Niobium(V) chloride-mediated allylation of aldehydes. Scope and stereoselectivity

Organic Synthesis: New Vistas in the Brazilian Landscape

“…Other researchers like de Andrade and Paixão have also contributed to the development of novel useful synthetic methods. We will just provide a few more references for the readers (Andrade and Azevedo 2001, Barreto et al 2016, de la Torre et al 2016) since other reports have been outlined in the previous sections.…”

Gallium(III) Iodide Mediated Mild and Efficient Method for Synthesis of 4-Iodotetrahydropyrans by Cross-Cyclization of Epoxides and Homoallylic Alcohols

“…Therefore, the develo-pment of an efficient method that successfully minimizes the use of Lewis acid would still be useful. In this aspect, Gallium(III) iodide has been found as an efficient Lewis acid because of ease of handling, moisture stability and economic viability [22][23][24][25][26][27][28][29][30][31][32][33][34]. In the ever-increasing quest for exploration of an efficient and versatile method, GaI3 is found as a mild and efficient Lewis acid for the synthesis of 4-iodotetrahydropyrans using epoxides and homo allylic alcohols.…”

Proficient Procedure for Preparation of Quinoline Derivatives Catalyzed by NbCl5 in Glycerol as Green Solvent

“…On the other hand, the oxophilicity of high valence Nb(V) has enabled it to act as the reagent/catalyst for several Lewis acid-mediated reactions such as the intramolecular oxidation-reduction process [16], the Diels-Alder reaction [17], allylation of aldehydes and imines [18,19], and complex formations [20,21].…”