One-pot multicomponent synthesis of a new series of curcumin-derived 4H-pyrans under ambient conditions

Design and synthesis of a new series of pharmaceutically interesting curcumin-derived 4H-pyrans have been accomplished via a one-pot tandem reaction between curcumin, aromatic aldehydes, and malononitrile under the influence of sodium formate as a mild base in ethanol at ambient conditions. Operational simplicity, mild reaction conditions, use of a cheap and nontoxic organocatalyst and eco-friendly solvent, and easy isolation of target products are the key benefits associated with the process.     

Dendrimer eigen-characteristics

Journal of Mathematical Chemistry - Local graph symmetry groups act in a non-identical fashion on just a proper (local) subset of a graph’s vertices, and consequent theorems for adjacency...     

Sequential Two-Fold Claisen Rearrangement,One-Pot Ring-Closing Metathesis and Cross-Metathesis as a Route to Substituted Benzo[b]azepine-2-one,Benzo[b]azepine and Benzo[b]oxepine Derivatives

A synthetic protocol involving sequential use of three atom-economic processes viz. Claisen rearrangement, ring-closing metathesis and cross metathesis has been developed to access 7-substituted benzo[b]azepine and benzo[b]oxepine derivatives starting from appropriate aniline or phenol in good overall yield. A one-pot RCM-CM protocol has also been developed for the synthesis of benzazepine and benzoxepine derivatives.     

Exact Solution of the Time Fractional Variant Boussinesq-Burgers Equations

Applications of Mathematics - In the present article, we consider a nonlinear time fractional system of variant Boussinesq-Burgers equations. Using Lie group analysis, we derive the infinitesimal...     

Semi-infinite moving crack between two bonded dissimilar isotropic strips

Meccanica - The problem of a moving semi-infinite crack between two bonded dissimilar isotropic strips has been considered. The mixed boundary value problem has been reduced to a standard...