Metal nanoparticle-decorated carbon spheres (mn-CSs) are prepared by combining one-pot hydrothermal synthesis and post-synthesis modification. The former sol-gel type process is employed to obtain heteroatom-containing polymer spheres (PSs), which easily attract metal species that, during thermal treatment, are initially converted to nanoparticle-decorated PSs and finally to mn-CSs.

Please cite this article in press as: Li, Y.; et The highly efficient asymmetric total synthesis of indole alkaloid, ( )-corynantheidol, containing a 2,4,5trisubstituted piperidine core, was achieved using a new version of the one-pot azaelectrocyclization reaction. The formal synthesis of ( )-corynantheidine was also achieved using the common synthetic intermediate for these corynantheines. 20...

A concise and efficient one-pot synthesis of 3-functionalized 4-hydroxycoumarin derivatives via a three-component domino reaction of 4-hydroxycoumarin, phenylglyoxal and 3-arylaminocyclopent-2-enone or 4-arylaminofuran-2(5H)-one under catalyst-free and microwave irradiation conditions is described. This synthesis involves a group-assisted purification process, which avoids traditional recrystal...

One-pot synthesis of heterocycles having a nitromethyl group was achieved by sequential steps that involved chloronitration of alkenes using iron(III) nitrate nonahydrate followed by elimination and intramolecular Michael addition. This reaction provides an efficient method for the synthesis of heterocycles due to the simple experimental procedure and the use of inexpensive reagents of low toxi...

To develop a new facile protocol for the synthesis of 2'-aminobenzothiazolo-arylmethyl-2-naphthol derivatives, N-bromosuccinimide (NBS) was used as an efficient catalyst for the one-pot synthesis of 2'-aminobenzothiazolo-arylmethyl-2-naphthols in excellent yields from β -naphthol (1 mmol), aromatic aldehydes (1 mmol), and 2-aminobenzothiazole (1 mmol) at 60°C under solvent-free conditions.

Well-defined oligosaccharides are important requirements in evaluating structure-activity relationships to decipher the roles of carbohydrates in various physiological processes. These oligosaccharides are accessed mainly through chemical synthesis, which nonetheless remains a huge undertaking despite the many advances in recent years. A combinatorial and regioselective one-pot protection strat...

the synthesis of functionalized 2-oxo-2h-coumarin derivatives has been studied by a one-pot reaction of o-hydroxybenzaldehyde, ethyl 2-bromoacetate and triphenylphosphine in the presence of catalytic amount of triethyl amine in etoac, water or under solvent free conditions. we have found the best results obtained under solvent free condition.

a  convenient  and  efficient  one-pot  four-component  synthesis  of  1,  2,  4,  5-tetrasubstituted  imidazoles  using  nano  tio2  as  a  recyclable  catalyst  is  reported.  the results  show  that  the  methodology  has  several  advantages  such  as  low  loading  of catalyst,  excellent  yield,  short  reaction  time,  operational  simplicity  and  solvent-free conditions.

sulfuric acid {[3-(3-silicapropyl)sulfanyl]propyl}ester (saspspe) is employed as a recyclable catalyst for the synthesis of α-amino nitriles. these syntheses were performed via a one-pot three-component condensation of aldehydes, amines, and trimethylsilyl cyanide under mild reaction conditions at room temperature. the catalyst could be recycled and reused several times without any loss of effi...

an efficient and direct procedure for the synthesis of benzo[h]-indeno[1,2-b]-quinoline derivatives has been described. the procedure employs a three-component condensation reaction in one-pot using 2h-indene-1, 3-dione, naphthalen-1-amine,and aldehydes in the presence of catalytic amount of l-prolinein aqueous media.