標(biāo)題: Titlebook: Aldol Reactions; Rainer Mahrwald Book 2009 Springer Science+Business Media B.V. 2009 Aldol Additions.Aldol Methodologies.Base.Enzymes.Lewi [打印本頁] 作者: JAR 時間: 2025-3-21 16:28
書目名稱Aldol Reactions影響因子(影響力)
書目名稱Aldol Reactions影響因子(影響力)學(xué)科排名
書目名稱Aldol Reactions網(wǎng)絡(luò)公開度
書目名稱Aldol Reactions網(wǎng)絡(luò)公開度學(xué)科排名
書目名稱Aldol Reactions被引頻次
書目名稱Aldol Reactions被引頻次學(xué)科排名
書目名稱Aldol Reactions年度引用
書目名稱Aldol Reactions年度引用學(xué)科排名
書目名稱Aldol Reactions讀者反饋
書目名稱Aldol Reactions讀者反饋學(xué)科排名
作者: prediabetes 時間: 2025-3-21 21:54
Zirconium Lewis Acids,aldol adducts (Scheme 3.1.6.1)...In addition to that, zirconium(IV) alkoxides are able to deprotonate α-carbon atoms of ketones.. By subsequent reactions with aldehydes the corresponding aldol adducts were formed.. The regioselectivity of this aldol addition is illustrated in Scheme 3.1.6.2.作者: confederacy 時間: 2025-3-22 03:17 作者: flutter 時間: 2025-3-22 06:40
Undergraduate Topics in Computer Sciencealdol adducts (Scheme 3.1.6.1)...In addition to that, zirconium(IV) alkoxides are able to deprotonate α-carbon atoms of ketones.. By subsequent reactions with aldehydes the corresponding aldol adducts were formed.. The regioselectivity of this aldol addition is illustrated in Scheme 3.1.6.2.作者: annexation 時間: 2025-3-22 10:36
f metal enolates, Lewis acids, Lewis bases and enzymes in cu.Aldol Reactions .provides a comprehensive up-to-date overview of aldol reactions including application of different metal enolates; catalytic aldol additions catalyzed by different Lewis acids and Lewis bases; enantioselective direct aldol作者: 吞噬 時間: 2025-3-22 16:11
https://doi.org/10.1007/978-3-642-69900-9 . in enantioselec-tive aldol additions.. The.-configured aldol adducts were isolated with good enantioselectivities. Furthermore, when used with aromatic ketones enantioselec-tivities up to 90% were detected (Scheme 2.5.1).作者: Metamorphosis 時間: 2025-3-22 20:17
Data Structures and Algorithms in Swiftehensive, up-to-date overview see Shiina and Fukui.. In contrast to the methods described above the stereoselectivities were strongly influenced by oxygen functionalities of the aldehydes used. These results are summarized in Scheme 3.1.2.1.作者: refine 時間: 2025-3-22 23:22 作者: flourish 時間: 2025-3-23 03:49 作者: 生存環(huán)境 時間: 2025-3-23 09:12 作者: Morbid 時間: 2025-3-23 12:00 作者: senile-dementia 時間: 2025-3-23 17:47
Book 2009nthesis of natural products are discussed. Great importance is set to the diverse possibilities of the manual of aldol reaction to install required configurations in complicated natural product synthesis..作者: 索賠 時間: 2025-3-23 19:57
https://doi.org/10.1007/978-3-642-69897-2esponding lithium enolates. The stereochemical outcome strongly depends on the geometry of the boron enolates used in these reactions. (.)-Enolates provide the .-configured aldol adducts, whereas .-aldol adducts were formed by (Z)-enolates.. These results are illustrated by the transitions states shown in Scheme 2.3.1.作者: 分開如此和諧 時間: 2025-3-24 01:25 作者: MOAN 時間: 2025-3-24 06:15 作者: 連系 時間: 2025-3-24 09:34
Boron Enolates,esponding lithium enolates. The stereochemical outcome strongly depends on the geometry of the boron enolates used in these reactions. (.)-Enolates provide the .-configured aldol adducts, whereas .-aldol adducts were formed by (Z)-enolates.. These results are illustrated by the transitions states shown in Scheme 2.3.1.作者: Vasoconstrictor 時間: 2025-3-24 13:35 作者: 滔滔不絕地講 時間: 2025-3-24 18:20
