標(biāo)題: Titlebook: Steric and Stereoelectronic Effects in Organic Chemistry; Veejendra K. Yadav Book 2021Latest edition The Editor(s) (if applicable) and The [打印本頁(yè)] 作者: radionuclides 時(shí)間: 2025-3-21 17:44
書目名稱Steric and Stereoelectronic Effects in Organic Chemistry影響因子(影響力)
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書目名稱Steric and Stereoelectronic Effects in Organic Chemistry網(wǎng)絡(luò)公開度學(xué)科排名
書目名稱Steric and Stereoelectronic Effects in Organic Chemistry被引頻次
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書目名稱Steric and Stereoelectronic Effects in Organic Chemistry讀者反饋
書目名稱Steric and Stereoelectronic Effects in Organic Chemistry讀者反饋學(xué)科排名
作者: arthroplasty 時(shí)間: 2025-3-21 23:39
Veejendra K. Yadavwo STS-oriented projects are being implemented as an outcome of this meeting. The first aims to enhance global radiation medicine education by building capacity among physicians, health professionals, and medical students. The second project aims to strengthen research cooperation in radiation disas作者: B-cell 時(shí)間: 2025-3-22 00:41
Veejendra K. Yadavwo STS-oriented projects are being implemented as an outcome of this meeting. The first aims to enhance global radiation medicine education by building capacity among physicians, health professionals, and medical students. The second project aims to strengthen research cooperation in radiation disas作者: miniature 時(shí)間: 2025-3-22 06:25
Veejendra K. Yadavto either reduced tube current time product, reduced tube potential, or both. Newly developed dose reduction strategies, in particular iterative reconstructions will enable to obtain CT scans of high quality with a dose close of that delivered for plain film examinations.作者: 有惡臭 時(shí)間: 2025-3-22 08:43 作者: 鄙視讀作 時(shí)間: 2025-3-22 14:09
Veejendra K. Yadavation Therapy," should be of special interest to anyone involved in the treatment of cancer by radiation. It includes a brief review of the history of the manipulation of time-dose parameters in order to improve therapeutic benefit, and an up-to-date analysis of time-dose relationships designed for 作者: ESO 時(shí)間: 2025-3-22 18:25
Veejendra K. Yadavperties, related to ternary alloys used in a FET and the structure and operation of the Metal-Semiconductor Field-Effect Transistor (MESFET) and the High Electron Mobility Transistor (HEMT), also called Modulation Doped FET (MODFET) will be described. The radiation response and hardening of MESFETs 作者: 責(zé)任 時(shí)間: 2025-3-22 22:40
Veejendra K. Yadavver, solutions for these problems have been implemented in present-day technologies, so that other degradation mechanisms have become more important. In this chapter, an overview will be given related to radiation damage in submicron BJTs and HBTs. First the different type of device ar-chitectures (作者: 溫和女人 時(shí)間: 2025-3-23 03:11
difications on various properties of polymers depends on various parameters viz. type of energy transferred (i.e., nuclear or electronic) to the target, species of ion and ion fluences. The ion-matter interaction with low energy (eV to keV) range causes implantation of the ions, while ions with high作者: 一再遛 時(shí)間: 2025-3-23 08:29
Reactions on Saturated and Unsaturated Carbons,2-migrations can take place in tandem to generate fascinating skeletons. This chemistry has been described with examples of the construction of several steroidal skeletons. Baldwin rules and the preferred .-trig over .-trig cyclization are demonstrated with examples using geometrical analysis. The s作者: Abnormal 時(shí)間: 2025-3-23 10:39 作者: mechanism 時(shí)間: 2025-3-23 15:33 作者: 思考而得 時(shí)間: 2025-3-23 21:16 作者: acclimate 時(shí)間: 2025-3-23 23:20
Steric and Stereoelectronic Effects in Organic Chemistry作者: 思考 時(shí)間: 2025-3-24 06:18
Steric and Stereoelectronic Effects in Organic Chemistry978-3-030-75622-2作者: cardiovascular 時(shí)間: 2025-3-24 09:47
