1- b ]furan
![Synthesis of urethanes and substituted ureas encompassing naphtho[2 1 b]furan and evaluation their analgesic activity](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==)
Synthesis of urethanes and substituted ureas encompassing naphtho[2 1 b]furan and evaluation their analgesic activity
... naphtho[2,1-b]furan-2-carboxylate 1 was synthesized from 2-hydroxy-1-naphthaldehyde by reacting it with ethyl chloroacetate in presence of anhydrous potassium carbonate and dimethyl ...ester ...
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Crystal structure of 7 bromo 2 (3 fluorophenyl) 1 (methylsulfinyl)naphtho[2,1 b]furan
... The starting material 7-bromo-2-(3-fluorophenyl)-1-(methylsulfanyl)naphtho[2,1-b]furan was prepared by literature method (Choi et al., 1999). 3-Chloroperoxybenzoic acid (77%, 224 mg, 1.0 mmol) was ...
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Ethyl 5 bromonaphtho[2,1 b]furan 2 carboxylate
... To a solution of ethyl naphtho[2,1- b ]furan- 2-carboxylate (0.1 mol) in glacial acetic acid (20 ml) was added a solution of bromine (0.1 mol) in acetic acid (20 ml) with stirring during 1 h at ...
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2 Methyl 1 (phenylsulfonyl)naphtho[2,1 b]furan
... As a part of our ongoing studies on the synthesis and structure of 2-methylnaphtho[2,1-b]furan derivatives, the crystal structures of 2-methyl-1-(methylsulfinyl)naphtho[2,1-b]furan ...
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7 Bromo 2 (4 methylphenyl) 1 (methylsulfinyl)naphtho[2,1 b]furan
... 3-Chloroperoxybenzoic acid (77%, 202 mg, 0.9 mmol) was added in small portions to a stirred solution of 7-bromo-2-(4- methylphenyl)-1-(methylsulfanyl)naphtho[2,1-b]furan (306 mg, 0.8 mmol) in ...
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2 [1 (Methylsulfanyl)naphtho[2,1 b]furan 2 yl]acetic acid
... Ethyl 2-{1-(methylsulfanyl)naphtho[2,1-b]furan-2-yl}acetate (600 mg, 2.0 mmol) was added to a solution of potassium hydroxide (561 mg, 10.0 mmol) in water (20 ml) and methanol (20 ml). The mixture ...
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7 Bromo 1 (3 fluorophenylsulfonyl) 2 methylnaphtho[2,1 b]furan
... bromo-1-(3-fluorophenylsulfanyl)-2-methylnaphtho[2,1- b ]furan (271 mg, 0.7 mmol) in dichloromethane (40 mL) at 273 K. After being stirred at room temperature for 10 h, the mixture was washed with ...
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Synthesis and Antioxidant Activity of Naphtho [2,1-B] Furan Derivatives for the Suppression of Pimples
... A cooled nitrating mixture of concentrated nitric. acid and concentrated sulphuric acid in the ratio 1:2(6.5ml: 13ml) was added very slowly to a cooled solution of 2-acetylnaphtho [2,1-b] furan ...
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7 Bromo 2 methyl 1 tosylnaphtho[2,1 b]furan
... 3-Chloroperoxybenzoic acid (77%, 377 mg, 1.68 mmol) was added in small portions to a stirred solution of 7-bromo-2- methyl-1-(4-tolylsulfanyl)naphtho[2,1-b]furan (306 mg, 0.8 mmol) in dichloromethane ...
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SYNTHESIS OF N'-(CHLOROACETYL)NAPHTHO[2,1-B]FURAN-2- CARBOHYDRAZIDE AND N'-(ARYLAMINOACETYL)NAPHTHO [2,1-B]FURAN-2-CARBOHYDRAZIDE DERIVATIVES AND THEIR ANTIMICROBIAL ACTIVITIES
... carbohydrazide 4 (0.3g) was dissolved in DMF (5 ml). To this, 4-methoxy aniline and KI crystals were added. The reaction mixture was stirred at room temperature for 8 hour then poured into ice cold water to get N'-[(4- ...
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2 Methyl 1 (phenylsulfinyl)naphtho[2,1 b]furan
... naphtho[2,1- b]furan analogues (Choi, Seo et ...(Fig. 1), was obtained by the oxidation of 2-methyl-1-(phenylsulfan- yl)naphtho[2,1-b]furan with 3-chloroperbenzoic ...
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Methyl 2 (5 bromo 2 methylnaphtho[2,1 b]furan 1 yl)acetate
... of (I) showed five aromatic proton signals, two of which experienced two large ortho couplings and one a singlet (δ 7.81). This coupling pattern indicated that an aromatic electrophilic substitution had occurred on the ...
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2 (2 Methylnaphtho[2,1 b]furan 1 yl)acetic acid
... Data collection: SMART Bruker, 2000; cell refinement: SAINT Bruker, 2000; data reduction: SAINT and SHELXTL Sheldrick, 2008; programs used to solve structure: SIR92 Altomare et al., 1994[r] ...
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Synthesis and biological study of some new thiazolidinone derivatives containing naphthofuran moiety
... 2-hydroxy 1-naphthaldehyde and chloroacetone in acetone gave 2- acetylnaphtho [2,1-b] ...[2, 1-b] furan with substituted aromatic aldehyde and aqueous solution of potassium hydroxide in ...
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Transcriptional analysis of Amorphotheca resinae ZN1 on biological degradation of furfural and 5-hydroxymethylfurfural derived from lignocellulose pretreatment
... containing 1 g/L furfural or HMF in 100 mL shake ...and 1 g/L of furfural or ...time, 1 mL of the supernatants were collected and stored at 4 °C until used for glucose and inhibitors concentration ...
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2 Acetylbenzo[b]furan
... A convenient method of preparing 2-acetylbenzofuran, (I), from 2-hydroxybenzaldehyde and chloroacetone in the presence of KOH has been reported (Elliott, 1951). We have obtained (I) using a phase-transfer catalytic ...
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2,3 Dihydro 2 hydroxybenzo[b]furan 3 one
... Because of the contradictory nature of these reports concerning the structure of this solid substance with melting point of 381 K, and because of the possibility that this substance might be the product of our hydrolysis ...
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Synthesis and biological activities of 3-substituted-2-thioxoimidazolidin-4-one and 2-thioxotetrahydropyrimidin-4(1H)-one derivatives
... A mixture of compounds 2 or 6 (0.01 mol), benzyl alcohol (0.01 mol) and pyridine (1 ml) was heated under reflux for 2 hrs, cooled then acidified with dilute hydrochloric acid. The resulting solid was filtered, ...
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Synthesis and antimicrobial activity of novel benzo[b]furan derivatives
... benzo[b] furan derivatives 6a – ...Table 1, it was observed that among all the compounds tested, sulphonyl derivatives 6b, 6d, 6e, 6f, 6g and 6h showed good to excellent activity, while the carbonyl ...
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Physicochemical and pharmacological study of some newly synthesized furan imine derivatives
... natural furan containing molecules continue to be uncovered at a rapid ...potent furan piperazine sodium channel blockers for treatment of neuropathic pain ...of furan-based molecules as potential ...
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