[PDF] Top 20 1H Benzimidazole 1 carbohydrazonamide
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1H Benzimidazole 1 carbohydrazonamide
... 1H-Benzimidazole-1-carbohydrazonamide was prepared according to the known procedure (Pan’kov et al., 2001a). A portion of hydrazine hydrate (0.2 ml, 4.1 mmol) was added to a solution of ... See full document
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Polymorph β of 1H benzimidazole
... It has a melting point of 431 K and a crystal density of 1.27 Mg m 3 . At room temperature, the crystals transform into the well known orthorhombic form, with a melting point of 445 K. In both polymorphs, ... See full document
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1 (2,3,4,5,6 Pentamethylbenzyl) 2 (pyridin 2 yl) 1H benzimidazole
... For the use of 2-(2-pyridyl)benzimidazole in coordination chemistry, see: Sahin et al. (2010); Harkins et al. (1956); Chiswell et al. (1964); De Castro et al. (1991); Maekawa et al. (1994); Khalil et al. (2001); ... See full document
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1,2 Diphenyl 1H benzimidazole
... The pure N-phenyl-o-phenylenediamine (3.128 g, 17 mmol) in ethanol (10 ml), benzaldehyde (1.72 ml, 17 mmol) and ammonium acetate (3 g) was added about 1 h by maintaining the temperature at 353 K. The reaction ... See full document
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2 (Methylsulfanyl) 1H benzimidazole
... 2-mercaptobenzimidazole (Form et al., 1976); this indicates a failure to form the delocalized aromatic system which might be expected for this molecule. The C3—S1 and C8—S1 bond lengths [1.7374 (16) and 1.783 (2) A ˚ ] ... See full document
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1 Methyl 2 methylsulfanyl 6 nitro 1H benzimidazole
... To a solution of 5-nitro-1H-benzimidazole-2-thiol (5.12 mmol) in DMSO (15 ml) was added potassium carbonate (5.2 mmol). After 15 min. at 298 K, methyl iodide (7.68 mmol) was added drop wise. Upon ... See full document
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1 Phenyl 2 [4 (trifluoromethyl)phenyl] 1H benzimidazole
... Data collection: APEX2 Bruker, 2008; cell refinement: APEX2 and SAINT Bruker, 2008; data reduction: SAINT; programs used to solve structure: SHELXS97 Sheldrick, 2008; programs used to re[r] ... See full document
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1 (4 Bromobenzyl) 2 (4 bromophenyl) 1H benzimidazole
... plane of the benzimidazole group and those of the 4-bromobenzyl and 4-chlorophenyl groups are 50.72 (17); 42.09 (16) and 71.29 (16);89.05 (17) respectively. The 4-bromobenzyl and 4-bromophenyl groups make an angle ... See full document
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1 Isopropyl 4 nitro 6 methoxy 1H benzimidazole
... (0 °C) followed by stirring for an additional 5 min at 273 K (0 °C). To this solution was added a solution of 5-methoxy-3- nitrobenzene-1,2-diamine (2, Fig. 3) (2.1609 g, 11.8 mmole) in ACS grade acetone (20 ml) and THF ... See full document
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1 (4 Fluorobenzyl) 2 (pyridin 2 yl) 1H benzimidazole
... For the use of 2-(2-pyridyl)benzimidazole in coordination chemistry, see: Boca et al. (1997); De Castro et al. (1991); Khalil et al. (2001); Maekawa et al. (1994). For deprotonation of the NH group in ... See full document
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1 Benzyl 2 [2 (benzyloxy)phenyl] 1H benzimidazole
... (Tong et al., 2005; Elerman & Kabak, 1997), and metal complexes with Be II , Co II and Co III (Tong et al., 2005; Crane et al., 1999). However, the benzimidazole and phenolate moieties are non-coplanar owing ... See full document
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2 (2,4 Dichlorophenyl) 1H benzimidazole
... (Fig. 1), the C—C and C—N bond lengths are similar to those found in 2-(2-ethoxyphenyl)- 1-ethyl-1H-benzimidazole (Tong & Li, 2004) and its parent compound ...The benzimidazole ... See full document
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Ethyl 2 (1,3 benzodioxol 5 yl) 1 [3 (1H imidazol 1 yl)propyl] 1H benzimidazole 5 carboxylate
... - 1/2, y, -z + 3/2), C15—H15B···O4(-1 + x, y, z) and C23—H23A···N4(2 - x, 2 - y, 1 - z) interactions form the molecules into ribbon stacked along the ...the benzimidazole ring system between ... See full document
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Crystal structure and DFT study of 2 (pyren 1 yl) 1H benzimidazole
... The DFT study of (I) shows that the HOMO and LUMO are localized in the plane extending from the whole pyrene ring to the benzimidazole ring. The electron distribution of the HOMO-1, HOMO, LUMO and the ... See full document
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2 (3,4 Difluorophenyl) 1H benzimidazole
... The molecular structure of the title compound is shown in Fig. 1. The dihedral angle between the benzimidazole ring system and difluoro-substituted benzene ring is 30.0 (1)°. This value is slightly ... See full document
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2 (4 Fluorophenyl) 1H benzimidazole
... In the crystal structure of (I), the molecules are linked by intermolecular N1—H1A N2 i hydrogen bonds (symmetry code as in Table 1) to form infinite chains parallel to the b axis (Fig. 2). There are also weak – ... See full document
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2 (4 Bromophenyl) 1H benzimidazole
... In the crystal structure of (I), the molecules are linked by N—H N intermolecular hydrogen bonds (Table 1) to form infinite chains parallel to the b axis (Fig. 2). There are also weak C—H interactions, the closest ... See full document
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2 (3,4,5 Trimethoxyphenyl) 1H benzimidazole
... In the crystal of (I), an N—H···N hydrogen bond (Table 1) links the molecules into chains propagating in [010] (Fig. 2). There are no aromatic π-π stacking interactions in (I) as the closest centroid-centroid ... See full document
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2 (3 Methoxysalicylideneamino) 1H benzimidazole
... The title compound was prepared by re¯uxing a mixture of a solution containing o-vanillin (0.5 g, 3.2 mmol) in ethanol (20 ml) and a solution containing 2-aminobenzimidazole (0.43 g, 3.2 mmol) in ethanol (20 ml). The ... See full document
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2 (2 Nitrophenyl) 1H benzimidazole
... (20 ml). After the addition was complete, the reaction mixture was stirred at 273 K for 1 h and at room temperature for 3 h. The volatiles were removed in vacuo to give an off-white solid. The solid was refluxed ... See full document
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