作者: 表狀態(tài) 時間: 2025-3-21 21:15 作者: Nmda-Receptor 時間: 2025-3-22 00:33
Alkynylation with Hypervalent Iodine Reagents,Whereas alkynes are traditionally added as nucleophiles into organic molecules, hypervalent iodine reagents offer a unique opportunity for the development of electrophilic alkyne synthons. Since 1985, alkynyliodonium salts have been intensively used for the alkynylation of nucleophiles, in particula作者: MAL 時間: 2025-3-22 06:41 作者: 恭維 時間: 2025-3-22 11:59 作者: 易于出錯 時間: 2025-3-22 14:54 作者: 徹底明白 時間: 2025-3-22 19:15 作者: 愚蠢人 時間: 2025-3-22 21:20
https://doi.org/10.1007/978-1-4757-2145-4Whereas alkynes are traditionally added as nucleophiles into organic molecules, hypervalent iodine reagents offer a unique opportunity for the development of electrophilic alkyne synthons. Since 1985, alkynyliodonium salts have been intensively used for the alkynylation of nucleophiles, in particula作者: Interdict 時間: 2025-3-23 04:05 作者: 伴隨而來 時間: 2025-3-23 07:21
https://doi.org/10.1007/978-94-017-4681-6ly used for interactions undertaken by monovalent halogen derivatives. The aim of this chapter is to show that the geometric features of the bonding pattern around iodine in its hypervalent derivatives justify the understanding of some of the longer bonds as halogen bonds. We suggest that interactio作者: 抵消 時間: 2025-3-23 10:44 作者: 培養(yǎng) 時間: 2025-3-23 16:58 作者: 搖晃 時間: 2025-3-23 18:17 作者: AUGER 時間: 2025-3-23 22:53
https://doi.org/10.1007/978-1-349-06612-4Hypervalent iodine(III) reagents have been widely exploited in a diverse array of synthetic transformations. This chapter focuses on the general application of hypervalent iodine(III) reagents in the de novo synthesis and in the late stage functionalization of heterocyclic compounds.作者: 正式通知 時間: 2025-3-24 04:49
https://doi.org/10.1007/978-3-030-79812-3This chapter focuses on recent developments in metal-free and metal-catalyzed arylations with diaryliodonium salts (diaryl-λ.-iodanes). Synthetic routes to diaryliodonium salts are briefly described, and chemoselectivity trends with unsymmetric iodonium salts are discussed.作者: 遭受 時間: 2025-3-24 08:22 作者: conduct 時間: 2025-3-24 13:15 作者: Costume 時間: 2025-3-24 16:24
Welfare Economics and Social Choice TheoryThis chapter overviews the roles of transition metal complexes having the organoiodine(III) reagents iodosylarenes (ArIO) and (imino)iodoarenes (ArINR) as ligands in catalysis. Mechanistic implications are discussed.作者: malapropism 時間: 2025-3-24 20:37 作者: Osteoporosis 時間: 2025-3-25 02:30 作者: 颶風(fēng) 時間: 2025-3-25 04:49
Arylation with Diaryliodonium Salts,This chapter focuses on recent developments in metal-free and metal-catalyzed arylations with diaryliodonium salts (diaryl-λ.-iodanes). Synthetic routes to diaryliodonium salts are briefly described, and chemoselectivity trends with unsymmetric iodonium salts are discussed.作者: 寄生蟲 時間: 2025-3-25 08:44
Iodanes as Trifluoromethylation Reagents,This chapter describes synthesis, structural properties, activation modes, and applications of hypervalent iodine reagents for trifluoromethylation, thereby focusing on recent advances.作者: 貨物 時間: 2025-3-25 15:19 作者: agonist 時間: 2025-3-25 17:28 作者: 外面 時間: 2025-3-25 22:32 作者: tooth-decay 時間: 2025-3-26 00:15 作者: 預(yù)兆好 時間: 2025-3-26 07:51
https://doi.org/10.1007/978-3-319-33733-3Alkynylation; Arylation with Salts; Cyclic Iodane Derivatives; Halogen Bonding; Oxidative Coupling React作者: 縮影 時間: 2025-3-26 09:21
Alkynylation with Hypervalent Iodine Reagents,on metal catalysts. They were also highly successful for the functionalization of radicals or transition metal-catalyzed domino processes. Finally, they allowed the alkynylation of a further range of heteroatom nucleophiles, especially thiols, under exceptionally mild conditions. With these recent d作者: 符合你規(guī)定 時間: 2025-3-26 12:44 作者: SOW 時間: 2025-3-26 19:31 作者: maverick 時間: 2025-3-26 21:04
