甲酰化

For developing an immunoassay for multiple residues of pyrethroid pesticides, the hapten N-2- carbanmoyl-(3"-phenoxyphenyl) methyl 3-(2"-Cldoro-3",3",3"-trifluoropropenyl)-2, 2-dimethylcyclopropane- carboxylate was synthesized from cyanohydrin and 3-(2"-Chloro-3",3",3- trifluoropropenyl)-2, 2-dimethylcyclopropanecarboxylic acid via hydrolysis and esterification. The synthesis of the hapten was foundation of preparaing anti- cyhalothrin polyclonal antibodies.

为了制备对单一拟除虫菊酯高特异性的抗体，以菊酸和氰醇为起始原料，通过水解、酯化反应合成了半抗原N-2-氨甲酰-(3-苯氧基苄基)甲基-3-(2-氯-3，3，3-三氟丙烯基)-2，2-二甲基环丙烷羧酸酯，为进一步制备抗三氟氰菊酯的特异性抗体奠定基础。

The Nterminal cyclization of peptides, as one of a variety of modification introduced in sample preparation, has been preliminarily studied in this work.

目前，肽段鉴定时常用的添加残基修饰有甲硫氨酸的氧化和半胱氨酸的氨乙酰化，而对其它修饰研究很少。

From 3-chloropropene bycondensation with sodium ethylate in ethanol to form 3-ethoxypropene followed by anti-Markovnikov addition with HBr inthe presence of benzoyl peroxide.

3-氯丙烯与乙醇钠在乙醇中回流制得3-乙氧基丙烯，继而在过氧苯甲酰存在下，与溴化氢经反马氏加成制得1-溴-3-乙氧基丙烷，总收率89。

METHODS: With formamide as dispersing agent, agarose was sulfated with the method of chlorosulfonic acid-pyridine.

以琼脂糖为原料，甲酰胺为分散剂，通过氯磺酸吡啶法制备了硫酸酯化琼脂糖。

The composing of CPA is: 25% DMSO,17% formamide, 10% propane-1, 2-diol and 6% PEG.

联合玻璃化保护剂的组成为：25％DMSO、17％甲酰胺、10％1，2-丙二醇和6％聚乙二醇。

Experimental process: jing and 3- methyl -2- methyl ethyl ketonesynthesizes by the benzene zong; Again the glacial acetic acidcatalysis produces 2, 3, 3 - trimethyl - 3H - yinduo; Again has thealkylate response production yinduo iodide after the methyl iodide;The iodide takes off molecular HI under NaOH to become freejier thealkali; Adds 5 - nitryls salicylic aldehydes in the ethyl alcohol forthe solvent under if to respond finally produces 6 '- the nitryl yinduolin spiral benzene and pinan; Through the infrared spectrum andthe ultimate analysis irrevocably proved its structure, and studiedthe annulus with to open the annulus the light to send changes colorthe performance, explained in different solvent medium ultravioletabsorption spectrometry solvent effect, and the comparisondiscoloration the response speed number difference, finally mixed itadds to the methyl methacrylate, the peroxidation benzoin formyl in the plexiglass, tested 6 '- the nitryl yinduolin spiralbenzene and pinan in the glass fatigue resistance, thethermostability.

实验过程：由苯肼和3-甲基-2-丁酮合成腙；再冰醋酸催化生成2 ，3 ，3—三甲基—3H—吲哚；再经过碘甲烷发生烷基化反应生成吲哚碘化物；碘化物在NaOH下脱去一分子HI成为费歇尔碱；在乙醇为溶剂下加5－硝基水杨醛与其反应最后生成6'—硝基吲哚啉螺苯并吡喃；通过红外光谱和元素分析确证其结构，并研究了环体与开环体的光致变色性能，解释了在不同溶剂介质中紫外吸收光谱的溶剂效应，并比较褪色反应速率数的差异，最后将其掺加到甲基丙烯酸甲酯，过氧化二苯甲酰有机玻璃中，测试6'—硝基吲哚啉螺苯并吡喃在玻璃中的抗疲劳性、热稳定性。

IR studies of Co metal ion complexes with salicylaldehyde benzoyl hydrazone in solid state brings out the deprotonation of phenol in the formation of Co in pH 5—6 solution.On the contrary,the phenol is protonated in the formation of Co 2 in pH 8—10 solution,which is the same as the result of Zn 2 formation.

水杨醛苯甲酰腙钴络合物在固态的红外光谱分析表明，p H约 5— 6时，生成的络合物Co中的酚羟基脱质子，当 p H控制在 8— 10时，生成的络合物 Co 2 酚羟基质子化，即酚羟基未脱除质子，与络合物 Zn 2 的 IR结果相同。

Inulin has been modified by carbamoylation in organic solvents.

菊糖与十八烷基异氰酸酯在有机溶剂中发生甲氨酰化反应，生成的氨甲基菊糖具有表面活性。

However, LeuRS-B can catalyze mischarging of tRNA〓 by methionine or isoleucine, suggesting that it is impaired in the ability to edit incorrect products.

然而，LeuRS-B可以错误的催化异亮氨酸和甲硫氨酸误氨酰化tRNA〓，这说明该酶的"细筛"编校功能受到损害。

When SiO〓-NH〓-Rh-Co complex was used to catalyze the hydroformylation of methyl methacrylate, an optimal conversion of 93.4% and optimal selectivity of 84.4% for the normal aldehyde were both obtained at Rh/Co ratio of 2/1, which were both higher than that catalyzed by SiO〓-SiNH〓-Rh and SiO〓-Si-NH〓-Co momometallic catalysts. Clearly a synergistic action between Rh and Co atoms presented in the complex.

我们以SiO〓-Si-NH〓-Rh-Co催化甲基丙烯酸甲酯的醛化反应，当催化剂中Rh/Co比为2/1时，催化活性最高，可达93.4％，对正构产物β-甲酰异丁酸酯的选择性达到84.4％，都高于单金属催化剂，表明了金属间存在相互作用。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。