Catalytic Aldol Additions, a simple working model based on repulsive forces only. The influence of different Lewis acids, the influence of different substituents and the fate of silyl group during the reaction were not involved in this model. For further discussion and mechanistic understanding see Hiraiwa et al. and others..作者: 替代品 時間: 2025-3-24 22:53 作者: Malleable 時間: 2025-3-25 02:50
Aldol Reactions with Preformed Enolates,which is based on the use of chiral lactones.. Aldehydes and unsymmetrical ketones were added to lithium enolates of readily available chiral acetales derived from lactic acid, mandelic acid or amino acids.. High stereo selectivities were achieved. Liebeskind and Davies demonstrated that optically a作者: insincerity 時間: 2025-3-25 05:17 作者: Redundant 時間: 2025-3-25 08:38 作者: Coterminous 時間: 2025-3-25 15:34
Lewis Base-Catalysed Aldol Additions,d general procedures for the preparation of trichlorosilyl enolates of carbonyl compounds by metal exchange reactions. These are reactions between corresponding enol stannanes of ketones with SiCl., or metal exchange of trimethylsilyl enolethers with SiCl. in the presence of catalytic amounts of mer作者: formula 時間: 2025-3-25 17:37
Direct Aldol Addition,l additions high degrees of regio- and diastereoselectivities were measured. C—C bond formation was observed at the sterically more encumbered α-position of the ketones only.. Later on Tanabe and coworkers reported the in situ generation of silyl enol ethers using catalytic amounts of trimethylchlor作者: progestogen 時間: 2025-3-25 22:23 作者: 推延 時間: 2025-3-26 02:07 作者: COUCH 時間: 2025-3-26 06:35 作者: 忍受 時間: 2025-3-26 10:31 作者: 忙碌 時間: 2025-3-26 16:13 作者: Defense 時間: 2025-3-26 17:00 作者: Type-1-Diabetes 時間: 2025-3-26 21:12
Iain T. Adamson BSc, MSc, AM, PhDl additions high degrees of regio- and diastereoselectivities were measured. C—C bond formation was observed at the sterically more encumbered α-position of the ketones only.. Later on Tanabe and coworkers reported the in situ generation of silyl enol ethers using catalytic amounts of trimethylchlor作者: uncertain 時間: 2025-3-27 02:02
Iain T. Adamson BSc, MSc, AM, PhDenamine formation with a lysine residue of the active site of the enzyme. This step initiates the C—C bond formation process with an aldehyde and subsequent hydrolysis sets the aldol adduct free (Scheme 3.6.1).作者: 彎曲的人 時間: 2025-3-27 05:53
Introduction,n this field of organic chemistry, especially in the last 10 years, there is a need for giving an update and summarizing the existing differing aldol methodologies. This is of particular importance in the field of organocatalysed aldol addition.作者: senile-dementia 時間: 2025-3-27 09:36 作者: mercenary 時間: 2025-3-27 13:50 作者: 雄偉 時間: 2025-3-27 21:28
Boron Enolates,l. developed the fundamentals for this transformation.. After these initial reports the attention was drawn to the stereoselective execution of this method. The aldol addition proceeds via a chair-like, six-membered transition state, which is more rigid than those of alkali metal enolates. This is d作者: 制定 時間: 2025-3-28 00:20
Titanium Enolates,to handle.. First aldol additions of aldehydes to titanium enolates were described by Reetz and coworkers.. The titanium enolates were generated mostly by transmetallation of corresponding lithium enolates with ClTi(O.-Pr). or ClTi(NR.).. Titanium enolates were found to add .-selectively to aldehyde作者: Grating 時間: 2025-3-28 02:09
Tin Enolates,ere observed in reactions of aldehydes with tin(II) enolates of ketones. In pioneer experiments Mukaiyama and coworkers deployed chiral diamines . and . in enantioselec-tive aldol additions.. The.-configured aldol adducts were isolated with good enantioselectivities. Furthermore, when used with arom作者: 散開 時間: 2025-3-28 09:42 作者: Madrigal 時間: 2025-3-28 13:10 作者: Optic-Disk 時間: 2025-3-28 14:35
