Results 31 to 40 of about 158,943 (323)
Journal of Chemical Information and Modeling, 2019 There is a renewed interest in computer-aided synthesis planning, where the vast majority of approaches require the application of retrosynthetic reaction templates.
Connor W. Coley, W. Green, K. Jensen
semanticscholar +1 more source
Modifying the stereochemistry of an enzyme-catalyzed reaction by directed evolution [PDF]
, 2003 Aldolases have potential as tools for the synthesis of stereochemically complex carbohydrates. Here, we show that directed evolution can be used to alter the stereochemical course of the reaction catalyzed by tagatose-1,6-bisphosphate aldolase.
A. Berry +27 more
core +2 more sources
Molecules, 2021 Chiral γ-ketothiols, thioacetates, thiobenzoate, disulfides, sulfones, thiosulfonates, and sulfonic acids were obtained from β-pinene for the first time.
Olga M. Lezina +4 more
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Nucleophilic substitution vs elimination reaction of bisulfide ions with substituted methanes: exploration of chiral selectivity by stereodirectional first-principles dynamics and transition state theory [PDF]
Journal of Molecular Modeling (2019) 25: 227, 2021 Control of molecular orientation is emerging as crucial for the characterization of the stereodynamics of kinetics processes beyond structural stereochemistry. The special role played in chiral discrimination phenomena has been particularly emphasized by the authors after their extensive probes of experimental control of molecular alignment and ...
arxiv +1 more source
Mannich base-connected syntheses mediated by ortho-quinone methides
Beilstein Journal of Organic Chemistry, 2018 This article provides an overview about specifically modified Mannich reactions where the process involves an ortho-quinone methide (o-QM) intermediate.
Petra Barta +2 more
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Ipertrofan Revisited—The Proposal of the Complete Stereochemistry of Mepartricin A and B
Molecules, 2021 Being a methyl ester of partricin, the mepartricin complex is the active substance of a drug called Ipertrofan (Tricandil), which was proven to be useful in treatment of benign prostatic hyperplasia and chronic nonbacterial prostatitis/chronic pelvic ...
Paweł Szczeblewski +5 more
doaj +1 more source
Femtosecond dynamics of hydrogen elimination: benzene formation from cyclohexadiene [PDF]
, 2000 Using femtosecond-resolved mass spectrometry in a molecular beam, we report real-time study of the hydrogen elimination reaction of 1,4-cyclohexadiene. The experimental observation of the ultrafast stepwise H-elimination elucidates the reaction dynamics ...
De Feyter, Steven +2 more
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Contribution of the Chemistry Institutes to the Early Development of Stereochemistry
CHIMIA, 2009 This article is a translation from German of a paper submitted by Kurt Hermann to the University of Zurich Prize committee in 1968, with additional editing by Jay Siegel.
Kurt Hermann
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Organic chemistry lecture course and exercises based on true scale models
Chemistry Teacher International, 2020 3D models of chemical structures are an important tool for chemistry lectures and exercises. Usually, simplified models based on standard bond length and angles are used.
Lederle Felix, Hübner Eike G.
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