甲腈
- 与 甲腈 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
A comparison of using two different nitriles, acetonitrile and benzonitrile, shows that benzonitrile gives higher conversion.
通过以乙腈和苯甲腈分别作为反应用腈的对比实验发现,苯甲腈的效果优于乙腈。
-
Using benzonitrile as the experimental sample, we have measured its vibrational dephasing processes at its three typical vibrational modes and obtained their vibrational dephasing time respectively.
实验用苯甲腈作为样品,对苯甲腈分子振动谱中三个典型分子振动模式的退相时间进行了测量,一次获得了分子各振动模式相应的振动退相时间。
-
It is prepared from pentachluorobenzonitrile by using KF as fluoride to substitute chlorine in the presence of benzonitrile under high temperature. But owing to the low solubility of KF and rigor synthesis condition, and the parallel auxiliary reactions, the speed of reaction as well as the yield is very low.
五氟苯甲腈的合成开发以五氯苯甲腈为原料在较高的温度下用氟化钾做氟化剂,通过取代苯环上氯原子而得到的,由于氟化钾在溶剂中溶解度低,合成条件要求苛刻,反应速度较慢,同时存在有平行竞争副反应,因而反应收率较低,国内尚无厂家生产。
-
The compound of 2, 6-Bis (4-aminophenoxy) benzonitrile (26B4APBN) was synthesized through condensation reaction between 4-aminophenol (4AP) and 2, 6-dichlorobenzonitrile.
氨基苯酚和2, 6-二氯苯腈通过缩合反应,合成得到了2, 6-双(4-氨基苯氧基)苯甲腈(26B4APBN)。
-
Benzonitrile was selectively hydrogenated into benzylamine under mild conditions over activated amorphous nickel aluminium alloy catalyst which was prepared by rapidly quenching method.
由铜鼓快速淬冷法制备的非晶态NiAl合金催化剂经活化后用于催化苯甲腈加氢制苄胺的反应,考察了溶剂种类、苯甲腈初始浓度、催化剂用量、反应温度及反应压力等因素的影响,并测定了该催化加氢反应的表观活化能。
-
Methods 4-Hydroxy- benzonitrile was treated with sodium hydrogen sulfide and anhydrous magnesium chloride in dimethyl formamide to give thioamide, which was then directly cyclized with ethyl 2-chloroacetoacetate without separation to give ethyl 2-(4-hydroxyphenyl)-4-methylthiazole-5-carboxylate(2) in one-pot; then 2 was formylated with Duff reaction adopting hexamethylenetetramine in trifluoroacetic acid to give ethyl 2-(3-formyl-4-hydroxyphenyl)-4-methylthiazole-5-carboxylate(3); finally, the target compound was obtained by the treatment of 3 with hydroxylamine hydrochloride and sodium formate in formic acid.
采用"一勺烩"方法,以4-羟基苯甲腈为起始原料,首先与硫氢化钠和无水氯化镁在N,N-二甲基甲酰胺中反应,所得中间体不经分离,直接加入2-氯乙酰乙酸乙酯进行环合反应,得到2-(4-羟基)苯基-4-甲基-5-噻唑甲酸乙酯(2);然后通过六亚甲基四胺/三氟乙酸进行Duff反应,得到2-(3-甲酰基-4-羟基)苯基-4-甲基-5-噻唑甲酸乙酯(3);再经盐酸羟胺/甲酸/甲酸钠体系脱水得到目标化合物。
-
Three ways leads to the synthesis of fenclorin, one way discussed here has 3 steps. Stepl :benzonitrile using as raw material goes though dry hydrogen chloride and becomes a-imino phenylmethyl ether after meet carbinol.
解草啶的合成主要有三条路线,本文选取合成路线是以苯甲腈为原料,经三步反应而成:1、苯甲腈在干燥的氯化氢通入,与甲醇形成亚氨基苯甲醚,通入氨气后置换甲氧基得到苯基脒盐酸盐(收率76.18%)。2、苯基脒盐酸盐在碱性条件下与丙二酸二乙酯环合而得嘧啶醇(收率84.39%)。3、嘧啶醇在三氯氧磷中羟基被氯化得到产品解草啶(收率87.29%)。
-
Benzene nitriles studied included parent benzene nitriles(cinnamonitrile,benzo nitrile,benzeneacetonitrile,isopropyl benzeneacetonitrile) and para-chloro ben zene nitriles(para-chloro cinnamonitrile,para-chloro benzonitrile,para-chloro be nzeneacetonitrile,para-chloroisopropyl benzeneacetonitrile).
所研究的苯腈类化合物包括苯腈类母体化合物(苯丙烯腈、苯甲腈、苯乙腈、异丙基苯乙腈)和对氯苯腈类化合物(对氯苯丙烯腈、对氯苯甲腈、对氯苯乙腈、对氯异丙基苯乙腈)。
-
The influences of polymerization conditions such as the dosage of cyanobenzene, catalyst, co-catalyst and polymerization temperature on the polymerization (gelation time and monomer conversion) and the swelling value of PDCPD were investigated.
考察了主要反应条件如苯甲腈的用量、聚合反应温度、主催化剂的用量和助催化剂的用量等对聚合反应速率、聚合反应转化率和PDCPD膨胀值的影响,并得到了最优的聚合反应条件:苯甲腈与WCl_6的摩尔比为3,聚合反应温度为70℃,DCPD与WCl_6的摩尔比为1500,Et_2AlCl与WCl_6的摩尔比为11。
-
Methods 4-Hydroxy- benzonitrile was treated with sodium hydrogen sulfide and anhydrous magnesium chloride in dimethyl formamide to give thioamide, which was then directly cyclized with ethyl 2-chloroacetoacetate without separation to give ethyl 2-(4-hydroxyphenyl)-4-methylthiazole-5-carboxylate(2) in one-pot; then 2 was formylated with Duff reaction adopting hexamethylenetetramine in trifluoroacetic acid to give ethyl 2-(3-formyl-4-hydroxyphenyl)-4-methylthiazole-5-carboxylate(3); finally, the target compound was obtained by the treatment of 3 with hydroxylamine hydrochloride and sodium formate in formic acid.
采用&一勺烩&方法,以4-羟基苯甲腈为起始原料,首先与硫氢化钠和无水氯化镁在N,N-二甲基甲酰胺中反应,所得中间体不经分离,直接加入2-氯乙酰乙酸乙酯进行环合反应,得到2-(4-羟基)苯基-4-甲基-5-噻唑甲酸乙酯(2);然后通过六亚甲基四胺/三氟乙酸进行Duff反应,得到2-(3-甲酰基-4-羟基)苯基-4-甲基-5-噻唑甲酸乙酯(3);再经盐酸羟胺/甲酸/甲酸钠体系脱水得到目标化合物。
- 推荐网络例句
-
The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
-
This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
-
The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力