消去反应,elimination英语短句,例句大全

消去反应,elimination
β-eliminationβ-消去反应
1.The results indicated that de-esterification at low temperature(5℃) gave lessβ-elimination reaction,with better specific viscosity retained.结果表明,低温下(5℃)碱法脱酯可将影响果胶品质的β-消去反应控制在较小程度,所得产品特性粘度能最大程度保持。
2.The results indicated that higher concentration of ammonia (4N) at low temperature (5℃) gives lessβ-elimination reaction, with better specific viscosity retained and increases the conversion of methoxyl groups to acid amide groups.结果表明,低温下(5℃)高浓度氨水(4N)脱酯可将影响果胶品质的β-消去反应控制在较小程度,所得产品特性粘度较高,酰胺化程度(DA值)较大;而低浓度氨水(1N)处理则得到酰胺化程度较低的产品。
3)heating elimination热消去反应
1.The heating elimination reaction in organic synthesis;有机合成中的热消去反应
4)β-elimination reactionβ-消去反应
1.The component analysis of the eluate of gel chromatography and the β-elimination reaction results show that the protein in the enzymatic hydrolysate of rice protein is sugar-protein complex(glycoprotein) linked by N-glycoside peptide bond.凝胶色谱洗脱组分分析和β-消去反应结果表明,酶水解所溶出的大米蛋白与糖分子仍以N-糖肽键形式连接。
2.On the basis of the analysis of the mechanism of β-elimination reaction of haloalkyl,the influence regularity of the dissolvent polority for the reaction is discussed.在分析了卤代烷β－消去反应的反应机理的基础上，讨论了溶剂的极性对反应的影响规律。
3.The results showed that low temperature(4 ℃) not only could reduce the β-elimination reaction which will impact pectin quality but also keep the viscosity of the product at a h.结果表明,低温下(4℃)碱法脱酯可将影响果胶品质的β-消去反应控制在较小程度,所得产品黏度能最大程度得到保持。
5)Hoffmann-type eliminationHoffmann型消去反应
1.Three series of target compounds, 1-(ω-haloalkyl) imidazoles 3a-3e, bis-imidazoles 5a-5b and tri-imidazoles 6a-6b have been synthesized by the selective quaterisation of 1H-imidazole-1-propanenitrile (1) with α, ω-dihalide, bis(bromomethyl) benzene or tri(bromomethyl) benzene to obtain imidazolium salts, following by Hoffmann-type elimination.1-( 2 -氰乙基 )咪唑与 α,ω-二卤代烃、二溴苄及三溴苄选择性地发生季铵化反应 ,继而在碱作用下发生 Hoffmann型消去反应 ,简便而高效地制备了 3个系列咪唑衍生物 :1 -( ω-卤烷基 )咪唑 3a～ 3e、含中心功能基的双咪唑 5 a～ 5 b和三咪唑 6 a～ 6 b,并类似地制得相应的苯并咪唑衍生物 7和 8。
6)β hydrogen elimi nationβ-H消去反应