Výsledky vyhledávání - "Jalel Lachheb"

Calcium, Barium and Strontium apatites: A new generation of catalysts in the Biginelli reaction

Autor: Kaia Tõnsuaadu, Jalel Lachheb, Michel Gruselle, Birgit Maaten, Sana Ben Moussa, Tõnis Kanger, Béchir Badraoui, Kadri Kriis

Publikováno v: Tetrahedron
Tetrahedron, Elsevier, 2017, 73 (46), pp.6542-6548. ⟨10.1016/j.tet.2017.09.051⟩
Tetrahedron, 2017, 73 (46), pp.6542-6548. ⟨10.1016/j.tet.2017.09.051⟩

International audience; We describe herein the use of Calcium, Barium and Strontium hydroxyapatites (CaHAp, BaHAp and SrHAp) as well as CaHAp containing Magnesium, Copper, Zinc and Palladium (MgHAp, CuHAp, ZnHAp and PdHAp) as catalysts in the Biginel

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e9f10c61b5158983f2d607c24e29171a
https://hal.sorbonne-universite.fr/hal-01614924

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Chemo- and Regioselective 1,3-Dipolar Cycloaddition of 2-Diazopropane over 1,4-Benzoquinone: Synthesis of New Pyrazoloquinones

Autor: Taha Guerfel, Jalel Lachheb, Moncef Msaddek, Naoufel Ben Hamadi

Publikováno v: Synthetic Communications. 43:859-864

1,3-Dipolar cycloaddition reaction of 2-diazopropane 1 with 1,4-benzoquinone 2 carried out at −20 °C led to a minor mono-cycloadduct 4 and mixture of bis-cycloadducts 6 and 7. The same addition realized with 3H-pyrazole 7 at −60 °C for 2 h yiel

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8d45cea23163d738375b55fc23b959ba
https://doi.org/10.1080/00397911.2011.610552

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ChemInform Abstract: Chemo- and Regioselective 1,3-Dipolar Cycloaddition of 2-Diazopropane over 1,4-Benzoquinone: Synthesis of New Pyrazoloquinones

Autor: Naoufel Ben Hamadi, Moncef Msaddek, Taha Guerfel, Jalel Lachheb

Publikováno v: ChemInform. 44

1,3-Dipolar cycloaddition of diazopropane (II) with benzoquinone affords bis-cycloadducts (IV) and (V) along with minor amounts of mono-adduct (III).

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6e99b77c4e857b9c3022668870e65d98
https://doi.org/10.1002/chin.201324104

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Synthesis and photolysis behaviour of 2-(Δ1-pyrazolinyl)-Δ3(1,3,4) oxadiazolines. Application to the synthesis of gem-dimethylcyclopropane ketone

Autor: Abdelkader Khemiss, Jalel Lachheb, Marie-Thérèse Martin

Publikováno v: Tetrahedron Letters. 40:9029-9031

The photolysis of 2-( Δ 1 -pyrazolinyl)- Δ 3 (1,3,4) oxadiazoline 5 led to exclusive formation of gem -dimethylcyclopropane ketone 6 .

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8ab0924fe7429dc1f3ff08c43aa03d7f
https://doi.org/10.1016/s0040-4039(99)01920-6

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