[PDF] Top 20 5,7 Dimethoxy 2 phenyl 4H chromen 4 one
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5,7 Dimethoxy 2 phenyl 4H chromen 4 one
... All H atoms were observed in a difference Fourier map. However, they were placed in idealized positions with C–H = 0.93 and 0.96 Å for aryl and methyl H, respectively. Their isotropic displacement parameters were tied to ... See full document
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CHEMISTRY AND PATHOPHYSIOLOGY OF 2–PHENYL–4H–CHROMEN–4–ONE DERIVATIVES AS HOLISTIC FLORA IN THE FORM OF GLYCOSIDIC AGLYCONE
... One of the author (Ms. Arpita Biswas) did M.Pharm. project on Characterization and pharmacological evaluation of isolated flavonoid from natural source from WBUT: West Bengal University of Technology now Maulana ... See full document
9
SYNTHESIS AND ANTI DIABETIC ACTIVITY OF SOME NEW 2-(SUBSTITUTED PHENYL)-4H-CHROMEN-4-ONE DERIVATIVES
... modified 5-amino-6- hydroxy-2-phenyl-4H-Chromen-4-one V by reacting it with thiourea to yield 2-amino-7- phenyl chromen (5,6-d) imidazol-9 ... See full document
6
2 Phenyl 4H 3,1 benzoxazin 4 one
... C1 0.0438 (9) 0.0438 (8) 0.0439 (10) −0.0068 (7) 0.0027 (7) −0.0010 (7) C2 0.0560 (11) 0.0553 (10) 0.0484 (11) −0.0045 (8) 0.0033 (9) 0.0046 (8) C3 0.0816 (16) 0.0675 (12) 0.0503 (12) −0.0070 (10) ... See full document
6
SYNTHESIS AND ANTIMICROBIAL ACTIVITY OF N {4 [(6 CHLORO 4 OXO 4H CHROMEN 3 YLMETHYLENE) IMINO] PHENYL} 2 (SUBSTITUTED PHENOXY ACETAMIDE) DERIVATIVES
... to iodine vapor. The antibacterial and antifungal screening is carried out at microbiology laboratory of College of Pharmacy IFTM, Moradabad. The different microbial strains were procured from NCL Pune. Synthesis of ... See full document
7
4 (4 Bromophenyl) 2 methylamino 3 nitro 5,6,7,8 tetrahydro 4H chromen 5 one
... C5 0.0327 (15) 0.0365 (16) 0.0231 (14) 0.0076 (13) −0.0023 (11) 0.0015 (12) C4 0.0264 (15) 0.0419 (17) 0.0391 (18) 0.0027 (13) −0.0004 (12) −0.0038 (14) C3 0.0394 (17) 0.0393 (17) 0.0411 (18) 0.0045 (14) 0.0135 (14) ... See full document
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(4S*) 2 Methylamino 3 nitro 4 (4 nitrophenyl) 5,6,7,8 tetrahydro 4H chromen 5 one
... A solution of the requisite aldehyde (0.151 g, 1.0 mmol), cyclic 1,3-dicarbonyl compound (0.112 g, 1.0 mmol), NMSM (0.148 g, 1.0 mmol) and piperidine (0.2 equiv) in EtOH (2 ml) was stirred for 1.5 hrs. After the ... See full document
9
2 Phenyl 4 (3,4,5 trimethoxybenzylidene) 1,3 oxazol 5(4H) one
... The title compound was synthesized from 3,4,5-trimethoxybenzaldehyde and hippuric acid as reported by Song et al. (2001). A mixture of hippuric acid (2.2 mmol), 3,4,5-trimethoxybenzaldehyde (2 mmol), sodium ... See full document
7
2 (4 Hydroxyphenyl) 3 methoxy 4H chromen 4 one
... O1 0.0465 (7) 0.0475 (7) 0.0342 (6) 0.0080 (5) −0.0007 (5) −0.0006 (5) C2 0.0394 (9) 0.0405 (9) 0.0364 (9) −0.0031 (7) 0.0078 (7) −0.0004 (7) C3 0.0477 (10) 0.0457 ... See full document
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rac 4 (4 Chlorophenyl) 2 methylamino 3 nitro 5,6,7,8 tetrahydro 4H chromen 5 one
... C1 0.0421 (12) 0.0421 (12) 0.0334 (11) −0.0032 (10) 0.0014 (9) 0.0005 (9) C2 0.0523 (13) 0.0468 (13) 0.0341 (12) −0.0107 (11) 0.0099 (10) −0.0078 (10) C3 0.0439 (12) 0.0403 (12) 0.0510 (14) −0.0058 (10) 0.0186 (10) ... See full document
