Functionalized β-cyclodextrin as supramolecular ligand and their Pd(OAc)2 complex: highly efficient and reusable catalyst for Mizoroki–Heck cross-coupling reactions in aqueous medium
作者:Someshwar D. Dindulkar、Daham Jeong、Hwanhee Kim、Seunho Jung
DOI:10.1016/j.carres.2016.04.024
日期:2016.7
supramolecular platform for phosphine-free Mizoroki-Heck cross-coupling reactions in water. The efficient arylation of alkenes was carried out using different iodo- and bromo-arenes with good to excellent yields (up to 96%). The advantages, like recyclability of catalysts, operational simplicity and accessibility in aqueousmedium, make this protocol eco-friendly.
H<sub>2</sub>SO<sub>4</sub>-Promoted Synthesis of (<i>E</i>)-Stilbenes from Substituted Phenylacetones and Substituted Benzaldehydes Through Tandem Aldol–Grob Reaction
作者:T. Narender、K. Papi Reddy、Sriniwas Tiwari
DOI:10.1080/00397911.2010.488309
日期:2011.5.3
[image omitted] Stilbene derivates (stilbenoids) are present in plants and show a wide range of biological activities and potential therapeutic value. In continuation of our natural product synthesis program, an efficient, simple, and practical method has been developed to regioselectively synthesize (E)-stilbenes using H2SO4 as a catalyst in a short time (30-60s) at room temperature in good to excellent yields.