標(biāo)題: Titlebook: Ultrasound in Synthesis; Steven V. Ley,Caroline M. R. Low Book 1989 Springer-Verlag Berlin Heidelberg 1989 alkali metal.aluminium.lithium. [打印本頁(yè)] 作者: 貧血 時(shí)間: 2025-3-21 19:27
書目名稱Ultrasound in Synthesis影響因子(影響力)
書目名稱Ultrasound in Synthesis影響因子(影響力)學(xué)科排名
書目名稱Ultrasound in Synthesis網(wǎng)絡(luò)公開度
書目名稱Ultrasound in Synthesis網(wǎng)絡(luò)公開度學(xué)科排名
書目名稱Ultrasound in Synthesis被引頻次
書目名稱Ultrasound in Synthesis被引頻次學(xué)科排名
書目名稱Ultrasound in Synthesis年度引用
書目名稱Ultrasound in Synthesis年度引用學(xué)科排名
書目名稱Ultrasound in Synthesis讀者反饋
書目名稱Ultrasound in Synthesis讀者反饋學(xué)科排名
作者: 忘恩負(fù)義的人 時(shí)間: 2025-3-21 21:15 作者: exophthalmos 時(shí)間: 2025-3-22 00:50 作者: fiction 時(shí)間: 2025-3-22 07:10 作者: 急性 時(shí)間: 2025-3-22 09:01 作者: 啜泣 時(shí)間: 2025-3-22 13:08 作者: OMIT 時(shí)間: 2025-3-22 17:16
Ultrasonic Acceleration of Organic Reactions,nometallic systems and a number of useful procedures for transformations involving non-metals have been published. For instance, amines can be iV-alkylated by alkyl halides in the presence of potassium hydroxide and a phase transfer catalyst [175]. .-benzyl glycine was readily prepared in high yield作者: Boycott 時(shí)間: 2025-3-22 21:48
Ultrasonic Acceleration of Redox Reactions,ctions that would more commonly be executed under homogeneous conditions. For instance, the reduction of aryl halides with lithium aluminium hydride occurs extremely slowly in THF solution. However, Han and Boud- jouk have reported that the reaction can be carried out in a fraction of the time if th作者: 遭遇 時(shí)間: 2025-3-23 02:14
The Effects of Ultrasound on Transition Metal Catalysts,[239]. However, it has also been clearly shown that palladium and platinum blacks prepared by reduction of the metal salts in the presence of formaldehyde had up to 30% greater surface areas and showed increased activity in a number of representative reactions. These included the decomposition of wa作者: 斷言 時(shí)間: 2025-3-23 09:31
Transition Metal Carbonyls and Ultrasound, to be available from a variety of substrates [255]. For example, they may be prepared from alkenyl epoxides or various butenediols [256] and their derivatives by treatment with tetracarbonyl iron [257]. Work in our laboratories had shown that these were useful precursors for a wide range of natural作者: ATRIA 時(shí)間: 2025-3-23 11:58 作者: Glycogen 時(shí)間: 2025-3-23 14:19
0341-2377 ctions for the past 60 years, but despite this, it did not attract the attention of synthetic chemists until recently. This arose historically from early studies which concentrated almost exclu- sively on reactions in aqueous media and was also, in some measure, due to the availability of suitable t作者: orthodox 時(shí)間: 2025-3-23 21:41
The Physical Basis of Sonochemistry, present a qualitative overview in an attempt to clarify this subject which tends to be regarded as something of a black art! For a more detailed report, interested readers are referred to Suslick’s recently published review which deals comprehensively with this aspect of sonochemistry [3, 4].作者: 傲慢人 時(shí)間: 2025-3-24 01:02
Preparation of Organoaluminium Compounds,nvolves use of Al—Mg alloys, proved unnecessary. Recent work has shown that organoaluminium species of the type R.A1.X. are available via reaction of alkyl halides with aluminium powder [80] (Scheme 18), although yields of subsequent reactions are poor.作者: CREST 時(shí)間: 2025-3-24 05:25
