Co(I) catalyzed yne–ene–yne [2+2+2] cycloaddition: synthesis of highly strained pentacyclic bis-lactones. A new access to tetraaryl N-hydroxyphthalimides

Autor: Bernard Bessieres, Jacques Einhorn, Remi Poirot, Jerome Michaux

Publikováno v: Tetrahedron Letters
Tetrahedron Letters, Elsevier, 2014, 55 (17), pp.2849-2852. ⟨10.1016/j.tetlet.2014.03.081⟩

Highly strained pentacyclic bis-lactones can be obtained by an unusual Co(I) catalyzed [2+2+2] cycloaddition of an yne–ene–yne diester substrate. These bis-lactones can be further transformed into tetraaryl N-hydroxyphthalimides which are potenti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e34fc7d3381ac96e498e02bd122361b5
https://doi.org/10.1016/j.tetlet.2014.03.081

Structure and Dynamics of the Excited States of 1,3-Diarylisobenzofurans: An Experimental and Theoretical Study

Autor: Svetlana Tsekhanovich, Jacques Einhorn, Frédérique Loiseau, Jérôme Jacq, Jérôme Chauvin, Cathy Einhorn, Damien Jouvenot, Bernard Bessieres, Maylis Orio

Publikováno v: Photochemistry and Photobiology
Photochemistry and Photobiology, Wiley, 2012, 88, pp.633-638. ⟨10.1111/j.1751-1097.2012.01090.x⟩
Photochemistry and Photobiology, 2012, 88, pp.633-638. ⟨10.1111/j.1751-1097.2012.01090.x⟩

The emission properties of a series of substituted 1,3-diarylisobenzofurans have been studied. Most compounds exhibit very intense emission in the nanosecond timescale at room temperature as well as at 77 K. The room temperature emission is attribute

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::89bf97ea634710dfb92e0a45b1b177c6
https://doi.org/10.1111/j.1751-1097.2012.01090.x

Iodomethyl Group as a Hydroxymethyl Synthetic Equivalent: Application to the Syntheses of d-manno-Hept-2-ulose and l-Fructose Derivatives

Autor: Bernard Bessieres, Christophe Morin

Publikováno v: The Journal of Organic Chemistry. 68:4100-4103

The one-carbon elongation of aldoses to ketoses using iodomethyllithium as the key reagent in the homologation step is exemplified by the preparation of two carbohydrates of chemical and biological interests: d-manno-hept-2-ulose from d-mannose and l

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0b4872c57b71050165abadffba92283a
https://doi.org/10.1021/jo0342166

Bis-ortho-metalation/silylation of unprotected o-phthalic acids. Straightforward access to new silylated N-hydroxyphthalimide (NHPI) analogs

Autor: Jacques Einhorn, Jerome Michaux, Bernard Bessieres

Publikováno v: Tetrahedron Letters
Tetrahedron Letters, Elsevier, 2012, 53 (1), pp.48-50. ⟨10.1016/J.Tetlet.2011.10.114⟩

The one pot, in situ ortho-metalation/silylation of unprotected o-phthalic acids using lithium tetramethylpiperidide (LiTMP) and chlorotrimethylsilane is described. This method gives a straightforward access to silylated phthalic anhydrides. These ca

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::61fcc7070fefdd02b83988f3cd72844c
https://hal.archives-ouvertes.fr/hal-01654794

Efficient Synthesis of Substituted Polyarylphthalimides via Cycloaddition of Cyclopentadienones with 2-Bromomaleimide

Autor: Cathy Einhorn, Jacques Einhorn, Bernard Bessieres, Florian Berthiol, Remi Vanel

Publikováno v: SYNLETT
SYNLETT, Georg Thieme Verlag, 2011, 2011 (09), pp.1293-1295. ⟨10.1055/S-0030-1260556⟩

Functionalized tetraarylphthalimides or diarylphthalimides fused with an acenaphthene moiety have been prepared in one step from 2-bromomaleimide and tetraarylcyclopentadienones (tetracyclones) or 7,9-diaryl-8H-cyclopentacenaphthylene-8-ones (acecycl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::56003beb0c3fae51bdf03b588358e914
https://hal.archives-ouvertes.fr/hal-01655243