https://doi.org/10.1007/978-94-017-4681-6ly match the halogen bond definition and geometrical prerequisites. The same holds for the short contacts the cation of ionic λ.-iodanes forms with lone-pair donors or the short contacts given by neutral λ.-iodanes with incoming nucleophiles. The longer and weaker bonds formed by iodine in hypervale作者: RAG 時間: 2025-3-27 02:00 作者: 項目 時間: 2025-3-27 07:34 作者: Adjourn 時間: 2025-3-27 12:43 作者: FORGO 時間: 2025-3-27 16:45 作者: crumble 時間: 2025-3-27 21:24
https://doi.org/10.1057/9780230377875high yields of pure products. Under such considerations, this chapter focuses on the oxidative coupling reactions of hypervalent iodine reagents found in total syntheses of biologically active natural products and their related compounds.作者: nepotism 時間: 2025-3-27 22:51 作者: Psa617 時間: 2025-3-28 04:06 作者: 憤怒事實 時間: 2025-3-28 08:32 作者: Motilin 時間: 2025-3-28 13:42
Book 2016s all areas of chemical science including the interfaces with related disciplines such as biology, medicine and materials science. The goal of each thematic volume is to give the non-specialist reader, whether in academia or industry, a comprehensive insight into an area where new research is emergi作者: aquatic 時間: 2025-3-28 17:55
Aminations with Hypervalent Iodine,hybridized carbon atoms. These developments demonstrate that hypervalent iodine(III) methodology has reached a high level in amination chemistry. The individual reactions are discussed with a focus on mechanistic details and emphasis is made to the underlying hypervalent iodine reagents, for which structural information is available.作者: Cirrhosis 時間: 2025-3-28 21:42
Use of Diagnostic Algorithms in Immunocytochemistry,ocess that is equally as fallible in pathology as in the political arena. A wise pathologist may also resort to one or more of several ancillary techniques designed to provide additional information upon which a rational diagnosis may be founded.作者: 意外 時間: 2025-3-28 23:16
https://doi.org/10.1007/978-3-540-73645-5ass spectrometry (GC-MS), nuclear magnetic resonance (NMR), and thin-layer chromatography (TLC), etc. Hence, the present chapter focuses on various extraction and purification techniques as well as the characterization assays and tools for the exploration of extracted biosurfactants.作者: 邊緣帶來墨水 時間: 2025-3-29 05:22
Ke Ma,ChaoJun Gao,Jun Wang,Qiang Zhangeters; the organization involved in doing this, and in arranging that the parameters should be fed into the machine in the simplest possible form, used to fewer than 250 instructions and subroutines totalling about 150 instructions. This may be a rather extreme case, but it is generally true to say,作者: 無能力之人 時間: 2025-3-29 10:14
Subklassifikation schizophrener Patienten und Pr?diktion des Sp?tdyskinesierisikos mittels ereigniskeiner Fehlanordnung hippokampaler Pyramidenzellen und werden auf St?rungen der f?talen Neuroblastenwanderung zurückgeführt. Als m?gliche Ursache für die St?rung der Neuroblastenwanderung werden exogene Faktoren wie virale Infektionen der Mutter im 2. Trimenon diskutiert, ein Zusammenhang, den mehrer作者: 急急忙忙 時間: 2025-3-29 12:13
Psychodrama Applications in the Protective Measures of the Brazilian Justice Systeming in justice with psychosocial interventions with adolescents and their families through sociodramas, dramatic games, and axiodramas. This text will describe examples of experiences involving this public in various contexts of the protection system, such as in the scope of protective and socioeducational measures.作者: POWER 時間: 2025-3-29 18:55
Fachwissen Technische Akustikhttp://image.papertrans.cn/e/image/280113.jpg作者: 輕信 時間: 2025-3-29 20:15 作者: indigenous 時間: 2025-3-30 01:16
Amorphous Multinary Ceramics in the Si-B-N-C System,mposition — is quite considerable. The upper limits for thermal loads with respect to the onset of weight loss (decomposition) in an inert atmosphere, to the onset of crystallization and phase separation, and to the resistance to oxidation in air, seem to be ～2000 °C, ～1900 °C, and ～1500 °C, respect
