Journal ArticleDOI
Mannich reaction with 5,5-dimethyl-3-phenylamino-2-cyclohexen-1-one
TLDR
The reaction of Mannich du compose du titre avec la morpholine, piperidine ou piperazine as discussed by the authors, a reaction avec des amines primaires fournit des quinazolones-5.4b] azepine.Abstract:
Reaction de Mannich du compose du titre avec la morpholine, la piperidine ou la piperazine. La reaction avec des amines primaires fournit des quinazolones-5. Preparation d'un derive de la 9H-pyrimido-[5,4-b] azepineread more
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Reference EntryDOI
The Schmidt Reaction
TL;DR: The Schmidt reaction has been modified to include analogous reactions in which the hydrazoic acid is replaced by an alkyl azide, promoted by Lewis acids as mentioned in this paper, allowing the formulation of intramolecular Schmidt reactions of the azide with a carbonyl or carbocationic electrophile.
Journal ArticleDOI
Facile construction of substituted pyrimido[4,5-d]pyrimidones by transformation of enaminouracil
TL;DR: The reaction of 6-amino-1,3-dimethylpyrimidine-2,4(1H,3H)-dione as a binucleophile with primary aromatic or heterocyclic amines and formaldehyde or aromatic aldehydes in a molar ratio (1:1:2) gave the pyrimido[4,5-d]pyrimidin- 2,4-dione ring systems 2–5.
Journal ArticleDOI
Catalytic Enantioselective Desymmetrization of Cyclobutane-1,3-diones by Carbonyl-Amine Condensation
TL;DR: A chiral phosphoric acid-catalyzed enantioselective condensation of 2,2-disubstituted cyclobutane-1,3-diones with a primary amine is described in this article.
Journal ArticleDOI
Chemoselective Synthesis of Enamino‐Coumarin Derivatives Identified as Potent Antitumor Agents
TL;DR: The reaction of 4-aminocoumarin (2) with benzaldehyde gave the bisenamino derivatives 4, 5, 6 and 7, respectively as discussed by the authors, and transamination of 2 with o-phenylenediamine furnished enamino skeleton 3, which can be obtained from 1.
Journal ArticleDOI
Synthesis and some reactions of functionalized 11,12-dihydro-5H-dibenzo[b,g]azonines
TL;DR: In this paper, the Fischer reaction of Dihydro-5H-dibenzo[b,g]azonine-6,13-dione (2) has been used as a precursor in the synthesis of the indolo[2,3-e]dibbenzo[ b,g],azonine and tribenzo [b, g,j][1,6]diazacyclododecine ring systems via a Fischer indolization/periodate oxidation sequence.