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Publikováno v:
Synlett. 33:166-170
Selective anodic oxidation of alcohols in the presence of other functional groups can be accomplished by using nitroxyl radical mediators. However, the electrochemical chemoselective oxidation of secondary alcohols in the presence of primary alcohols
Publikováno v:
Synthesis. 53:3343-3350
Reductive cleavage of aromatic and benzylic C–O bonds by chromium catalysis is reported. This deoxygenative reaction was promoted by low-cost CrCl2 precatalyst combined with poly(methyl hydrogen siloxane) as the mild reducing agent, providing a str
Publikováno v:
Synthesis. 53:688-698
An investigation of the reaction of 3,4-trans-isoxazolidine-4,5-diols with Grignard reagents is described for the first time. Their resemblance to five-membered cyclic hemiacetals allows them to react as α-hydroxy-β-(hydroxyamino)aldehydes in a hig
Publikováno v:
Synlett. 32:283-286
A one-pot synthesis of new 3-benzylphthalide derivatives was developed by using a strategy based on tetrakis(dimethylamino)ethylene (TDAE). The reactions in the presence of TDAE of substituted benzyl chlorides with methyl 2-formylbenzoate or of subst
Publikováno v:
Synlett. 32:45-50
Starting from methyl cycloheptatrienyl-1-carboxylate, 6-acylation was successfully achieved employing glutaryl chloride in the presence of AlCl3 under controlled reaction conditions to furnish keto carboxylic acid product. After protection of this ke
Publikováno v:
Synlett. 31:1121-1125
In the present work, we have developed a practical methodology for the hydrodehalogenation of o-haloanilides using PdCl2 at 100 °C under mild conditions in water. The catalytic system could selectively dehalogenate both aryl chloride and aryl bromid
Publikováno v:
Synthesis. 52:1425-1434
An intramolecular Friedel–Crafts cyclization reaction catalyzed by indium(III) chloride for the formation of 4-vinyl-1,2,3,4-tetrahydroisoquinoline from N-tethered benzyl-alkenol in good yields has been described. The reaction is highly regioselect
Autor:
Omid Khaledian, Issa Yavari
Publikováno v:
Synthesis. 52:1379-1386
A novel copper-catalyzed [3+2] cycloaddition reaction with concomitant in situ generation of benzoylacrylonitriles and nitrile imines from phenacylmalononitriles and hydrazonoyl chlorides, respectively, is reported. The reaction was performed using c
Publikováno v:
Synlett
(Z)-6-(4-Chloro-5H-1,2,3-dithiazol-5-ylidene)-4-methylcyclohexa-2,4-dien-1-one, readily prepared from 4,5-dichloro-1,3,4-dithiazolium chloride and p-cresol, reacts with benzene-1,2-diamine to give N-(2-aminophenyl)-2-hydroxy-5-methylbenzimidoyl cyani
Publikováno v:
SynOpen, Vol 03, Iss 04, Pp 138-141 (2019)
A convenient one-pot synthesis of allylsilanes from enolizable methyl aryl ketones has been developed. The first step involves nucleophilic addition of the trimethylsilylmethyl group to ketones using the alkylation method developed by Ishihara with s