منابع مشابه
One-pot synthesis of block-copolyrotaxanes through controlled rotaxa-polymerization
The aqueous reversible addition fragmentation chain-transfer (RAFT) copolymerization of isoprene and bulky comonomers, an acrylate and an acrylamide in the presence of methylated β-cyclodextrin was employed for the first time to synthesize block-copolyrotaxanes. RAFT polymerizations started from a symmetrical bifunctional trithiocarbonate and gave rise to triblock-copolymers where the outer pol...
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An operationally simple, one-pot, three-step tandem method has been developed to afford 4-arylamino-5-carboxyl pyrimidine derivatives, which engages four reactive substrates (triphosgene, arylamine, ethyl acetoacetate, substituted ureas ) employing triethylamine as catalyst. The key advantages of this unique, atom-economical reaction are short reaction time, high yields, simple workup, purifica...
متن کاملOne-pot synthesis of 5-arylidene-2-imino-4-thiazolidinones under microwave irradiation.
A rapid and easy solvent free one-pot synthesis of 5-arylidene-2-imino-4-thiazolidinones by condensation of the thioureas with chloroacetic acid and an aldehyde under microwave-irradiation is described.
متن کاملAn efficient one-pot synthesis of dimethyl 1-(Aryl)-5-cyano-4-(cyclohexylamino)-1,2,5,6-tetrahydro-6-oxopyridine-2,3-dicarboxylate derivatives
Abstract: The reactive 1:1 intermediate produced in the reaction between cyclohexyl isocyanide and electron- deficient acetylenic esters or dimethyl acetylene dicarboxylate was trapped by 2-cyano-N-(Aryl) acetamides to provides highly functionalized oxopyridine (potential synthetic and pharmaceutical interest ) in acetonitrile under mild reaction conditions at ambient temperature after 24 h ...
متن کامل5-Aminouracil as a Building Block in Heterocyclic Synthesis, Part II. One-pot Synthesis of Pyrido[3,2-d:6,5-d′]dipyrimidines under Microwave Irradiation without Catalyst
The derivatives of fused pyrimidines are valued not only for their rich and varied chemistry, but also for many important biological properties [1 – 3]. Among them, the pyridodipyrimidines (PDP) have been shown to exhibit antibacterial and antiviral properties [4, 5] as well as NAD-type redox catalytic activity [6 – 10]. A few methods are reported in the literature for the preparation of pyrido...
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ژورنال
عنوان ژورنال: Arkivoc
سال: 2023
ISSN: ['1551-7012', '1551-7004']
DOI: https://doi.org/10.24820/ark.5550190.p012.046