1)pinacol片呐醇
1.Studies on the Knoevenagel Reaction and Pinacol Coupling Reaction Under Ultrasonic Irradiation;超声波辐射下，Knoevenagel反应和片呐醇合成反应的研究
2.Progress in pinacol coupling of aldehydes and ketones using low valent titanium is reviewed in recent years.由低价钛络合物诱发的片呐醇偶联反应,具有良好的化学选择性和立体选择性,近几年来又引起有机化学家们的极大兴趣与重视。
3.The synthetic conditions of 4,4 dimethyl 3 oxopentanenitrile prepared sequentially from acetone through pinacol,pinacolone and α chloropinacolone were investigated.对以丙酮为原料、先依次制得片呐醇、片呐酮、α 氯代片呐酮、最后由α 氯代片呐酮与NaCN反应制得 4,4 二甲基 3 氧 戊腈最后两步的反应条件进行了研究。
英文短句/例句
1.Pinacol Coupling of Aromatic Aldehydes and Ketones Induced by Low Valent Vanadium or Titanium;低价钒钛诱发芳香醛酮的片呐醇偶联
2.LVT Induced Pinacol Coupling under Ultrasound Irradiation;超声辐射下低价钛诱发的片呐醇偶联
3.Studies on the Knoevenagel Reaction and Pinacol Coupling Reaction Under Ultrasonic Irradiation;超声波辐射下，Knoevenagel反应和片呐醇合成反应的研究
4.Suddenly there was a noise of shouting which seemed to come from just behind them.忽然一片呐喊声像从他们脚边爆出来。
5.Solventless Pinacol Rearrangement Catalyzed by FeCl_3 under Microwave Irradiation微波辐射FeCl_3催化无溶剂条件下的呐醇重排
6.Pinacol Coupling of Aldehydes Mediated by Zinc in Aqueous Ammonia Media氨水介质中金属锌促进醛的(口片)呐偶联反应
7.The machine-gun fire died down a little, and at the same time a deafening roar rose around them.机关枪声小些了，但同时一片震耳的呐喊，突然从这边爆起来：
8.But on this small piece of paper are crystallized the oh-so-bitter experiences of our generation!可是这种小纸片上凝聚着我们这一代人怎样艰辛的经历呐。
9.Content Determination of Inositol in Trivitamins and Inositol Tablets by HPLC-ELSDHPLC-ELSD法测定三维肌醇片中肌醇的含量
10."Yes," stammered the old man.“不错。” 老人呐呐地说。
11.Angry shouts went up and a hail of stones and clods came flying over from the back of the crowd, this time hitting the car.一片声呐喊，又是阵头雨似的碎石子和泥块从她们背后飞出来，落在车上。
12."The double-reed "sona"is widely used in the Near East, and asia, and is commonly played in Taoist and other ceremonies, and in opera."两个簧片的"锁呐"在近东和亚洲用得极广，常用在道教典礼仪式、其他礼仪活动及戏曲中。
13.Determination of Assay for Ethambutol hydrochloride in Ethambutol hydrochloride Tablets by RP-HPLC;RP-HPLC法测定盐酸乙胺丁醇片的含量
14.Determination of schizandrin in Yixin Ningshen tablets by HPLCHPLC测定益心宁神片中的五味子醇甲
15.Content Determination of Main Compontents in Haloperidol Tablets by HPLCHPLC法测定氟哌啶醇片中主药的含量
16.Hell, Tommy," Eddy said.“天呐，汤米，”埃迪说。
17.And what's more, she's getting better, too.并且正在康复呐。”
18.Changes of Chemical Components during the Aging Process of Flue-cured Tobacco and Their Relation to Aging Quality;烤烟片烟醇化过程中化学成分变化及与醇化质量的关系研究
相关短句/例句
semipinacone半片呐醇
1.Study on rearrangement of semipinacone and cycloheptane cation with ab initio method;半片呐醇和环庚烷正离子重排反应的从头算研究
2.Mechanism of rearrangement of semipinacone and cycloheptane cation were studied with HF method and STO-3G~* basis set.用哈特里-福克(HF)方法、STO-3G*基组,分别对半片呐醇和环庚烷正离子的重排机理进行了从头算研究,计算了半片呐醇和环庚烷正离子重排过程中的各个状态的几何构型、零点能,同时对反应路径进行了计算。
3)pinacol coupling片呐醇偶联
1.Progress in pinacol coupling of aldehydes and ketones using low valent titanium is reviewed in recent years.由低价钛络合物诱发的片呐醇偶联反应,具有良好的化学选择性和立体选择性,近几年来又引起有机化学家们的极大兴趣与重视。
2.The pinacol coupling of carbonyl compounds affording pinacols is an important method for the formation of 1, 2-diols and one of the most powerful methods for constructing carbon-carbon bond.醛酮的片呐醇偶联是合成片呐醇的经典而有效的方法之一，也是形成C-C键的有效途径，一般通过醛酮与金属试剂或金属络合物作用来实现。
3.And we have researched the pinacol coupling reactions in sunlight and ultrasound irradiation.论文综述了片呐醇偶联反应的进展，在光照或超声辐射下进行了片呐醇的合成，全文共分为四章。
4)pinacolone片呐酮
1.Oxidation reaction of pinacolone is a key step of the synthesis of tert-leucine.片呐酮氧化是制备叔亮氨酸的关键步骤,该文研究了片呐酮经过高锰酸钾氧化生成α 酮酸的反应。
2.The synthetic conditions of 4,4 dimethyl 3 oxopentanenitrile prepared sequentially from acetone through pinacol,pinacolone and α chloropinacolone were investigated.对以丙酮为原料、先依次制得片呐醇、片呐酮、α 氯代片呐酮、最后由α 氯代片呐酮与NaCN反应制得 4,4 二甲基 3 氧 戊腈最后两步的反应条件进行了研究。
5)retropinacol rearrangement反频呐醇重排
6)pinad rearrangement reaction嚬呐醇重排反应
延伸阅读
嘴呐1.谓说话吞吞吐吐。
