agents (explosives) etc. 氨气用途:化肥和各种含氨化合物。各种胺基、酰基、硝酸和各种含氨制试剂(炸药)等。
- The acyl chloride product was fluorinated by potassium fluoride and esterified by methanol to synthesize dimethyl tetrafluoroterephthalate. 以氟化钾为氟化剂,环丁砜为溶剂置换氟化,再与甲醇酯化得到四氟对苯二甲酸甲酯;
- Structure 4 is the reaction intermediate for H2C=C(OH)Na to serve as acyl anion equivalent. H_2C=C(OH)Na具有双重反应性;结构4是发生亲核反应的中间体;发生类卡宾反应时经过类似构型2的中间状态.
- Lipid peroxidation was induced in wistar rat liver by carben tetrachloride (CCl 4) for studying the effect of LbL on the liver. 为观察宁夏枸杞(LbL)对大鼠肝脏的影响,用四氯化碳(CCl4)诱发大鼠肝脂质过氧化。
- The effects of organic solvents, acyl donors and amounts of lipase on the reaction were studied. 攷察溶剂、酰基供体和加酶量对反应的影响,确定有机相中酶促拆分环氧丙醇的最适反应条件。
- The mechanism and the various factors influencing the 1,4 addition of Carbenes to dienes as well as the applications of these reactions in organic synthesis are reviewed. 讨论了卡宾1,4-加成反应的机理、影响因素以及1,4-加成在有机合成中的特殊应用。
- Maltose fatty acid ester was prepared with maltose and fatty acyl chloride in the presence of catalyst. 以麦芽糖和脂肪酰氯为原料,制备麦芽糖脂肪脂酸酯。
- During the sizing treatment, the influence of carben fiber surface and matrix property on the inter facial shear strength are also described. 同时也总结了上浆处理中碳纤维表面性质及树脂基体性能对复合材料层间剪切强度的影响。
- In addition, the effect of concentration of acyl chloride on the rate of ammonolysis was very small. 但在反应后期,反应速率呈明显的二级反应特征。
- In the depth of velar, fat acid can enter automaticity acyl to change the thoroughfare of action. 在膜的深处,脂酸能进入自动性酰化作用的通途。
- If iron chela mixture goes the Yi Ke application such as amine of iron careless acyl, with promoting iron excrete. 铁螯合剂如去铁草酰胺等亦可应用,以促进铁的排泄。
- In the five kinds of N,N dialkylacylamides the longer the carbochain of their acyl is and the shorter th... 在5种N,N-二烷基酰胺类物质中,酰基碳链越长、氮烷基碳链越短则其集油能力越强。