THE BLUE CRYSTAL MATH DIARIES

two youthful men working medications in the road - copyright stock pics, royalty-cost-free photos & imagesIn the Nagai technique, the β-hydroxyl group on ephedrine or pseudoephedrine is protonated forming a hydronium ion leaving group. A nucleophilic substitution reaction then occurs with the iodide anion. Drinking water is shed to offer iodoephed