[PDF] Top 20 (E,E) 1,5 Di 2 thienylpenta 1,4 dien 3 one
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(E,E) 1,5 Di 2 thienylpenta 1,4 dien 3 one
... Chalcones with the general formula Ar—CH═CH—CO—Ar are an important class of compounds, with the common structural entity being the central –CH═CH—C(═O)- group, in the H atoms can be substituted. The –C═C– double bond can ... See full document
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(1E,4E) 1 (3 Nitrophenyl) 5 phenylpenta 1,4 dien 3 one
... The crystal structures of some bis-chalcones viz., 2,6-bis(4-methoxybenzylidene)cyclohexanone (Butcher et al., 2006a), 1,5-bis(4-chlorophenyl)penta-1,4-dien-3-one (Butcher et al., ... See full document
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5 Phenyl 1 (2 thienyl)penta 2,4 dien 1 one
... ,-Unsaturated ketones have been used as starting materials for the synthesis of various chemicals, including plastics, resins, pesticides, dyes and pharmaceuticals (Opdyke, 1973). The synthesis and biological evaluation ... See full document
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Crystal structure of (2E,4E) 5 [bis(2 hydroxyethyl)amino] 1 (4 chlorophenyl) 5 phenylpenta 2,4 dien 1 one
... characterized 1-aryl-5-phenylpent-2,4-dien-1-ones (Kashino & Haisa, 1980; Fischer et ...of 1-aryl-5-phenylpent-2,4-dien-1-ones with the s-trans conformation of ... See full document
9
4 Tosyl 1 oxa 4 azaspiro[4 5]deca 6,9 dien 8 one
... (Fig. 1) the C1–C6 and C9–C14 six- membered rings are almost parallel to each other(dihedral angle ...(Fig. 2) is enforced by intermolecular C—H···O hydrogen bonds (Table ... See full document
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(2E) 3 (4 Bromophenyl) 1 (4,4′′ difluoro 5′ methoxy 1,1′:3′,1′′ terphenyl 4′ yl)prop 2 en 1 one
... is E-configured. In the crystal, C—H O and C—H F contacts connect molecules into planes perpendicular to the c axis. The shortest centroid–centroid distance between two aromatic systems is 3.6745 (12) A ˚ between ... See full document
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4 Butoxy 3 (2,4 dichlorophenyl) 1 oxaspiro[4 5]dec 3 en 2 one
... 3-(2,4-Dichlorophenyl)-2,4-dioxo-1-oxaspiro[4.5]decane 3.13 g (10.0 mmol), was suspended in a solution of sodium carbonate 0.54 g (5.1 mmol) in 20 ml of water in a flask equipped with stirrer, water ... See full document
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Anti-mycobacterial activity of Piper longum L. fruit extracts against multi drug resistant Mycobacterium Spp
... [5-(1, 3-benzodioxol-5-yl)-1-piperidin-1- ylpenta-2,4-dien-1-one], a well known alkaloid from this ... See full document
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Crystal structure of (Z) 3 benzyloxy 6 [(2 hydroxy 5 methylanilino)methylidene]cyclohexa 2,4 dien 1 one
... tion about the C C bond is Z. The N—H group and carbonyl O atom form an intramolecular N—H O hydrogen bond with an S(6) ring motif. The benzyloxy ring and the 2-hydroxy- 5-methylphenyl ring are inclined to ... See full document
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(E,Z) 1 (4 Chlorophenyl) 5 phenyl 5 (phenylsulfanyl)penta 2,4 dien 1 one
... All bond lengths have characteristic values (Allen et al., 1987), although the length of the C3—C4 bond (1.429 (3) Å) indicates some electron delocalization along polyene C═C—C═C chain. The S—C distances of 1.769 ... See full document
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5 (2 Furyl) 3 hydroxy 1 phenylpenta 2,4 dien 1 one
... accordance with the formation of the longest possible conju- gated chain within the molecule. The O2ÐH distance is 1.00 (2) AÊ and the O1ÐH distance is 1.54 (2) AÊ. The enol character of O2 is also ... See full document
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(2Z,4E) 1 (5 Fluoro 2 hydroxyphenyl) 5 (4 fluorophenyl) 3 hydroxypenta 2,4 dien 1 one
... Dibenzoylmethane (1,3-Diphenyl-propane-1,3-dione, DBM) and chalcones have been found to exhibit a variety of biological activities, such as anti-tumor, anti-inflammatory, antibacterial, anti-parasitic, anti-oxidation and ... See full document
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3 (4 Bromophenyl) 1 (4 nitrophenyl)prop 2 en 1 one
... arranged into infinite chains through short Br1A O2B(1 + x, 1 + y, z) [3.0417 (14) A ˚ ] interactions and also weak short Br1A O3B(x, 1 + y, z) [3.3741 (13) A ˚ ] interactions. These chains are ... See full document
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1 (4 Chlorophenyl) 3 (4 methoxyphenyl)prop 2 en 1 one
... The title compound, (I) (Fig. 1), was prepared as part of our ongoing studies (Indira et al., 2002; Harrison et al., 2005, 2006) of the non-linear optical (NLO) properties of chalcone derivatives (Uchida et al., ... See full document
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3 (4 Bromophenyl) 1 (4 chlorophenyl)prop 2 en 1 one
... of 4-bromobenzaldehyde (0.01 mol) with 4-chloroacetophenone ...for 4 h, the contents of the flask were poured into ice- cold water (250 ml) and left to stand for 24 ... See full document
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3 (4 Methoxyphenyl) 1 (4 nitrophenyl)prop 2 en 1 one
... A molecular view of (I) is shown in Fig. 1. Bond lengths and angles have normal values (Allen et al., 1987) and are comparable to those in related structures (Sathiya Moorthi, Chinnakali, Nanjundan, Santhi et al., ... See full document
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3 (3 Bromophenyl) 1 (4 bromophenyl)prop 2 en 1 one
... C6 0.022 (2) 0.027 (2) 0.022 (2) −0.0021 (17) 0.0044 (16) −0.0021 (16) C7 0.023 (2) 0.026 (2) 0.025 (2) −0.0016 (17) 0.0022 (17) −0.0024 (17) C8 0.027 (2) 0.028 (2) ... See full document
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3 (3 Hydroxyphenyl) 1 (4 nitrophenyl)prop 2 en 1 one
... with hydrochloric acid (5%). A yellow solid was obtained on addition of ethanol. The solid was dissolved in acetone (12 ml) and stirred for about 10 min to give a clear solution. After allowing the solution to ... See full document
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1 (4 Fluorophenyl) 3 (4 methoxyphenyl)prop 2 en 1 one
... Data collection: COLLECT (Nonius, 1998); cell refinement: SCALEPACK (Otwinowski & Minor, 1997); data reduction: SCALEPACK, DENZO (Otwinowski & Minor, 1997), and SORTAV (Blessing, 1995); program(s) used to solve ... See full document
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1 (4 Hydroxyphenyl) 3 (4 methoxyphenyl)prop 2 en 1 one
... C1 0.0333 (6) 0.0489 (7) 0.0522 (7) −0.0028 (5) −0.0011 (5) 0.0034 (5) C2 0.0319 (6) 0.0539 (8) 0.0604 (8) 0.0037 (5) −0.0028 (5) 0.0047 (6) C3 0.0420 (6) 0.0411 (6) 0.0440 (6) 0.0049 ... See full document
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