17 results

1-{4-[(Hexyloxy)methyl]pyridin-2-yl}ethanone

Disciplines : chemistry, organic
Collected date : 2016
Creators : Florian Charrier

A new member of the 2-acetylpyridine family has been prepared and characterized by NMR and IR spectroscopies.

Antimicrobial Activity and DFT Studies of a Novel Set of Spiropyrrolidines Tethered with Thiochroman-4-one/Chroman-4-one Scaffolds

A novel series of 14 spiropyrrolidines bearing thiochroman-4-one/chroman-4-one, and oxindole/acenaphthylene-1,2-dione moieties were synthesized and characterized by spectroscopic techniques, as well as by three X-ray diffraction studies, corroborating the stereochemistry. Quantum chemical ...

1-(4-Formyl-2,6-dimethoxyphenoxy)-4-chlorobut-2-yne

Disciplines : chemistry, organic
Collected date : from 2020 to 2021
Creators : Jérôme Husson

A reaction of biomass-derived aldehyde synringaldehyde and half an equivalent of 1,4-dichlorobut-2-yne was attempted in order to obtain a bis-aldehyde with an alkyne spacer. The reaction was carried out in a basic media to effect bis O-alkylation, as described in literature for the preparation of ...

4′-(5-Methylfuran-2-yl)-2,2′:6′,2″-terpyridine: A New Ligand Obtained from a Biomass-Derived Aldehyde with Potential Application in Metal-Catalyzed Reactions

Disciplines : chemistry, organic
Collected date : from 2017 to 2018

The new ligand 4′-(5-methylfuran-2-yl)-2,2′:6′,2″-terpyridine (1) was prepared in one step from 2-acetylpyridine and 5-methylfurfural. The latter is an aldehyde that can be readily obtained from biomass. The new terpyridine molecule was characterized by 1H and 13C-NMR spectroscopy as well as by ...

4,4″-Dichloro-4′-(2-thienyl)-2,2′:6′,2″-terpyridine

Disciplines : chemistry, organic
Collected date : from 2017 to 2018

A new thiophene-substituted terpyridine derivative has been prepared and characterized. This ligand features a thiophene heterocycle (as an electrochemically polymerizable unit) as well as two chlorine atoms for further functionalization.

4′-(N-(Propan-1,2-dienyl)pyrrol-2-yl)-2,2′:6′,2″-terpyridine

Disciplines : chemistry, organic
Collected date : from 2018 to 2019

A new pyrrole-substituted terpyridine derivative that possesses an allene moiety was obtained as an “unexpected” sole product during an attempt to alkylate the N-atom of pyrrole with propargyl bromide in order to obtain an alkyne-functionalized terpyridine.

4′-(5-n-Propylthiophen-2-yl)-2,2′:6′,2″-terpyridine

Disciplines : chemistry, organic
Collected date : 2020

A new thiophene-substituted terpyridine derivative has been prepared through the reaction between 5-n-propylthiophene-2-carboxaldehyde and 2-acetylpyridine. This terpyridine derivative bears an alkyl chain linked via a thiophene heterocycle.

The 10 parsec sample

Disciplines : astronomy & astrophysics
Collected date : from 25 Jul 2014 ongoing
Creators : Céline Reylé

Revised census of the 10 parsecs sample. The catalogue contains 540 stars, brown dwarfs, and exoplanets in 339 systems, within 10 pc from the Sun. This list is as volume-complete as possible from current knowledge and it provides benchmark stars that can be used, for instance, to define calibration ...

The Gaia catalogue of nearby stars

Disciplines : astronomy & astrophysics
Collected date : from 25 Jul 2014 ongoing
Creators : Céline Reylé

We provide the community with a large, well-characterised catalogue of objects in the solar neighbourhood. This is a primary benchmark for measuring and understanding fundamental parameters and descriptive functions in astronomy. We have produced a catalogue of 331 312 objects that we estimate ...

Accurate SB2 orbits for 10 binaries and masses of the components of 5 binaries

Disciplines : astronomy & astrophysics
Collected date : from 28 Oct 2006 to 21 Aug 2018

Double-lined spectroscopic binaries (SB2s) are one of the main sources of stellar masses, as additional observations are only needed to give the inclinations of the orbital planes in order to obtain the individual masses of the components. For this reason, we are observing a selection of SB2s using ...

Characterising low-mass dense cores with the Onsala 20m radiotelescope

Disciplines : astronomy & astrophysics
Collected date : from 18 Jan 2019 to 28 Jan 2019
Creators : Julien Montillaud

The data set contains spectra of rotational emission of 12CO, 13CO, C18O (J=1-0), CS (2-1), and N2H+ (J=1-0) for 159 low-mass sources from the dense-core catalogue of the Galactic Cold Cores programme (Montillaud et al. 2015, A&A). The spectra were obtained by pointed observations using the Onsala ...

COMMON: COMplete view of the MONoceros OB1 molecular complex

Disciplines : astronomy & astrophysics
Collected date : from Mar 2019 ongoing
Creators : Julien Montillaud

The record presents the millimetre observations of the Monoceros OB 1 molecular cloud obtained with the TRAO-14m telescope (South Korea) in the frame of the large programme COMMON. The targeted lines are 12CO and 13CO (J=1-0) with angular resolution ~50 arcsec, spectral resolution 0.2 km/s, and ...

Three-Component Access to Functionalized Spiropyrrolidine Heterocyclic Scaffolds and Their Cholinesterase Inhibitory Activity

Disciplines : chemistry, organic
Collected date : from 2019 to 2020

A novel one-pot [3+2]-cycloaddition reaction of (E)-3-arylidene-1-phenyl-succinimides, cyclic 1,2-diketones (isatin, 5-chloro-isatin and acenaphtenequinone), and diverse α-aminoacids such as 2-phenylglycine or sarcosine is reported. The reaction provides succinimide-substituted dispiropyrrolidine ...

VizieR Online Data Catalog: Colors of the Outer Solar System Origins Survey

Disciplines : astronomy & astrophysics
Collected date : from 21 Aug 2014 to 2 Jan 2016

All the Colors of the Outer Solar System Origins Survey (Col-OSSOS) targets are drawn from the sample of over 800 trans-Neptunian objects (TNOs) and Centaurs (mr=21.8-25.2mag; 3.6<Hr<14.5mag) found by the OSSOS (Bannister+ 2016, J/AJ/152/70 ; 2018ApJS..236...18B 2018ApJS..236...18B), a survey with ...

VizieR Online Data Catalog: Outer Solar System Origins Survey (OSSOS). I

Disciplines : astronomy & astrophysics
Collected date : from 1 Feb 2013 to 31 Jul 2014

The Outer Solar System Origins Survey (OSSOS) observations are acquired in blocks: contiguous patches of sky formed by a layout of adjoining multiple 0.90deg2 MegaCam fields. The OSSOS discovery and tracking program uses the Canada-France-Hawaii Telescope (CFHT) MegaPrime/MegaCam. This paper covers ...

GaiaSimu Universe Model Snapshot

Disciplines : astronomy & astrophysics
Collected date : 2014
Creators : Annie Robin

GUMS-10 is the 10th version of the Gaia Universe Model Snapshot, a simulation of the expected contents of the Gaia catalogue run at the MareNostrum supercomputer. The simulated catalogue will be made publicly available by the DPAC on the Gaia portal of the ESA web site http://www.rssd.esa.int/gaia/

New ultracool dwarf candidates in Gaia DR2

Disciplines : astronomy & astrophysics
Collected date : from Jul 2014 ongoing
Creators : Céline Reylé

Photometric and astrometric parameters of 14915 ultra-cool dwarf candidates found in Gaia DR2.

17 results

dat@OSU

dat@OSU is a sub-portal of dat@UBFC, a metadata catalogue for research data produced at UBFC.

Terms of use
Université de Bourgogne, Université de Franche-Comté, UTBM, AgroSup Dijon, ENSMM, BSB, Arts des Metiers