Asymmetric Michael addition catalyzed by
Novel sugar-based azacrown ethers with phosphinoxidoalkyl side-chain were synthesized. They show asym. induction as phase-transfer catalysts in the Michael addition of 2-nitropropane to chalcone (95% ee) and to 3-fur-2-yl-1-phenyl-2-propen-1-one (80% ee). In the experiment, the researchers used many compounds, for example, N-(5-Bromopentyl)phthalimide (cas: 954-81-4Formula: C13H14BrNO2).
N-(5-Bromopentyl)phthalimide (cas: 954-81-4) belongs to organobromine compounds. Organo bromine compounds are versatile compounds and are widely used in diverse fields. Organo bromine derivatives are used in the dye sector, as an indicator in analytical chemistry (Bromothymol blue is a popular indicator). Bromine-containing agents predominate because not only are they more efficient than similar chlorine-containing species, but also the high atomic weight of bromine ensures that it is present in a high mass fraction within most organobromine compounds.Formula: C13H14BrNO2
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary