Reductive coupling of carbonyl compounds promoted by cobalt or titanium nanoparticles

One-pot reductive Amination of Carbonyl Compounds using NaBH4 and Fe3O4 Magnetic Nanoparticles

One-pot reaction of aldehydes or ketons with aniline derivatives was performed using NaBH4 and Fe3O4 magnetic nanoparticles (MNPs). The optimum amount of Fe3O4 MNPs was 5 mol% under solvent free condition. The corresponding products were obtained in good to excellent yields. The magnetically recoverable iron oxide nanoparticles are found to be efficient for synthesis of amine derivatives. These...

Enantioselective titanium-promoted 1,2-additions of carbon nucleophiles to carbonyl compounds

one-pot reductive amination of carbonyl compounds using nabh4 and fe3o4 magnetic nanoparticles

one-pot reaction of aldehydes or ketons with aniline derivatives was performed using nabh4 and fe3o4 magnetic nanoparticles (mnps). the optimum amount of fe3o4 mnps was 5 mol% under solvent free condition. the corresponding products were obtained in good to excellent yields. the magnetically recoverable iron oxide nanoparticles are found to be efficient for synthesis of amine derivatives. these...

control of the optical properties of nanoparticles by laser fields

در این پایان نامه، درهمتنیدگی بین یک سیستم نقطه کوانتومی دوگانه(مولکول نقطه کوانتومی) و میدان مورد مطالعه قرار گرفته است. از آنتروپی ون نیومن به عنوان ابزاری برای بررسی درهمتنیدگی بین اتم و میدان استفاده شده و تاثیر پارامترهای مختلف، نظیر تونل زنی(که توسط تغییر ولتاژ ایجاد می شود)، شدت میدان و نسبت دو گسیل خودبخودی بر رفتار درجه درهمتنیدگی سیستم بررسی شده اشت.با تغییر هر یک از این پارامترها، در...

A new approach to 3-hydroxyprolinol derivatives by samarium diiodide-mediated reductive coupling of chiral nitrone with carbonyl compounds.

A flexible diastereoselective approach to trans-(3S)-hydroxyprolinol derivatives is described, which is based on the samarium diiodide-mediated reductive coupling of the chiral 1-pyrroline N-oxide (nitrone)(S)-10 with carbonyl compounds. The reductive hydroxyalkylation of nitrone 10 with ketones and aromatic aldehydes is highly diastereoselective in establishing the C-2 chiral center of the pyr...