Veejendra K. Yadav will appeal to both general and specialized radiologists, including pediatric radiologists, CT technologists, physicists, manufacturers, and all professionals involved in MDCT. .978-3-540-68575-3Series ISSN 0942-5373 Series E-ISSN 2197-4187 作者: 嘲弄 時(shí)間: 2025-3-24 11:18
Veejendra K. Yadav will appeal to both general and specialized radiologists, including pediatric radiologists, CT technologists, physicists, manufacturers, and all professionals involved in MDCT. .978-3-540-68575-3Series ISSN 0942-5373 Series E-ISSN 2197-4187 作者: creditor 時(shí)間: 2025-3-24 18:42
Veejendra K. Yadav will appeal to both general and specialized radiologists, including pediatric radiologists, CT technologists, physicists, manufacturers, and all professionals involved in MDCT. .978-3-540-68575-3Series ISSN 0942-5373 Series E-ISSN 2197-4187 作者: 過分自信 時(shí)間: 2025-3-24 20:43 作者: itinerary 時(shí)間: 2025-3-25 00:16
https://doi.org/10.1007/978-3-030-75622-2Steric Effects; Stereoelectronic Effects; Orbital Symmetry and Orbital Overlap Effects; Stereoelectroni作者: 柏樹 時(shí)間: 2025-3-25 06:59
A(1,2) and A(1,3) Strains, reactions such as [2,3]- and [3,3]-sigmatropic shifts, intramolecular S.2 reactions, hydroboration, and enolate alkylation is highlighted. The high diastereoselectivity observed in the reactions of enolates derived from 4-substituted .-alkanoyl-1,3-oxazolidinones (Evans enolates) with electrophiles is also discussed.作者: Friction 時(shí)間: 2025-3-25 11:21
,The Conservation of Orbital Symmetry Rules (Woodward–Hoffmann Rules),the symmetry characteristics of σ, σ*, π, and π* molecular orbitals. This is followed by a discussion of molecular orbitals and their symmetry characteristics for allyl cation, allyl radical, allyl anion, and 1,3-butadiene. The symmetry concept is applied to π.?+?π., π.?+?π., and electrocyclic ring closing and ring opening reactions.作者: 高度表 時(shí)間: 2025-3-25 13:46
,The Overlap Component of the Stereoelectronic Effect vis-à-vis the Conservation of Orbital Symmetryurse of pericyclic reactions as exemplified in this chapter. The orbital overlap factor has been discussed with examples such as the thermal fragmentations of cyclopropanated and cyclobutanated .-3,6-dimethyl-3,6-dihydropyridazine, and [1,5] sigmatropic shifts in .-2-alkenyl-1-alkylcyclopropanes and .-2-alkenyl-1-alkylcyclobutanes.作者: 加花粗鄙人 時(shí)間: 2025-3-25 17:04 作者: Minuet 時(shí)間: 2025-3-25 21:49 作者: 冷淡一切 時(shí)間: 2025-3-26 02:16
978-3-030-75624-6The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerl作者: ureter 時(shí)間: 2025-3-26 05:57
Steric and Stereoelectronic Control of Molecular Structures and Organic Reactions,ed. The application of the anomeric effect in 1,4-elimination reactions, including preservation of geometry of the newly created double bond, has been presented in detail. Brief discussions of the conformational profiles of thioacetals and azaacetals, and rate acceleration on account of σ., σ., σ., and σ. bonds have also been explained.作者: mendacity 時(shí)間: 2025-3-26 08:46 作者: atopic-rhinitis 時(shí)間: 2025-3-26 13:56 作者: 豐富 時(shí)間: 2025-3-26 18:08
Book 2021Latest editionreactivity features. This book is not only an indispensable resource for advanced undergraduate and graduate students studying the stereochemical aspects of organic reactions, but also a good reference book for all organic chemists in both industry and academia..作者: 分散 時(shí)間: 2025-3-27 00:26
profile and reactivity features. This book is not only an indispensable resource for advanced undergraduate and graduate students studying the stereochemical aspects of organic reactions, but also a good reference book for all organic chemists in both industry and academia..978-3-030-75624-6978-3-030-75622-2作者: delegate 時(shí)間: 2025-3-27 04:42 作者: 釋放 時(shí)間: 2025-3-27 06:10