10
3-HYDROXY-2-(SUBSTITUTED PHENYL)-4H-CHROMEN-4-ONE DERIVATIVES- SYNTHESIS, SPECTRAL CHARACTERIZATION AND PHARMACOLOGICAL SCREENING
... rings connected by a three carbon bridge. Flavonoids lead to potent antioxidant activity, the most important function of flavonoids to scavenge hydroxyl radicals, superoxide anions and lipid peroxy radicals. Multiple ... See full document
8
4 [(2 Hydroxyphenylamino)phenylmethylene] 5 methyl 2 phenyl 2H pyrazol 3(4H) one
... A view of the molecular structure of the title compound, (I), is shown in Fig. 1. The compound was prepared from the reaction of 1-phenyl-3-methyl-4-benzoyl-5-pyrazolone (PMBP) and o-aminophenol, ... See full document
9
5 Hydroxy 7 methoxy 2 (4 methoxyphenyl) 4H 1 benzopyran 4 one
... O1 0.0397 (6) 0.0506 (7) 0.0330 (5) 0.0022 (5) 0.0113 (4) 0.0064 (5) O2 0.0556 (7) 0.0711 (9) 0.0343 (5) 0.0069 (7) 0.0107 (5) 0.0164 (6) O3 0.0481 ... See full document
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Summer Day/Night Gender Differences in Serum Total Antioxidant Capacity as a Methodological Pitfall in Human Antioxidant Research
... conditions. 4-Hydrazinyl-3-nitrobenzopyran-2-one 4 is synthesized from 4-hydroxybenzopyran-2-one 1 via three steps ...of 4- ... See full document
15
3 (4 Nitrobenzyl) 4H chromen 4 one
... The molecular structure of the title compound is shown in Fig. 1. The dihedral angle between the 10-membered co- planar chromone ring and the nitrated phenyl ring is 86.16 (5)°. In the crystal, the ... See full document
7
5 Hydroxy 3,7 dimethoxy 2 phenyl 4H 1 benzopyran 4 one
... C6B 0.24589 (6) 0.21596 (14) −0.06753 (5) 0.01517 (17) C7B 0.28274 (5) 0.17801 (14) 0.00927 (5) 0.01444 (17) C8B 0.25188 (6) 0.14633 (15) 0.05595 (5) 0.01534 (17) C9B 0.29717 (6) 0.10636 (14) ... See full document
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4 Benzylidene 1 phenyl 2 propylamino 1H imidazol 5(4H) one
... C1 0.0673 (11) 0.0729 (13) 0.0658 (12) −0.0013 (10) 0.0212 (9) −0.0164 (10) C2 0.0681 (12) 0.0872 (16) 0.0853 (16) 0.0046 (11) 0.0244 (11) −0.0331 (13) C3 0.0557 (11) 0.0741 (14) 0.0994 (17) 0.0132 (9) −0.0013 (10) ... See full document
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5,7 Dihydroxy 8 methoxy 2 phenyl 4H chromen 4 one monohydrate
... The title compound, (I), was extracted from Scutellaria rehderiana Diels with acetone (Su et al., 2004; Li & Chen, 2005). Recently, the compound was successfully crystallized from ethyl acetate. The molecule is ... See full document
7
2 Phenyl 5,7 bis(prop 2 en 1 yloxy) 4H chromen 4 one
... 1988). 4H-chromenes are important synthons for some natural products (Liu et ...on 4H-chromene derivatives, the single-crystal X-ray diffraction study on the title compound was carried ... See full document
9
4 (2 Bromophenyl) 2 phenylpyrano[3,2 c]chromen 5(4H) one
... C18 0.0176 (8) 0.0169 (8) 0.0240 (8) −0.0010 (6) 0.0061 (6) −0.0036 (6) C19 0.0170 (8) 0.0175 (8) 0.0223 (8) −0.0001 (6) 0.0030 (6) −0.0033 (6) C20 0.0249 (9) 0.0159 (8) 0.0405 (11) 0.0000 (7) 0.0105 (8) 0.0007 ... See full document
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