[PDF] Top 20 Un análisis de las Funciones Ejecutivas, el Lenguaje y su relación, en niños diagnosticados en el Trastorno del Espectro Autista
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Synthesis of a New Series of 4H-benzo[h]chromenes by a Multicomponent Reaction under Solvent-Free Microwave Conditions
... 1) under microwave condition. After completion of the reaction, as indicated by TLC, methanol (5 mL) was added to the reaction ...The reaction mixture was filtered to separate the ... See full document
24
Preparation and Characterization of a Molybdenum(VI) Schiff Base Complex as Magnetic Nanocatalyst for Synthesis of 2-Amino-4H-benzo[h]chromenes
... the synthesis of biologically interesting compounds, the development of economical, eco-friendly and effective methods is ...reactions under solvent-free conditions have drawn a lot of ... See full document
38
An ultrasonic assisted multicomponent reaction for the synthesis of 3, 4 dihydropyrimidin 2(1H) ones under solvent free condition
... employing microwave [21], ultrasound [22], solid and fluorousphase syntheses [23] have been ...acidic conditions, and higher temperatures and require longer reaction ...of new methods at ... See full document
8
Synthesis of polycyclic heterocycles through domino Knoevenagel intramolecular hetero Diels–Alder reaction under solvent free and microwave irradiation conditions
... longer reaction time and some expensive ...the synthesis of some new benzopyrano-pyrano-pyrazole derivatives with and without the use of microwave irradiation under solvent ... See full document
26
Microwave-assisted multicomponent reaction for the synthesis of 2-amino-4H-chromene derivatives using ilmenite (FeTiO3) as a magnetic catalyst under solvent-free conditions
... a new and efficient technique for reagent activation in the synthesis of organic compounds [22-24], has been successfully applied for the synthesis of heterocyclic compounds under mild ... See full document
75
ONE POT SYNTHESIS OF 3, 4 TETRAHYDROPYRIMIDINE 5 CARBOXYLATE USING LANTHANUM (III) CHLORIDE (LACL3 7H2O) AS A CATALYST
... The mechanism of the Biginelli reaction has recently been revised by Kappe. 15 Based on this work we suggest the following mechanism for the Lanthanum (III) chloride -catalyzed Biginelli reaction (Scheme ... See full document
102
Tetrabutylammonium Bromide: An Efficient Catalyst for the Synthesis of Xanthenediones under Solvent-free Conditions
... exploratory reaction, condensation of benzaldehyde and 5,5-dimethyl- 1, 3-cyclohexanedione were taken as amodel reactionto establish the feasibility of our strategy and to optimize reaction ... See full document
9
Facile One Pot Synthesis of Novel Hexahydro 2 quinolinecarboxylic Acids under Solvent Free Reaction Conditions
... facile synthesis of 5-oxo-4- phenyl-1,4,5,6,7,8-hexahydro-2-quinolinecarboxylic ac- ids without the addition of any catalysts under solvent- free conditions at room ...the ... See full document
232
Microwave Promoted Perchloric Acid catalyzed One Pot Synthesis of Xanthene Derivatives under solvent –free conditions
... the synthesis of 12-aryl-8, 9, 10, 12-tetrahydrobenzo[a]-xanthen- 11-one and 14-aryl -14H- dibenzo[a,j] xanthene derivatives : A mixture of aromatic aldehydes(1mmol), and β-naphthol (1mmol),dimedone ...mmol).The ... See full document
40
Design, synthesis of pyrazol 1 carbaldehyde derivatives under microwave irradiation in solvent free conditions and their biological investigation
... the synthesis of pyrazol- 1-carbaldehyde derivatives 5(a-f) under microwave irradiation in aqueous ...media. Reaction of hydrazine on the synthesized chalcones 3(a-d) gave corresponding ... See full document
63
Synthesis of some isatin Schiff bases in microwave irradiation condition
... efficient synthesis of isatin Schiff bases was described under microwave irradiation and solvent free ...reacted under microwave irradiation into the corresponding isatin ... See full document
11
Transition metals as efficient catalysts for transesterification of Beta keto Esters under Solvent-free conditions
... conducted under conventional reflux as well as sonication condition in toluene ...the reaction time was increased for about 2 hrs ie. 12‒16 h at 100‒1200 °C, as Ni complexes become active only at ... See full document
6
Microwave-assisted synthesis of phenanthro[9, 10-d]imidazole derivatives under solvent-free and one pot conditions
... pot synthesis for the preparation of substituted imidazoles through three- component condensation of aldehydes, [9, 10]- phenanthroquinone and ammonium acetate in Microwave ...short reaction times, ... See full document
28
A Green Microwave Assisted Synthesis of New Pyridazinium Based Ionic Liquids as an Environmentally Friendly Alternative
... 18 h. The completion of the reaction was marked by the separation of solid from the initially obtained clear and homogenous mixture of pyridazine and alkyl halide in ... See full document
14
One Pot Four Component Reaction for the Synthesis of Formazans in an Environmentally Benign Procedure Mediated by KHSO4
... Formazans obtained were confirmed by comparing their melting points with those reported in literature. Melting points were recorded in open capillaries and are uncorrected. Products were purified by repeated column chro- ... See full document
318
Synthesis of N-formyl morpholine as green solvent in the synthesis of organic compounds
... simplicity, solvent and catalyst-free media, mild reaction conditions, environmentally friendly reaction conditions, the compatibility with various functional groups are the main ... See full document
10
Synthesis, characterization and biological studies of 9 aryl substituted acridinedione derivatives by hantzsh condensation
... The reaction was also carried out employing rapid microwave or conventional heating and sonication as alternative energy source 9 ...synthesize new acridinedione ... See full document
15
An efficient One pot Synthesis of 1, 4 Dihydropyridine Derivatives under Solvent free Condition
... Synthesis of 1, 4 – Dihydropyridines were accomplished by the condensation of Acetoacetnilide, Aromatic aldehydes and Ammonium acetate in the presence of Bismuth trichloride as catalyst under solvent ... See full document
14
Synthesis of 1,8-dioxo-octahydroxanthenes under solvent-free conditions via Phosphorus pentoxide supported on alumina (P2O5/Al2O3) catalyzed tandem reaction of Aldehyde with dimedone
... one-pot synthesis of 1,8-dioxo-octahydroxanthenes via multi-component reactions under solvent-free ...short reaction times, high yields, easy purification, recovery and reusability of ... See full document
30
β-Cyclodextrain sulfonic acid as a biodegradable solid catalyst in benzoxanthenes synthesis
... All commercially available chemicals were purchased from Fluka and Merck companies and use without furtherpurification. IR spectra were recorded on a BOMEM MB-series 1998 FT- IR spectrophotometer. Reaction ... See full document
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