One type of these molecules can be formed from the reaction between a carbine and an imine, or the light-induced opening of an aziridine. Another one of these molecules transforms carbonyls to thiocarbonyls when the carbonyl oxygen attacks it, formin
One type of these molecules can be formed from the reaction between a carbine and an imine, or the light-induced opening of an aziridine. Another one of these molecules transforms carbonyls to thiocarbonyls when the carbonyl oxygen attacks it, forming a four-membered thiaoxaphosphetane intermediate. A third example of these molecules can react with enones, imines, or ketones, to create cyclopropanes, aziridines, or epoxides, respectively. In addition to Lawesson's reagent, one of these molecules is a polar aprotic solvent whose deuterated form is used in NMR, dimethyl sulfoxide. Many of them are stabilized via a resonance structure containing a double bond, but the single-bonded structure participates more actively in chemical reactions such as the Corey-Chaykovsky reaction. For 10 points, name these types of zwitterions, one form of which is added to a carbonyl to form a Z-alkene in the Wittig reaction, which contain a negatively charged atom bonded to a positively charged atom.
One type of these molecules can be formed from the reaction between a carbine and an imine, or the light-induced opening of an aziridine.
ylide