Naphthofurans
WitrynaThe fact that the naphthofurans lack LSD-like activity suggests that they do not bind to the serotonin receptor in a way such that the tricyclic naphthofuran nucleus is bioisosteric with, and directly superimposable upon, the A, B, and C rings of LSD. This also implies, therefore, that the hallucinogenic phenethylamines cannot be directly ... WitrynaThe functionalization of the vinylidene-naphthofurans with a reactive siloxane group was essential to avoid their precipitation after curing. The best results were obtain using a …
Naphthofurans
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Witryna5 maj 2010 · A major route for the synthesis of naphthofurans is the intramolecular formation of a furan ring starting with properly substituted α-naphthyloxycarbonyl compounds and their corresponding acetals [14–16].Polysubstituted naphtho[1,2-b]furans were obtained by cyclization of asymmetrically substituted 1-naphthyloxy ketones by … Witryna19 mar 2015 · Various substituted benzoindoles and naphthofurans are obtained in good to excellent yields. Moreover, the ability to recycle the carbonaceous material makes this method quite cost-effective and environmentally benign compared to traditional acid-catalyzed methods. Theoretical studies indicated that the reaction …
Witryna17 sty 2005 · The naphthofurans 1b and 2b were obtained in overall yields of 82 and 97% yields, respectively, from the two-step reactions of 6 and 7 with bromoacetonitrile involving isolated 8b and 9b intermediates. The one-step reaction of 6 to produce 1b in refluxing acetone solution without isolating the intermediate 8b gave much low yield, … Witryna30 wrz 2015 · Naphthofurans have been synthesized by tBuOK-catalyzed intramolecular anionic cycloaddition of unsymmetrical bis-propargyl ethers. The …
Witryna10 lut 2015 · Dibenzofuran (DBF), its alkylated homologues, and benzo[b]naphthofurans (BNFs) are common oxygen-heterocyclic aromatic compounds in crude oils and … Witryna30 wrz 2015 · The tBuOK-catalyzed intramolecular anionic cycloaddition of unsymmetrical bis-propargyl ethers has been applied to the synthesis of naphthofurans.A systematic study of the cyclization system revealed that the amount of base and solvent played an essential role in this reaction. The results showed that the …
WitrynaNaphthofurans have been synthesized by tBuOK-catalyzed intramolecular anionic cycloaddition of unsymmetrical bis-propargyl ethers. The cyclization proceeded …
Witryna30 wrz 2015 · Naphthofurans have been synthesized by tBuOK-catalyzed intramolecular anionic cycloaddition of unsymmetrical bis-propargyl ethers. The cyclization proceeded cleanly and smoothly under mild conditions with a catalytic amount of tBuOK as base in THF at room temperature in 15 min. The method tolerates … joe thornton teams he played forWitrynaPages in category "Naphthofurans". The following 4 pages are in this category, out of 4 total. This list may not reflect recent changes ( learn more ). joe thorsteinson new brunswickWitryna4-dimethylaminopyridine-catalyzed cascade reaction for efficient synthesis of naphthofurans. Chemical Research in Chinese Universities 2016, 32 (1) , 62-67. … integrity in your jobWitryna30 wrz 2015 · The tBuOK-catalyzed intramolecular anionic cycloaddition of unsymmetrical bis-propargyl ethers has been applied to the synthesis of … joe thourotWitrynaS. Abrecht is an academic researcher. The author has an hindex of 1, co-authored 1 publication(s) receiving 4 citation(s). joe thorsonWitrynanBu4NPF6 mediated highly regioselective synthesis of functionally embellished naphthofurans has been achieved from easily available naphthols and propargyl … integrity in your own wordsWitryna20 mar 2024 · An efficient cascade Rh(II) and Yb(III) catalyzed transannulation of N-sulfonyl-1,2,3-triazoles with β-naphthols has been accomplished for the synthesis of … joe threadgill