Steric and Stereoelectronic Control of Molecular Structures and Organic Reactions,conformational effects in ethane, butane, cyclohexane, variously substituted cyclohexanes, and .- and .-decalins allow a good understanding of the discussions that follow. The application of these effects to E2 and E1cB reactions followed by the anomeric effect and mutarotation is discussed. The con作者: Lacunar-Stroke 時(shí)間: 2025-3-27 12:53 作者: 無瑕疵 時(shí)間: 2025-3-27 16:02
Diastereoselectivity in Organic Reactions,nh–Felkin modification of Cram’s model, Houk’s transition state model, Houk’s electrostatic model, Cieplak’s σ?→?σ*# model, and cation coordination model. The intricacies, variations, and predicted selectivities are elaborated with examples. It has been argued that Cieplak’s σ?→?σ*# model is applica作者: 小口啜飲 時(shí)間: 2025-3-27 19:12
A(1,2) and A(1,3) Strains, reactions such as [2,3]- and [3,3]-sigmatropic shifts, intramolecular S.2 reactions, hydroboration, and enolate alkylation is highlighted. The high diastereoselectivity observed in the reactions of enolates derived from 4-substituted .-alkanoyl-1,3-oxazolidinones (Evans enolates) with electrophiles作者: Anticoagulants 時(shí)間: 2025-3-27 23:27
,The Conservation of Orbital Symmetry Rules (Woodward–Hoffmann Rules),the symmetry characteristics of σ, σ*, π, and π* molecular orbitals. This is followed by a discussion of molecular orbitals and their symmetry characteristics for allyl cation, allyl radical, allyl anion, and 1,3-butadiene. The symmetry concept is applied to π.?+?π., π.?+?π., and electrocyclic ring 作者: 廚房里面 時(shí)間: 2025-3-28 05:52 作者: macabre 時(shí)間: 2025-3-28 08:23
Torquoselectivity of Conrotatory Ring Opening in 3-Substituted Cyclobutenes,or .-double bond. The inward or outward rotation of the substituent, called torquoselectivity, depends on its electronic nature. A sufficiently electron-withdrawing substituent is known to rotate inward and, likewise, electron-rich or electron-donating substituent outward. There is no known exceptio作者: 迷住 時(shí)間: 2025-3-28 10:45
Hammett Substituent Constants, more difficult by electron-rich substituents on the aromatic ring. The effect on ionization is also dependent on the position of the substituent on the ring in respect of the carboxylic acid group. While substituents on the . and . positions exert only electronic effects on ionization, substituents作者: ARIA 時(shí)間: 2025-3-28 16:41
,Relative Aromaticity of Pyrrole, Furan, Thiophene and Selenophene, and Their Diels–Alder Stereoseleitions. Many theories have been developed around this notion over a period of time, prominent among them being aromaticity index based on interaction coordinates (AIBIC), nucleus-independent chemical shift (NICS), topological resonance energy (TRE), magnetic resonance energy (MRE), ring current (RC)作者: 發(fā)怨言 時(shí)間: 2025-3-28 21:33
Miscellaneous,jugation, periselectivity, ambident nucleophiles and electrophiles, α-effect, carbene addition to 1,3-dienes, Hammond postulate, Curtin–Hammett principle, diastereotopic substituents, homotopic substituents, enantiotopic substituents, and captodative effect.作者: consolidate 時(shí)間: 2025-3-29 00:03
nt and I am very pleased that the proceedings are published in the prestigious NATO Security Through Science series. Since their discovery by Becquerel and R?ntgen, radiation and radiation detectors have played an ever more important role in medical diagnostics and therapy. The spirit of such NATO w作者: Pcos971 時(shí)間: 2025-3-29 04:18 作者: 變化無常 時(shí)間: 2025-3-29 10:16 作者: extinguish 時(shí)間: 2025-3-29 13:13
Veejendra K. Yadavled guidelines for optimization of the radiation dose when u.Because of the radiation dose delivered, multidetector row CT (MDCT) may induce cancers, and the risk of death has been estimated at up to one per 1,000 examinations. Despite this, only a small proportion of referring clinicians, radiologi
