An efficient and straightforward synthetic protocol has been developed for the diversity-oriented synthesis of highly functionalized piperidines containing a Meldrum's acid moiety via pseudo five-component reaction between aromatic aldehydes, ammonium acetate, substituted β-nitrostyrenes and Meldrum's acid for the generation of a wide range of structurally interesting and pharmacologically significant compounds.
A one-pot reaction was developed to synthesise a variety of 1-iodoindolizines from substituted acetophenone, acetic acid, pyridine, and molecular iodine. The structure of 3-benzoyl-1-iodoindolizine (2a) and 1,3-dibenzoylindolizine (3a) was further confirmed by X-ray single crystal analysis.
It is controversial that whether capital regulation can really reduce the risk of banks. This paper studied the assets allocation behaviors of banks under supervision and explores the effectiveness of capital regulation based on bank asset allocation strategies. We built a linear programming model to find a certain bank's asset allocation strategies under regulation. Then we established relationship between bank's profit and risk to study bank's risk taking behavior. We found that profit and risk are not exactly positively related and that banks need to make strategies based on its goal-maximum profit or minimum risk. The innovation of this paper lies in asset allocation strategies and linear programming solution.
An one-pot-reaction methodology was developed to synthesize a variety of polysubstituted 3-aryl-2-arylmethylene amino-4-hydroxybenzofurans from substituted β-nitrostyrenes, aromatic aldehydes, ammonium acetate, and cyclohexane-1,3-diones for the generation of a wide range of structurally interesting and pharmacologically significant compounds. The reaction pathway involves Michael addition of substituted nitrostyrenes and cyclohexane-1,3diones, then nucleophilic addition of 2-(2-nitro-1-phenylethyl)cyclohexane-1,3-dione and Schiff base generated from aromatic aldehyde and ammonium acetate and intramolecular cyclization, followed by dehydroaromatization to afford the corresponding 3aryl-2-arylmethyleneamino-4-hydroxybenzofurans.
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