This paper reports the improvement on the synthesis of 5 methylisoxazol 3 formamide by Claisen condensation.
本文讨论了通过克莱森缩合反应合成5甲基异唑3甲酰胺工艺的改进。
Formamide could effectively restrain the starch retrogradation.
结果表明甲酰胺可以有效抑制淀粉回生。
That is to say, people can not touch the Formamide essentially.
也就是说很少会真正接触到甲酰胺。
And so far he also doesn't propose any prohibition to Formamide.
他们在目前为止也对甲酰胺的禁令只字未提。
The potential energy barriers of hydrogen migration of the N-fluoro-formamide are lower than that of formamide.
氟代甲酰胺的氢迁移势垒低于甲酰胺的氢迁移势垒。
The reactions are selectively compatible with such diverse slurry additives as alcohols, glycols, glycerol, urea, formamide.
与醇类，二醇类，丙三醇，尿素，甲酰胺各种浆液附加物进行反应时，在相言性方面是有选择性的。
Several kinds of novel extraction solvents were presented which mainly included N - formylmorpholine, dimethyl formamide, etc.
介绍了石油化工领域采用的几种优良抽提剂，包括N-甲酰吗啉、二甲基甲酰胺等。
In the meantime we tried other additive chemicals, such as DMSO, glycerin, formamide. They were no notable results in long PCR.
同时，我们发现其它的添加物，如DMSO，甘油，甲酰胺对长片段pcr的作用不明显。
Thermoplastic starch (TPS) plasticized with mixture of urea and formamide (UFPTPS) could effectively restrain the starch retrogradation.
使用尿素和甲酰胺混合塑化剂制备的热塑性淀粉(UFPTPS)可以有效抑制淀粉的回生。
Cellulose acetate (ca) ultrafiltration membranes are made from casting solutions obtained by dissolving ca in acetone-formamide mixed solvent.
本工作把醋酸纤维素溶解于丙酮-甲酰胺混合溶剂中，随后制成膜。
However, the Formamide without any smelling, even it is heated to the evaporation temperature, it still will not produce any ammonia that can be smelt.
但是甲酰胺没有味道，加热到蒸发的温度也不会分解产生有味道的氨出来。
By exploring the properties of more potential solvents, such as sulfuric acid and formamide, the researchers hope to expand the potential life-supporting zone.
科学家希望，通过研究更多潜在溶剂如硫酸和甲酰胺等的特性，适宜居住圈的范围能够进一步扩大。
Using potassium silicate as silicon source, formamide as catalyst, a series of silica xerogel monolithic columns with different consistencies were prepared.
以硅酸钾为硅源，甲酰胺为催化剂在毛细管内原位聚合形成干凝胶柱，制备了一系列致密度不同的整体柱。
Using phenol and benzyl chloride as raw materials and n, N-dimethyl formamide (DMF) as solvent, benzyl phenyl ether was synthesized under microwave radiation.
采用微波辐射技术，以苯酚、氢氧化钾和氯化苄为原料，N, N -二甲基甲酰胺为溶剂合成了苄苯醚。
This paper reports the improvement on the synthesis of 5 methylisoxazol 3 formamide by Claisen condensation of diethyl oxalacetate followed by cyclization and ammonolysis.
讨论了以草酸二乙酯为原料，经过克莱森缩合、环合、氨解反应合成5甲基异唑3甲酰胺工艺的改进。
The contact angles of formamide on the carbon fibres under n-alkane were measured by means of electrobalance and the surface free energy and its components of the fibres were obtained.
用电子天平法，以正烷烃-甲酰胺-炭纤维体系间接地求得了炭纤维的表面自由能及其分量。
The contact angles of formamide on the carbon fibres under n-alkane were measured by means of electrobalance and the surface free energy and its components of the fibres were obtained.
用电子天平法，以正烷烃-甲酰胺-炭纤维体系间接地求得了炭纤维的表面自由能及其分量。
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