4H-pyran-4-one
3,5 Bis(4 methylbenzoyl) 2,6 bis(4 methylphenyl) 4H pyran 4 one
... tetrasubstituted-4H-pyran-4- one with 2,6-bis(p-tolyl) and 3,5-bis(p-toluyl) substituents ...The pyran ring O1/C1±C5 is planar within ...the pyran plane [both dihedral angles are ...
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3 Hydroxy 6 methyl 2 [4 (3 trifluoromethylphenyl)piperazin 1 ylmethyl] 4H pyran 4 one
... maltol) and formaldehyde. 2-Chloromethyl-5-hydroxy-4H-pyran-4- one (cholorokojic acid) was synthesized as described by Ellis et al. (1996) (yield 76%; m.p. 439±440 K). For the synthesis of ...
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3,5 Dihydroxy 2 methyl 4H pyran 4 one
... The title compound, 3,5-dihydroxy-2-methyl-pyran-4-one, (I) was identified as a decomposition product in the stored solution of orange juice (Shinoda, et al., 2004). We report here the crystal ...
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3,5 Dihydroxy 2 hydroxymethyl 4H pyran 4 one
... People’s Republic of China, and identified by Professor Bing-Yang Ding of Wenzhou Normal University. The air-dried and powdered plant materials (4 kg) were extracted with 95% EtOH. The EtOH extracts were ...
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5 Hydroxy 2 methyl 4H pyran 4 one
... A variety of compounds with a 4(1H)-pyridinone structure have been synthesized and their biological activities studied extensively (Aytemir et al., 1999; Erol & Yulug, 1999). Allomaltol, the title compound ...
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Molecular docking studies of the chemical constituents of hippo 08 with cyp2e1 and cyp3a4
... (E,E)-, 4H-pyran-4-one,2,2- dihydro-3,5-dihydroxy-6-methyl, Benzene aceticacid,2,5- dihydroxy-, Phenol,2-methoxy-5-(1-propenyl)-,(E)-, and 3 Hexadecanoic acid, ethyl ester which are present in ...
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Ethyl 4 (3 hydroxy 6 methyl 4 oxo 4H pyran 2 ylmethyl)piperazine 1 carboxylate
... 2-methyl-5-hydroxy-4H- pyran-4-one (allomaltol) and a piperazine ring, which is connected on one N side to the methylene bridge at the 2-position of the pyranone ring and on the other N ...
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Insilico Molecular Docking of Some Isolated Selected Compounds of Phoenix Sylvestris (L.) for Analgesic Activity
... 3-Dihydro-3,5-dihydroxy-6-methyl-4H-pyran-4- one, 4-methylcatechol, Diethyl Phthalate and 2,4-Di-tert-butyl phenol with COX-1 (PDB id: 2OYE) and COX-2 (PDB id: ...
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2,6 Dimethyl 4H 1 benzopyran 4 one
... 4±Benzopyrones (also known as chromen-4-ones or 4H-1- benzopyran-4-ones) have attracted considerable attention because of their presence in numerous natural products and synthetic drugs (e.g. ...
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4 (4 Fluorophenyl) 6 methylamino 5 nitro 2 phenyl 4H pyran 3 carbonitrile
... infinite one dimensional chain along [100], through intermolecular N2—H2···N3 and C6—H6A···N3 hydrogen bonds, generating graph set motifs C(8) and C(9) respectively ...
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5,7 Bis(benzyloxy) 4H benzopyran 4 one
... 5,7-Dihydroxychromone is a flavanoid decomposition product that has been found as a constituent in certain plant extracts (Pendse et al., 1973) and is a germination and growth inhibitor (Spencer & Tjarks, 1985). In ...
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2 Amino 3 cyano 4 (2,4 dichlorophenyl) 8 methylpyrano[3,2 c]pyran 5(4H) one ethanol solvate
... Cl1 0.0425 (4) 0.0398 (4) 0.0317 (4) −0.0020 (3) −0.0049 (3) −0.0188 (3) Cl2 0.1105 (9) 0.0423 (5) 0.0759 (7) 0.0369 (5) −0.0395 (6) −0.0212 (5) O1 0.0236 (9) 0.0298 (9) 0.0420 (10) −0.0032 (7) ...
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Synthesis of Spiro[4H pyran 3,3 oxindole] by 1,3 Dibromo 5,5 dimethyl hydantoin(DBDMH) As a Catalyst Using Eco Friendly Medias
... than one century, the formation of carbon-carbon bonding in watery medium was restricted to electrochemical process and Aldoli condensation ...[ 4-6 ] ...process, one-pot reactions of two or more ...
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KF Al2O3 as an Efficient and Recyclable Basic Catalyst for the Synthesis of 4H Pyran 3 carboxylates and 5 Acetyl 4H pyrans
... general, 4H-pyrans are prepared by the one-pot condensation of an aldehyde, malononitrile and ethyl acetoacetate in presence of a ...of 4H-pyrans [9-15] involve the use of hazardous solvents, long ...
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Mnso4.4H2O: A Novel And Inexpensive Catalyst For The One-Pot Multicomponent Synthesis Of 4H-Benzo[B]Pyran Derivatives
... Over the years, multicomponent reactions (MCRs) have been proven to be a very elegant and rapid way to synthesize structurally diverse bioactive heterocyclic compounds in a single synthetic operation from simple building ...
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Ethyl 6 amino 5 cyano 2 methyl 4 phenyl 4H pyran 3 carboxylate
... 2-Aminopyran derivatives are often used in cosmetics and pigments, and utilized as potentially biodegradable agro- chemicals (Morinaka & Takahashi, 1977; Witte et al., 1986; Hafez et al., 1987). There are various ...
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Design, synthesis, and biological evaluation of novel neo-tanshinlactone analogues as potent and selective anti-breast cancer agents
... In our research, we developed five different but related classes of anti-breast cancer agents: neo-tanshinlactone, 2-(furan-2-yl) naphthalen-1-ol (FNO), 6-phenyl-4H-furo[3,2- c]pyran-4-one ...
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Crystal structure of 2 amino 3 cyano 4 (4 methoxyphenyl) 4H 1 benzothieno[3,2 b]pyran
... In a 100 mL flask equipped with a condenser was dissolved 4 mmol of (Z)-2-(4-methoxybenzylidene)-1-benzo[b]thio- phen-3(2H)-one and 5 mmol of malononitrile in 30 mL of ethanol. Then, 1 mL of ...
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2 (4 Hydroxyphenyl) 3 methoxy 4H chromen 4 one
... For general features of flavones and flavonols (derivatives of 3-hydroxy-2-phenyl-4H-chromen-4-one), see: Demchenko (2009); Ma et al. (2012). For related structures, see: Wera et al. (2011a,b). For ...
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Methyl 6 amino 5 cyano 2 methoxycarbonylmethyl 4 phenyl 4H pyran 3 carboxylate
... The molecular structure of (I) is shown in Fig. 1. The O1Ð C1 and O1ÐC5 bond lengths are 1.387 (2) and 1.363 (2) AÊ, respectively (Table 1). The mean C O bond length of 1.198 (2) AÊ is typical of a double bond, and is ...
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