Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Saïd Lazar"'
Autor:
Oussama Dehbi, Esam A. Ishak, Mohammed A. Bakht, Mohammed H. Geesi, Mohammed B. Alshammari, Vincent Chagnault, Abdellah Kaiba, Saïd Lazar, Yassine Riadi
Publikováno v:
Green Chemistry Letters and Reviews, Vol 11, Iss 2, Pp 62-66 (2018)
An efficient and ecofriendly method for the synthesis of disubstituted 5-aminopyrimidines from vinyl azides and urea or thiourea was developed. This reaction proceeds under microwave irradiation conditions in the presence of water as a solvent. The r
Externí odkaz:
https://doaj.org/article/b806af950d774c5782daefa67fe28cd5
Publikováno v:
Journal of Saudi Chemical Society, Vol 19, Iss 1, Pp 108-111 (2015)
Simultaneous analyses of oxyhalides(BrO3-,ClO3-) and inorganic anions(Cl-,Br-,NO3-andSO42-) have been achieved on metrosep anion dual1 Metrohm as polymer column (150 × 3 mm D.I.) with ortho-phtalic acid as a visualization agent and as ion developer
Externí odkaz:
https://doaj.org/article/52a74799362a44dba3a36f7492360909
Publikováno v:
Journal of Saudi Chemical Society, Vol 20, Iss S1, Pp S53-S59 (2016)
Adsorptive removal of a cationic dye – Rhodamine B – from aqueous solutions was achieved by the use of Animal Bone Meal as a new low cost adsorbent. Adsorption of Rhodamine B was occurred by studying the effects of contact time, adsorbent amount,
Externí odkaz:
https://doaj.org/article/e075191de5a240f29271280baa3c387d
Autor:
MOHAMED MAMOUMI, HANANE FIKRI, RACHID SLIMANI, HAMID AMAROUCHE, MOULAY MUSTAPHA ENNAJI, MOHAMED ZAHOUILY, SAÏD LAZAR
Publikováno v:
Scientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry, Vol 13, Iss 2, Pp 223-230 (2012)
The food safety is necessary of development of agro-food industries. We opted for the introduction of a concept to ensure a sanitary control of products-wares, including the pastry. We chose for our project three parameters as: water activity (aw), p
Externí odkaz:
https://doaj.org/article/be1c2afa96504f659019b7425c640242
Publikováno v:
ARKIVOC, Vol 2010, Iss 10, Pp 116-131 (2010)
Externí odkaz:
https://doaj.org/article/7ccabbbdb5bf428c8de636447f63409e
Publikováno v:
Acta Crystallographica Section E, Vol 67, Iss 8, Pp o2003-o2003 (2011)
In the two molecules of the asymmetric unit of the title compound, C12H11N3O4, the seven-membered diazepine ring adopts a boat conformation (with the two phenylene C atoms representing the stern and the methine C atom the prow). The five-membered pyr
Externí odkaz:
https://doaj.org/article/07d7a77af4924404aa7f9050aae008c5
Publikováno v:
Acta Crystallographica Section E, Vol 67, Iss 4, Pp o945-o946 (2011)
In the title compound, C25H23N3O3, the seven-membered diazepine ring adopts a boat conformation with the hydroxy-substituted C atom at the prow and fused-ring C atoms at the stern. The crystal packing features C—H...O, C—H...π and N—H ...π in
Externí odkaz:
https://doaj.org/article/65f315cba4a741a8ad61817ff106c1d9
Publikováno v:
Acta Crystallographica Section E, Vol 66, Iss 8, Pp o1922-o1922 (2010)
The asymmetric unit of the title compound, C16H14N2O, contains three independent molecules. The dihedral angles between the quinoxaline and phenyl planes in the three molecules are 82.58 (8), 85.66 (9) and 85.36 (9)°. The crystal packing is stabiliz
Externí odkaz:
https://doaj.org/article/f672e110987e4cc8b7f334d55057d3ac
Publikováno v:
Acta Crystallographica Section E, Vol 66, Iss 8, Pp o1966-o1966 (2010)
In the title compound, C15H15N3, the 1H-pyrazolo[3,4-b]pyridine system and the phenyl ring are each individually planar, with r.m.s. deviations of 0.017 (2) and 0.011 (2) Å, respectively; the dihedral angle between the two aromatic systems is 9.33 (
Externí odkaz:
https://doaj.org/article/bdb41a65428b4cbcb230680f9bf52fe0
Publikováno v:
Acta Crystallographica Section E, Vol 66, Iss 7, Pp o1767-o1767 (2010)
In the molecule of the title compound, C12H12N2O, the quinoxaline ring is planar with an r.m.s. deviation of 0.007 (15) Å. The dihedral angle between the quinoxaline and propenyl planes is 82.1 (2)°. The crystal packing is stabilized by offset π
Externí odkaz:
https://doaj.org/article/7ce1bcdb91c941208d4aebca73717cae