Biomass‐derived di‐ethers, 2,5‐bis(alkoxymethyl)furans (BAMFs), are currently envisaged as promising biodiesel or additives. Herein, Zr‐SBA prepared by a urea hydrolysis method (Zr‐SBA‐UH) is used as a highly active bifunctional catalyst for the reductive etherification of 5‐hydroxymethyl...
Phenyl-, alkyl-, or alkoxy-substituted 1,2-dihydrophosphinin-1-oxides also could be used as a substrate (91HC283, 93HC189, 93HC559, 95HC593). Sign in to download full-size image Scheme 134. Show moreView chapterExplore book Introduction to Zeolite Science and Practice Herman van ...
5-烷氧基-3,4-二卤-2(5H)-呋喃酮 1. Four α,ω-diamines, serving as nucleophiles, were reacted with 5-alkoxy-3,4-dihalo-5H-furan-2-one in the presence of triethylamine to give sixteen new compounds. 在三乙胺作用下,亲核试剂α,ω-二胺与5-烷氧基-3,4-二卤-2(5H)-呋喃酮在室...
Compounds of formula (I) <CHEM> in which X is H, F, Cl, Br, I, C1-4alkyl, CN, NO2, SO2NH2, COOH, CHO, C1-4alkoxy, CH2OH, CF3, SO2CH3, SO2CF3 or CO2CaH2a+1 wherein a is 1-5, or any accessible combination thereof of up to 3 substituents; R is H or C1-4alkyl; an...
K.Dep.J.Dep.VANDep.DENDep.BERGDep.A.Dep.John Wiley & Sons, LtdChemInformde Jong J C,van den Berg K T,van leusen A M. Phenylsulfonyl-substituted 5-alkoxy-2(5H)-furanones: A new class of highly reactive chiral dienophiles[J].Tetrahedron Letters 1991,32(52)....
furan derivativesIt has been proposed that certain 5-alkoxydihydro-2(3H)-furanones should be present in wine1. In an effort to facilitate the isolation and identification of these materials, their synthesis and complete characterization was undertaken.doi:10.1080/00397917908064179...
The pentenylethers of the 2-methylfuranyl and 2-methylthienyl derivatives (i.e., 313, N-[4-chloro-3-(3-methyl-2-butenyloxy)phenyl]- 2-methyl-3... J, Balzarini,WG Brouwer,DC Dao,... - 《Antimicrobial Agents & Chemotherapy》
Shortly after this report, the group of Albizati reported that α,α-dialkoxy trialkylsilylenol ethers such as 73 are very good three-carbon cycloaddition partners in a Lewis acid-induced (4+3) reaction with furan derivatives.31 Although several Lewis acids successfully promoted the reaction in...
furan derivativesChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is ...
furan derivativesThe 4-alkoxyfuranones (III) are prepared by reaction of tetronic acid (I) with the primary or secondary alcohols (II) in the presence of concentrated sulfuric acid.doi:10.1002/chin.198851184ZIMMER, H.AMER, A.CHIEM VAN PHAM, CHIEM VAN PHAM...