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Showing 1 to 9 of 9 entries
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Chromatographic resolution and elution order of alkyl aryl and aryl benzyl sulfoxides on cellulose-based chiral stationary phases.

Enantiomer

Donnoli MI, Superchi S, Rosini C.
PMID: 10857057
Enantiomer. 2000;5(2):181-8.

Several alkyl aryl and aryl benzyl sulfoxides have been prepared in optically active form via enantioselective Ti-catalyzed oxidation of the corresponding sulfides. The absolute configuration was assigned on the basis of optical rotation while in the case of some...

Circular dichroism spectra and absolute configuration of some aryl methyl sulfoxides.

Organic & biomolecular chemistry

Donnoli MI, Giorgio E, Superchi S, Rosini C.
PMID: 14584809
Org Biomol Chem. 2003 Oct 07;1(19):3444-9. doi: 10.1039/b307017d.

The absorption and circular dichroism (CD) spectra of three aryl sulfoxides, i.e. (-)-(S)-1-naphthyl methyl sulfoxide, (S)-1, (-)-(S)-1-(2-methyl)naphthyl methyl sulfoxide, (S)-2 and (-)-(S)-9-phenanthryl methyl sulfoxide, (S)-3, have been interpreted by means of the coupled oscillator model formulated by DeVoe. Theoretical...

Crystal structure of zwitterionic 3-(2-hy-droxy-2-phospho-nato-2-phosphono-eth-yl)imidazo[1,2-a]pyridin-1-ium monohydrate (minodronic acid monohydrate): a redetermination.

Acta crystallographica. Section E, Crystallographic communications

Airoldi A, Bettoni P, Donnola M, Calestani G, Rizzoli C.
PMID: 25705449
Acta Crystallogr E Crystallogr Commun. 2015 Jan 01;71:51-4. doi: 10.1107/S2056989014026863. eCollection 2015 Jan 01.

In a previous study, the X-ray structure of the title compound, C9H12N2O7P2·H2O, was reported [Takeuchi et al., (1998 ▶). Chem. Pharm. Bull. 46, 1703-1709], but neither atomic coordinates nor details of the geometry were published. The structure has been...

Determination of absolute configuration using vibrational circular dichroism spectroscopy: the chiral sulfoxide 1-(2-methylnaphthyl) methyl sulfoxide.

The Journal of organic chemistry

Stephens PJ, Aamouche A, Devlin FJ, Superchi S, Donnoli MI, Rosini C.
PMID: 11374983
J Org Chem. 2001 Jun 01;66(11):3671-7. doi: 10.1021/jo001403k.

We report the determination of the absolute configuration (AC) of the chiral sulfoxide, 1-(2-methylnaphthyl) methyl sulfoxide, 1, using vibrational circular dichroism (VCD) spectroscopy. The VCD of 1 has been measured in the mid-IR spectral region in CCl(4) solution. Analysis...

Induction of Cholesteric Mesophases by Simple Cyclic Derivatives of p,p'-Disubstituted 1,2-Diphenylethane-1,2-diols: Importance of Shape and Polarizability Effects.

The Journal of organic chemistry

Superchi S, Donnoli MI, Proni G, Spada GP, Rosini C.
PMID: 11674549
J Org Chem. 1999 Jun 25;64(13):4762-4767. doi: 10.1021/jo990038y.

A systematic study of the cholesteric induction in nematic solvents (MBBA and E7) by some cyclic derivatives of unsubstituted and p,p'-disubstituted-1,2-diphenylethane-1,2-diols shows that the values of the twisting power are significantly dependent on the nature of the link connecting...

A correlation between the absolute configuration of alkyl aryl sulfoxides and their helical twisting powers in nematic liquid crystals.

The Journal of organic chemistry

Pieraccini S, Donnoli MI, Ferrarini A, Gottarelli G, Licini G, Rosini C, Superchi S, Spada GP.
PMID: 12530879
J Org Chem. 2003 Jan 24;68(2):519-26. doi: 10.1021/jo020427j.

In this paper, for the first time, a systematic experimental and theoretical analysis of the cholesteric induction due to solutes whose chirality is originated only by a single stereogenic center has been carried out. The twisting power beta of...

Towards a correlation of absolute configuration and chiroptical properties of alkyl aryl sulfoxides: a coupled-oscillator foundation of the empirical Mislow rule?.

Chemistry (Weinheim an der Bergstrasse, Germany)

Rosini C, Donnoli MI, Superchi S.
PMID: 11205028
Chemistry. 2001 Jan 05;7(1):72-9. doi: 10.1002/1521-3765(20010105)7:1<72::aid-chem72>3.0.co;2-1.

The absorption and circular dichroism (CD) data for a series of alkyl aryl sulfoxides 1-16 of known S configuration have been analyzed. The strong bathochromic effect exerted by the nitro group in the para position of the phenyl sulfoxides...

Adherence to Vaccination Policy among Public Health Professionals: Results of a National Survey in Italy.

Vaccines

Montagna MT, De Giglio O, Napoli C, Fasano F, Diella G, Donnoli R, Caggiano G, Tafuri S, Lopalco PL, Agodi A, Gisio-SItI Working Group.
PMID: 32664507
Vaccines (Basel). 2020 Jul 11;8(3). doi: 10.3390/vaccines8030379.

Starting from 2013, the number of unvaccinated people alarmingly increased in Italy; therefore, in 2017 a new Vaccine National Plan was approved. Healthcare workers (HCWs), especially public health professionals (PHPs, i.e., workers in in the sector of hygiene and...

Synthesis and stereochemical characterization of optically active 1,2-diarylethane-1,2-diols: useful chiral controllers in the Ti-mediated enantioselective sulfoxidation.

Chirality

Donnoli MI, Scafato P, Superchi S, Rosini C.
PMID: 11317347
Chirality. 2001 May 15;13(5):258-65. doi: 10.1002/chir.1028.

The series of phenylsubstituted 1,2-diphenylethane-1,2-diols 2a-h was prepared in high chemical (70--80%) and optical yields (approximately 90%) by Sharpless syn-dihydroxylation of the corresponding (E)-1,2-diarylethenes, in turn obtained by McMurry or Wittig reactions. The enantiomeric excesses of the samples were...

Showing 1 to 9 of 9 entries