Tin Lewis Acids,tive Lewis acid with good chelation properties.. Systematic studies concerning stereo-selectivities were conducted by Heathcock. and Reetz.. For comprehensive, up-to-date overview see Shiina and Fukui.. In contrast to the methods described above the stereoselectivities were strongly influenced by ox作者: 假裝是你 時間: 2025-3-28 19:16 作者: 生意行為 時間: 2025-3-29 01:50 作者: Intend 時間: 2025-3-29 03:52 作者: figment 時間: 2025-3-29 08:17 作者: 鞭打 時間: 2025-3-29 12:50
Lewis Base-Catalysed Aldol Additions, Mukaiyama reaction, where catalytic amounts of Lewis acids were deployed in reactions with trimethylsilyl enolates, this transformation was catalysed by Lewis bases. When used with chiral Lewis bases, aldol adducts can be obtained with a high degree of enantioselectivity. For several comprehensive 作者: 無目標(biāo) 時間: 2025-3-29 17:42 作者: AGONY 時間: 2025-3-29 22:07 作者: sphincter 時間: 2025-3-30 00:47
Antibody-Catalysed Aldol Addition,dol addi-tions.. These reactions proceed via the known lysin-enamine mechanism of class I aldolases.. Synthetic working chemists designed antibodies with substrate specificity that can differ from those of natural occurring models. Lerner and Barbas developed several useful antibodies and tested the作者: 消極詞匯 時間: 2025-3-30 04:06 作者: gangrene 時間: 2025-3-30 10:16
Introduction,n this field of organic chemistry, especially in the last 10 years, there is a need for giving an update and summarizing the existing differing aldol methodologies. This is of particular importance in the field of organocatalysed aldol addition.作者: 舊石器時代 時間: 2025-3-30 16:25
Magnesium Enolates,nolates in stereoselective aldol additions was reported by Solladie and coworkers.. Deprotonation of sulfinyl acetate with .-butylmagnesium bromide yielded aldol adducts with moderate to high enantioselectivities (Scheme 2.2.1).作者: Pathogen 時間: 2025-3-30 17:31
Silver, Palladium and Platinum Lewis Acids,agisawa and coworkers developed an enantioselective Mukaiyama aldol approach based on the deployment of .-Tol-BINAP—AgF. Trimethoxysilyl enol ethers of ketones were reacted with non-enolizable aldehydes. The corresponding .-configured aldol adducts were isolated with excellent enantioselectivities (Scheme 3.1.5.1)..作者: 換話題 時間: 2025-3-30 23:34 作者: PALL 時間: 2025-3-31 03:02 作者: Paradox 時間: 2025-3-31 08:45
Miscellaneous Lewis Acids,By application of copper or tin Lewis acids in Mukaiyama aldol reactions mostly .-configured aldol adducts of enolsilanes, pyruvates and glyoxylates electrophiles were detected. In contrast to that scandium complexes proved to be effective catalysts in .-selective aldol additions of enolsilanes and ethylglyoxylate (Scheme 3.1.7.1)..作者: grandiose 時間: 2025-3-31 12:08
Undergraduate Texts in Computer Sciencen this field of organic chemistry, especially in the last 10 years, there is a need for giving an update and summarizing the existing differing aldol methodologies. This is of particular importance in the field of organocatalysed aldol addition.作者: PHAG 時間: 2025-3-31 13:23 作者: induct 時間: 2025-3-31 21:09 作者: 施魔法 時間: 2025-4-1 01:15 作者: Latency 時間: 2025-4-1 05:40 作者: ALB 時間: 2025-4-1 06:08
https://doi.org/10.1007/978-3-642-69900-9ere observed in reactions of aldehydes with tin(II) enolates of ketones. In pioneer experiments Mukaiyama and coworkers deployed chiral diamines . and . in enantioselec-tive aldol additions.. The.-configured aldol adducts were isolated with good enantioselectivities. Furthermore, when used with arom作者: GORGE 時間: 2025-4-1 11:10 作者: myriad 時間: 2025-4-1 17:21