Intercalation Reactions,, synthesis of such compounds generally requires the use of extremely high temperatures over very long periods of time. In contrast, sonicating the reaction mixture brings the reaction to completion within hours, rather than the days required for the thermal reaction.作者: CANE 時(shí)間: 2025-3-24 06:50 作者: Delirium 時(shí)間: 2025-3-24 13:30 作者: 使聲音降低 時(shí)間: 2025-3-24 17:27 作者: 豐滿有漂亮 時(shí)間: 2025-3-24 21:56
Preparation of Activated Magnesium,vertheless, there are a number of organic halides which continue to give unsatisfactory results under these reaction conditions. As a result, much effort has been invested in examining other methods for activating the metal.作者: legitimate 時(shí)間: 2025-3-25 01:54 作者: MEAN 時(shí)間: 2025-3-25 07:11
Ultrasonic Acceleration of Organic Reactions, by sonolysis of the Cu (gly). and the relevant chloride at pH 11.0. The process was similarly successful in the case of .chlor- benzyl chloride, but only gave 5% of the TV-arylmethylated product in the case where R = .-Me [176] (Scheme 79).作者: 書法 時(shí)間: 2025-3-25 10:47
The Effects of Ultrasound on Transition Metal Catalysts,case of the palladium blacks. There is no obvious explanation for this. A similar technique was used to prepare suspensions of platinum on silica gel. Hence, reduction of solutions of platinum complexes in the presence of ultrasound (440 kHz, 5 Wcm.) increased the available surface area of platinum 作者: 閑逛 時(shí)間: 2025-3-25 14:30 作者: Femine 時(shí)間: 2025-3-25 18:58 作者: inchoate 時(shí)間: 2025-3-25 23:05 作者: MITE 時(shí)間: 2025-3-26 03:32
Steven V. Ley,Caroline M. R. Lowies to London-based ‘ladsploitation’ films, from auteur entries by Alfred Hitchcock to programme fillers by E.J. Fancey, the boxing film also serves as a prismthrough which one can trace major historical shifts in the British film industry..978-3-030-74212-6978-3-030-74210-2作者: vertebrate 時(shí)間: 2025-3-26 07:08 作者: 下邊深陷 時(shí)間: 2025-3-26 12:23
eriod 1924–81 Other indicators of economic activity shot upwards too: the number of workers in employment rose from 10?2 millions in 1932 to 11?5 millions in 1937, profits rose by to per cent and wages by 7 per cent in the same period, while real national income went up from 103 in 1932 (1925–9 annual average = l00) to 125 by 1938.作者: appall 時(shí)間: 2025-3-26 12:40 作者: 匍匐前進(jìn) 時(shí)間: 2025-3-26 19:03
Steven V. Ley,Caroline M. R. Lownge the still dominant western imperial system. Although non-European powers had been brought onto the centre of the world stage during the war, the 1920s were to see a voluntary American withdrawal from European and a partial withdrawal from Asian affairs, plus a continuing Japanese restraint in her dealings with China and South-East Asia.作者: spinal-stenosis 時(shí)間: 2025-3-26 21:24
Steven V. Ley,Caroline M. R. Lowo mass communications (little of it conducted in Britain). Discussions about the terms on which political broadcasting should be organised still hinged on the inhibiting assumption that one unbalanced programme or a single isolated incident could bring disaster — an attitude which shows little confidence in the ordinary voter.作者: 悅耳 時(shí)間: 2025-3-27 02:27 作者: GREG 時(shí)間: 2025-3-27 06:52
0341-2377 f sonochem- istry and to catalogue the instances in which ultrasound has proved useful in tack- ling synthetic problems. Our aim has been to stress the relevanc978-3-642-74674-1978-3-642-74672-7Series ISSN 0341-2377 作者: 壓碎 時(shí)間: 2025-3-27 10:26
of Irish and Jewish immigrant communities present in surrounding city centre areas, demonstrating the Britannia’s diasporic links to other British cities and centres in North America, thus providing a multifac978-1-349-69356-6978-1-137-47659-3Series ISSN 2947-5767 Series E-ISSN 2947-5775 作者: 摸索 時(shí)間: 2025-3-27 16:51 作者: 禍害隱伏 時(shí)間: 2025-3-27 20:10
