نتایج جستجو برای: 2 amino 3

تعداد نتایج: 3476941  

Journal: :Acta Crystallographica Section E Structure Reports Online 2011

Journal: :Acta Crystallographica Section E Structure Reports Online 2011

A series of 2-amino-4-(nitroalkyl)-4H-chromene-3-carbonitriles were synthesized by an efficient multicomponent reaction in aqueous media using DBU (1,8-diazabicyclo[5.4.0]undec-7-ene) as a catalyst at room temperature. Mild condition, environment friendly procedure and excellent yields are the main advantages of this procedure. The cytotoxic activity of target compounds were evaluated against t...

Journal: :Acta Crystallographica Section E Structure Reports Online 2011

Journal: :Acta Crystallographica Section E Structure Reports Online 2013

2008
Mohammed H. Al-Douh Shafida A. Hamid Hasnah Osman Reza Kia Hoong-Kun Fun

In the title compound, C(14)H(14)N(2)O(2), the dihedral angle between the two benzene rings is 9.67 (10)°. Two intra-molecular O-H⋯N and N-H⋯N hydrogen bonds involving the hydr-oxy and amino groups generate S(6) and S(5) ring motifs, respectively. In the crystal structure, N-H⋯O hydrogen bonds link neighboring mol-ecules. Mol-ecules are also stacked in a head-to-tail fashion along the c axis th...

2012
Hakkı Yasin Odabaşoğlu Orhan Büyükgüngör Osman Ozan Avinç Mustafa Odabaşoğlu

In the title hydrated salt, C(6)H(9)N(2)O(+)·C(14)H(9)O(3) (-)·H(2)O, the dihedral angle between the benzene rings of the 2-benzoyl-benzoate anion is 82.04 (14)°, while the angles between the aromatic ring of the pyridinium cation and each of the benzene rings of the anion are 4.42 (14) and 82.04 (14)°. In the crystal, mol-ecules are linked by N-H⋯O and O-H⋯O hydrogen bonds, generating a three-...

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