89424-84-0

Upstream product

• 6921-27-3 dipropargyl ether 
• 107-19-7 propargyl alcohol 
• 89424-83-9 1,3-dihydroisobenzofuran-5-carbaldehyde 
• 188111-48-0 5-(bromomethyl)-1,3-dihydroisobenzofuran 
• 53957-33-8 2,5-dimethylbenzyl alcohol 
• 1310458-49-1 2,5-bis(bromomethyl)benzyl acetate 
• 22184-23-2 2,5-dimethylbenzyl acetate 

Downstream Products

• 1187196-40-2 5-(3,5-dichlorophenyl)-3-(1,3-dihydro-2-benzofuran-5-yl)-5-(trifluoromethyl)-4,5-dihydroisoxazole 
• 89424-83-9 1,3-dihydroisobenzofuran-5-carbaldehyde 
• 188111-48-0 5-(bromomethyl)-1,3-dihydroisobenzofuran 

Relevant academic research and scientific papers

Rhodium-NHC hybrid silica materials as recyclable catalysts for [2+2+2] cycloaddition reactions of alkynes

Bis-silylated dihydroimidazolium salt 1 and monosilylated imidazolium salt 2 are transformed to (NHC)RhCl(COD) complexes 3 and 4, allowing the preparation of hybrid silica materials either by sol-gel or grafting processes. Full characterization of the materials by means of solid state NMR, N2-sorption measurements, thermogravimetric analysis (TGA) and elemental analysis was followed by evaluation of catalytic activity in the [2+2+2] cycloaddition of alkynes. Excellent yields of the cycloadducts are obtained for up to six consecutive cycles with the grafted material, using simple filtration to recover the catalyst. Both conventional and microwave heating prove effective for the process described.

Rhodium-NHC hybrid silica materials as recyclable catalysts for [2+2+2] cycloaddition reactions of alkynes

Bis-silylated dihydroimidazolium salt 1 and monosilylated imidazolium salt 2 are transformed to (NHC)RhCl(COD) complexes 3 and 4, allowing the preparation of hybrid silica materials either by sol-gel or grafting processes. Full characterization of the materials by means of solid state NMR, N2-sorption measurements, thermogravimetric analysis (TGA) and elemental analysis was followed by evaluation of catalytic activity in the [2+2+2] cycloaddition of alkynes. Excellent yields of the cycloadducts are obtained for up to six consecutive cycles with the grafted material, using simple filtration to recover the catalyst. Both conventional and microwave heating prove effective for the process described.

Iridium(III)-catalyzed approach for the synthesis of fused arenes: Access to isoindolines, indanes, and dihydroisobenzofurans

A facile and efficient method for the synthesis of isoindoline, indane, and dihydroisobenzofuran derivatives has been developed through the application of a halogen-bridged iridium(III) complex to the [2+2+2] cycloaddition of α,ω-diynes with alkynes. The

Sodium bisulfite: An efficient catalyst for ether formation via dehydration of aromatic/aliphatic alcohol

Straightforward etherification of benzyl alcohols (1) via intermolecular dehydration can be efficiently catalyzed by sodium bisulfite under solvent-free conditions. In the presence of 0.3 mol% or 0.6 mol% amount of sodium bisulfite, symmetric and unsymmetric ethers are prepared from the corresponding alcohols in high yields (up to 95%). Etherification of benzhydryl alcohols is also discussed. Copyright

Ruthenium carbene mediated [2+2+2] cyclotrimerizations

Second-generation Grubbs catalyst and Hoveyda-Grubbs catalyst are able to catalyze both crossed [2+2+2] cyclotrimerization of diynes with alkynes and di- or trimerizations of diynes. Selection of the reaction conditions allows us to favor one particular p

Chiral N-phosphino sulfinamide ligands in rhodium(I)-catalyzed [2+2+2] cycloaddition reactions

The combination of cationic rhodium(I) complexes with N-phosphino tert-butylsulfinamides (PNSO) ligands is efficient for catalytic intra- and intermolecular [2+2+2] cycloaddition reactions. PNSO ligands are a new class of chiral bidentate ligands, which h

Rhodium-catalyzed selective [2 + 2 + 2] cyclizations of 1,6-diynes with monoynes leading to isoindolines and isobenzofurans

A highly efficient and selective [2 + 2 + 2] cyclization of diynes and monoalkynes was catalyzed by rhodium under room temperature in water/THF mixed solvent, affording isoindolines and isobenzofurans in good to excellent yields. The center atoms (N, O) i

PESTICIDAL CONDENSED - RING ARYL COMPOUNDS

Condensed-ring aryl compounds of formula (I) and use of the same as a agrochemical for controlling noxious organisms wherein (X)mQ, A, R1, (Y)n and the grouping -W1-W2-W3-W4- are as defined herein.

AZOLIDINONE-VINYL FUSED-BENZENE DERIVATIVES

The present invention is related to azolidinedione-vinyl fused-benzene derivatives of formula (I) for the treatment and/or prophylaxis of autoimmune disorders and/or inflammatory diseases, cardiovascular diseases, neurodegenerative diseases, bacterial or viral infections, kidney diseases, platelet aggregation, cancer, graft rejection or lung injuries. Formula (I), wherein A, X, Y, Z, R1 , R2 and n are as described in the description.

Rhodium-catalyzed [2 + 2 + 2] cyclotrimerization in an aqueous-organic biphasic system

Macrocyclization via rhodium-catalyzed intramolecular [2 + 2 + 2] annulation of triynes has been explored in an aqueous-organic biphasic system. The biphasic system controls the concentration of hydrophobic substrates in the aqueous reaction phase and offers diluted reaction conditions without the use of a slow addition technique. The system also achieves selective cross-annulation between hydrophobic diynes and hydrophilic alkynes. Copyright