Results 71 to 80 of about 43,522 (243)

A Ca(II) Coordination Polymer of 2-Carboxybenzaldehyde: Synthesis, Crystal Structure, and Catalytic Activity in Oxidation of Benzyl Alcohol

Crystals, 2018
The coordination polymers constructed by carboxylate ligand have shown novel structures and excellent properties. Therefore, a new Ca(II) coordination polymer with 2-carboxybenzaldehyde ligand, [Ca(L)2(H2O)2]n (L = 2-carboxybenzaldehyde), has been ...
Xi-Shi Tai, Qian-Qin Guo, Peng-Fei Li, Li-Li Liu   +3 more
doaj   +1 more source

Benzylation of Benzene and Toluene with Benzyl Alcohol

Nippon kagaku zassi, 1967
ρ-トルエンスルホン酸の存在でベンジルアルコールによるペンゼンおよびトルエンのペンジル化について調べた。 反応中にトルエンスルホン酸ベンジルおよびジペンジルエーテルが生成している。未完結の反応物は蒸留時に突然反応し, ポリペンジルとρ-トルエンスルホン酸とを生成する。これはスルホン酸ベンジルの存在に起因する。反応中にできるエステルおよびエーテルもスルホン酸の存在でベンジル化を行なう。ペンジル化は水の存在によって阻害される。相対速度および異性体組成はガスクロマトグラフィーで測定された。競争実験による相対反応性紛kT/kBは4.2であり, フェニルトリルメタンの異性体組成はオルト体42.0%, メタ体6.5%, パラ体51.5%であった。これらの値は塩化ペンジル ...
openaire   +2 more sources

Unified Synthesis of Unconventional α‐Polyhalogenated Amines Through Hydroaminoalkylation

Angewandte Chemie International Edition, EarlyView.
A unified, redox‐neutral method that transforms alkenes and alkynes into α‐polyhalomethyl amines using stable hemiaminal reagents is reported. This approach enables access to CF3, CF2H, CF2Cl, and CFClH motifs, expanding halogenated amine space with broad substrate scope, functional group tolerance, and applicability to late‐stage modification of drug ...
Angela K. Hofmeister, Giulia Iannelli, Péter Angyal, Augustin Malandain, Daniel Kaiser, Boris Maryasin, Hanspeter Kählig, Matteo Barel, Gaia Novarino, Nuno Maulide   +9 more
wiley   +1 more source

Photogenerated Oxetanes as a Gateway to Uphill Cyclopropanation

Angewandte Chemie International Edition, EarlyView.
An atom‐economical route to densely functionalized cyclopropanes from furans and photochemically activated aldehydes is enabled by a unique oxetane‐to‐cyclopropane rearrangement. These cyclopropanes can be used to access complex bioactive scaffolds and serve as a platform for asymmetric cyclopropane synthesis.
Tim Köglmeier, Thomas J. Tiefel, Oliver Reiser   +2 more
wiley   +1 more source

Comparative metabolome and transcriptome revealed the CpODO1 transcription factor controlling the varied floral scent traits of three wintersweet cultivars

Horticultural Plant Journal
Wintersweet (Chimonanthus praecox), a well-known fragrant flowering shrub, is extensively planted for ornamental purpose and production of floral essential oil.
Yubing Yong, Qi Zhou, Xin Ding, Jianming Cheng, Chengcheng Zhou, Zhiguo Shen, Lin Zhang   +6 more
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NUCLEAR MAGNETIC RESONANCE THE GELLED PRODUCT OF CANNIZZARO REACTION

Avances en Ciencias e Ingeniería, 2015
The paper presents the nuclear magnetic resonance (NMR) of proton 1H, carbon 13C and two dimensional spectrums, product of a green organic synthesis of redox on the Cannizzaro reaction.
Lilia Fernández-Sánchez, Mirella Gutiérrez-Arzaluz, María de la Luz Soto-Téllez, Leonardo Hernández-Martínez, Elpidio Corral-López   +4 more
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Synthesis and Activity‐Based Protein Profiling Identifies Aldo‐Keto Reductase 1C3 as Target Protein of Myxoglucamides

Angewandte Chemie International Edition, EarlyView.
Myxoglucamide A—a novel glycolipopeptide isolated from myxobacteria—was synthesized, and activity‐based protein profiling identified aldo‐keto reductase 1C3 (AKR1C3) as its main target in human cells. Structure‐activity relationship studies, together with biophysical characterization and X‐ray crystallography, elucidated the structural basis of AKR1C3 ...
Thomas Siemon, Vivek K. Mishra, Mingming Zhao, Konrad Büssow, Alexander Popoff, Chengzhang Fu, Rolf Müller, Lothar Jänsch, Wulf Blankenfeldt, Mark Brönstrup   +9 more
wiley   +1 more source

Efficient conversion of aromatic and phenylpropanoid alcohols to acids by the cascade biocatalysis of alcohol and aldehyde dehydrogenases

Synthetic and Systems Biotechnology
Benzyl and phenylpropanoid acids are widely used in organic synthesis of fine chemicals, such as pharmaceuticals and condiments. However, biocatalysis of these acids has received less attention than chemical synthesis.
Zetian Qiu, Xiaohui Liu, Jie Yu, Yushuo Zhao, Guang-Rong Zhao, Shengying Li, Kun Liu, Lei Du, Li Ma   +8 more
doaj   +1 more source

Peptide Thioester and Triazole Derivatives Through On‐Resin Dual‐Modification of Peptide Thiosulfonates

Angewandte Chemie International Edition, EarlyView.
An on‐resin dual‐modification strategy for peptides is presented, comprising S‐alkynylation of peptide thiosulfonates and regioselective iridium‐catalyzed azide–thioalkyne cycloaddition. This method reliably provides access to peptides with intricate non‐canonical modifications, being compatible with complex peptides, alkynes and azides.
Marius Werner, Agnes Bergmann, Chenxi Liu, Mira Behnam, Christian Klein, Franziska Thomas   +5 more
wiley   +1 more source

Novel Green RP-HPLC Method for Simultaneous Determination of Sodium Diclofenac and Benzyl Alcohol as Bulk Mixtures and in Pharmaceutical Injectable Forms

مجلة جامعة دمشق للعلوم الطبية
Background: Determination of active substances in dosage forms besides the inactive ingredients, including preservatives is required as a complete analytical procedure.
Ola Mahmod Younes
doaj