C
Calimero Ticozzi
Researcher at Instituto Politécnico Nacional
Publications - 30
Citations - 135
Calimero Ticozzi is an academic researcher from Instituto Politécnico Nacional. The author has contributed to research in topics: Benzopyran & Hydroxymethyl. The author has an hindex of 6, co-authored 30 publications receiving 133 citations.
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Carbon-13 nuclear magnetic resonance studies of some phosphonium, arsonium, sulfonium and pyridinium keto-stabilized salts, and ylides and of their palladium(II) complexes
TL;DR: For the ylides of phosphorus, arsenic and sulfur, the data are consistent with an sp 2 -hybridized ylidic carbon with a strong, localized negative charge, while for the pyridinium ylide this charge is much more delocalized.
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Chiral homoenolate anion equivalents: synthesis of optically pure 5-substituted furan-2(5H)-ones
TL;DR: In this article, the dianion of (+)-(R)-3-[(4-methylphenyl)sulphinyl]propionic acid (1) to aldehydes affords two main diastereoisomeric β-Sulphyl-γ-lactones, pyrolysis of which gives the two enantiomers of 5-substituted furan-2(5H)-ones in optically pure form.
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Palladium(II) complexes with sulfur ylides: A new complex containing methylsulfoxonium dimethylide as a chelating ligand
TL;DR: In this paper, the complex [CH 3 SO(CH 2 ) 2 ·PdI] 2 which contains the new methylsulfoxonium dimethylide as a chelating ligand was described.
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Electron impact mass spectrometry of polyannulated oxygen heterocycles with cyclic orthoester or acetal moieties
TL;DR: The mass spectrometric behavior of the pairs of diastereoisomeric 3-methyl- and 3-phenyl-substituted 3,11b-epoxy-2,3,4,5,5a, 11b-hexahydro-5a-hydroxyoxepino[3,2-c][1]benzopyran-6-ones 5,6 and 7,8] have been studied in detail with the aid of exact mass measurements, B/E linked scans, collisional experiments and deuterium
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A comparison of electron impact mass spectrometry of isomeric pyranocoumarins (pyrano[3,2‐c][1]benzopyran‐5‐ones) and pyranochromones (pyrano[2,3‐b][1]benzopyran‐5‐ones)
TL;DR: The mass spectrometric behavior of two pairs of isomeric 2,2-dimethylpyrano[3,2c][1]benzopyran-5-ones (pyranocoumarins) and 4-hydroxymethyl-2-methylpyranos[2,3-b][1]- benzopyrans-5-, pyranochromones was studied in detail with the aid of exact mass measurements, linked scans, collisionally activated decompositions and deuterium labelling experiments as mentioned in this paper.