121045-40-7

Upstream product

• 121045-46-3 2-(isopropylthio)-1-phenylethan-1-ol 
• 121045-17-8 1-acetoxy-1-phenyl-2-isopropylthioethane 
• 74849-11-9 2-bromo-4-formylphenyl acetate 
• 536-74-3 phenylacetylene 
• 123-08-0 4-hydroxy-benzaldehyde 
• 932-87-6 1-Bromo-2-phenylacetylene 
• 60032-63-5 4-hydroxy-3-iodo-benzaldehyde 
• 767-00-0 4-cyanophenol 
• 2296-23-3 2-iodo-4-cyanophenol 
• 2973-78-6 3-bromo-4-hydroxybenzylaldehyde 
• 532-27-4 1-chloroacetophenone 
• 66502-11-2 2-isopropylsulfanyl-1-phenyl-ethanone 

Relevant academic research and scientific papers

Total Synthesis of the Natural Chalcone Lophirone E, Synthetic Studies toward Benzofuran and Indole-Based Analogues, and Investigation of Anti-Leishmanial Activity

The potential of natural and synthetic chalcones as therapeutic leads against different pathological conditions has been investigated for several years, and this class of compounds emerged as a privileged chemotype due to its interesting anti-inflammatory

A novel benzofuran derivatives and uses thereof

The present application relates to a novel benzofuran derivative and uses thereof. More specifically, the present invention provides: a compound represented by chemical formula I, a solvate, a stereoisomer, or a pharmaceutically acceptable salt thereof; a

One-pot synthesis of 2-substituted benzo[b]furans via Pd-tetraphosphine catalyzed coupling of 2-halophenols with alkynes

A catalyst composed of [Pd(η3-C3H 5)Cl]2 and N,N,N',N'-tetra(diphenylphosphinomethyl) pyridine-2,6-diamine (L) was found to be effective for one-pot synthesis of 2-substituted benzo[b]furans from 2-halophenols and alkynes. For 2-bromo-3-hydroxypyridine, the catalyst loading could be as low as 1 ppm and the turnover number (TON) was up to 870000. the Partner Organisations 2014.

Sequential and one-pot reactions of phenols with bromoalkynes for the synthesis of (Z)-2-bromovinyl phenyl ethers and benzo[ b ]furans

Benzo[b]furans were prepared in one pot based on the addition/palladium- catalyzed C-H bond functionalization of phenols with bromoalkynes. The addition reactions of phenols to bromoalkynes generated (Z)-2-bromovinyl phenyl ethers in high yields with excellent regio- and stereoselectivity. The obtained (Z)-2-bromovinyl phenyl ethers subsequently proceeded by intramolecular cyclization to afford 2-substituted benzo[b]furans in good yields through palladium-catalyzed direct C-H bond functionalizations. It is important to note that the transformation of phenols with bromoalkynes into benzo[b]furans could be carried out in one pot with a simple and efficient tandem procedure.

Efficient synthesis of 5-nitro-benzo[b]furans via 2-bromo-4-nitro-phenyl acetates

Acetylation/Sonogashira cross-coupling reaction/cyclization has been carried out in one-pot using a Na2PdCl4/2-(di-tert-butylphosphino)-N-phenylindole/CuI system in TMEDA to give 5-nitro-2-substituted benzo[b]furans in excellent yields. We also describe the extension of this method to 4-EWG-2-bromo-phenols obtaining 2,5-disubstituted-benzo[b]furans in good yields.

SELECTIVE PREPARATION AND CYCLIZATION OF 2-(2-HYDROXYPHENYL)-2-(ISOPROPYLTHIO)ETHANOLS. NEW SYNTHESIS OF 1-BENZOFURANS

Reaction of phenols with 2-(isopropylthio)ethyl acetate activated by sulphuryl chloride afforded 2-phenols regioselectively, via sigmatropic rearrangement of phenoxysulphonium ylides.The ortho-alkylated phenols thus obtained have been cyclized with conc. hydrochloric acid in 2-methoxyethanol to 1-benzofurans. 2-Methyl- and 2-phenyl-1-benzofurans have been prepared similarly.