Results 11 to 20 of about 166,235 (318)
Solvent-Free C-3 Coupling of Azaindoles with Cyclic Imines
Molecules, 2019 By direct coupling 7-azaindole and cyclic imines, such as 3,4-dihydroisoquinoline, 6,7-dihydrothieno[3,2-c]pyridine, 3,4-dihydro-β-carboline, and 4,5-dihydro-3H-benz[c]azepine, new 3-substituted 7-azaindole derivatives have been synthesized.
Khadija Belasri +2 more
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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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Molecules, 2023 Chiral 2-substituted chromanes are important substructures in organic synthesis and appear in numerous natural products. Herein, the correlation between specific optical rotations (SORs) and the stereochemistry at C2 of chiral 2-substituted chromanes was
Bei-Bei Yang +5 more
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Stereo-Aware Extension of HOSE Codes [PDF]
, 2019 The file attached to this record is the author's final peer reviewed version. The Publisher's final version can be found by following the DOI link.Descriptions of molecular environments have many applications in chemoinformatics, including chemical shift
Johnson, Sean R., Kuhn, Stefan
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X-ray Diffraction, Electronic Circular Dichroism, and Quantum Mechanics (TD-DFT) Investigations on 4 Dehydroxyaltersolanol A, a Secondary Metabolite from Endophytic Fungus Nigrospora oryzae [PDF]
Research Journal of PharmacognosyBackground and objectives: A tetrahydro anthraquinone derivative, 4-dehydroxyaltersolanol A, has been obtained from Nigrospora oryzae, which was isolated from Uncaria borneensis Havil as an endophytic fungus.
Fatimah Bebe Mohamed Hussain +8 more
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Molecules, 2021 2,5-diketopiperazines (DKPs) are cyclic dipeptides ubiquitously found in nature. In particular, cyclo(Phe-Pro), cyclo(Leu-Pro), and cyclo(Val-Pro) are frequently detected in many microbial cultures.
Alison Domzalski +6 more
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Atropselective syntheses of (-) and (+) rugulotrosin A utilizing point-to-axial chirality transfer [PDF]
, 2015 Chiral, dimeric natural products containing complex structures and interesting biological properties have inspired chemists and biologists for decades.
A Zask +53 more
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The Metallacyclopentane-Olefin Interchange Reaction [PDF]
, 1977 Tris(triphenylphosphine)tetramethylenenickel(II) and biscyclopentadienyltetramethylenetitanium, prepared from the reaction of a 1,4-dilithiobutane and the transition metal dihalides react with olefins to produce substituted metallacyclopentanes; the ...
Grubbs, Robert H., Miyashita, Akira
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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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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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