Steven V. Ley,Caroline M. R. Lowwly built up the colonial forces, but it pressed ahead with the development of a Gurkha division in the British Army. Forming Britain’s only body of all-volunteer, professional soldiers, the Gurkhas were stationed in Malaya where they were supposed to train for their intended wartime role in the Middle East.作者: 文藝 時(shí)間: 2025-3-27 23:31 作者: 官僚統(tǒng)治 時(shí)間: 2025-3-28 04:42 作者: scoliosis 時(shí)間: 2025-3-28 08:00
Victorian urban entertainment culture to the modern enterta.Focusing on Glasgow’s earliest surviving music hall, the Britannia, later the Panopticon, this book explores the role of one of the city’s most iconic cultural venues within the cosmopolitan entertainment market that emerged in British cit作者: 細(xì)頸瓶 時(shí)間: 2025-3-28 13:45
Steven V. Ley,Caroline M. R. Lownsurgent and the civilian population on whose behalf he was fighting: ‘Rebellions can be made by 2 percent active in a striking force and 98 percent passively sympathetic.’. Drawn from his own limited experience of fomenting rebellion in Arabia, this and Lawrence’s many other generalisations remain 作者: 秘傳 時(shí)間: 2025-3-28 17:35 作者: 凝視 時(shí)間: 2025-3-28 20:40 作者: cravat 時(shí)間: 2025-3-28 23:44 作者: byline 時(shí)間: 2025-3-29 05:30 作者: 被告 時(shí)間: 2025-3-29 11:04
9-33 not only started earlier but was more persistent. Signs of recovery began to show themselves in late 1932, the revival became noticeable in 1933 and gathered momentum until 1937. Towards the end of that year there was some falling off closely related to the recession in the United States. But i作者: fledged 時(shí)間: 2025-3-29 11:36 作者: Ingrained 時(shí)間: 2025-3-29 19:23 作者: Aspirin 時(shí)間: 2025-3-29 22:39
Steven V. Ley,Caroline M. R. Lownesses and the strength of the new challenges emerging from beyond Europe that hers was not to be the dominant voice at the peace conferences. The general sense of relief at the ending of the war served initially to disguise this fact. The subsequent unfolding of events was to reveal that three weig作者: 一條卷發(fā) 時(shí)間: 2025-3-30 02:09
Steven V. Ley,Caroline M. R. Lowlting in a rapid deterioration in performance for both it and the units it served. The structural reorganization spurred by combat proved too great a burden for a communication system already buckling under the strain of Phoney War routine; any benefits were dwarfed by massive duplication, the isola作者: Encephalitis 時(shí)間: 2025-3-30 08:00
Steven V. Ley,Caroline M. R. Lowinancial institutions and financial markets, but these are not the whole of the financial system, and they are not even an essential part of it. Of course, no financial system can develop very far without the aid of specialised financial institutions and financial markets, but there are still primit作者: Generator 時(shí)間: 2025-3-30 11:48
Steven V. Ley,Caroline M. R. Low beforehand programmes like . and . had been presenting the leaders and issues around which the campaign was to turn. After the dissolution party broadcasts, discussions, news and features brought the 1964 election more extensively into more homes than any before. But the manifest ubiquity of televi作者: chuckle 時(shí)間: 2025-3-30 15:12 作者: 機(jī)制 時(shí)間: 2025-3-30 17:28
Reactivity and Structure: Concepts in Organic Chemistryhttp://image.papertrans.cn/u/image/940631.jpg作者: 館長(zhǎng) 時(shí)間: 2025-3-30 23:39
