Use of Piperidine and Pyrrolidine in Knoevenagel Condensation
نویسندگان
چکیده
منابع مشابه
Mechanochemical Knoevenagel condensation investigated in situ
The mechanochemical Knoevenagel condensation of malononitrile with p-nitrobenzaldehyde was studied in situ using a tandem approach. X-ray diffraction and Raman spectroscopy were combined to yield time-resolved information on the milling process. Under solvent-free conditions, the reaction leads to a quantitative conversion to p-nitrobenzylidenemalononitrile within 50 minutes. The in situ data i...
متن کاملMulticomponent self-sorting of a Pd7 molecular boat and its use in catalytic Knoevenagel condensation.
Unique three-component self-assembly of a cis-blocked 90° Pd(II) acceptor with a mixture of tri- and tetra-imidazole donors led to the self-sorting of a Pd7 molecular boat with an internal nanocavity, which catalyses the Knoevenagel condensation of a series of aromatic aldehydes with 1,3-dimethylbarbituric acid and Meldrum's acid in aqueous media.
متن کاملSynthetic Studies of Alkaloids Containing Pyrrolidine and Piperidine Structural Motifs
Our molecules of interest were mainly 2-substituted pyrrolidine and piperidine alkaloids containing 1, 3-aminoketone and 1, 3-aminoalcohol units which are of special synthetic interest (Figure 1). Hygrine and norhygrine belong to the class of tropane alkaloids. The rest of the alkaloids are isolated from 60 species of the genus Sedum and are usually referred as Sedum alkaloids which are of imme...
متن کاملcomparative analysis of the use of hedges & emphatics in english and persian academic research articles of sociology & psychology
چکیده ندارد.
15 صفحه اولSynthesis of substituted stilbenes via the Knoevenagel condensation.
Knoevenagel condensations between aldehydes and substrates containing active methylene groups were carried out in ethanol at room temperature, in the presence of potassium phosphate, to afford unsymmetrical olefins. These condensations have been shown to afford only the E-isomers in greater than 80% yields. Salicylaldehyde first produces the Knoevenagel condensation products, which undergo a su...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Organic & Medicinal Chemistry International Journal
سال: 2018
ISSN: 2474-7610
DOI: 10.19080/omcij.2018.05.555668