phosphonium sentence in Hindi

Examples

1. Other examples include substituted phosphonium salts ( R 4 Bi + ) have also been described.
2. In contrast to phosphonium ylides used in the Wittig reaction, phosphonate-stabilized carbanions are more nucleophilic but less basic.
3. Recently, besides their novel uses in phosphonium coupling, they have also found similar utilities in certain cross coupling reactions.
4. Recent discussions included a quest for a chemical that explodes on contact with light, and the chemical properties of phosphonium nitrate.
5. It reversibly accepts dihydrogen at relatively low temperatures to form the phosphonium borate "'2 "'which can reduce simple hindered imines.
6. Phosphonium coupling generates in situ a pseudo aryl or heteroaryl halide ( the intermediate phosphonium species ), and subsequently reacts with the other coupling partners under the suitable conditions.
7. Phosphonium coupling generates in situ a pseudo aryl or heteroaryl halide ( the intermediate phosphonium species ), and subsequently reacts with the other coupling partners under the suitable conditions.
8. To form the Wittig reagent ( ylide ), the phosphonium salt is suspended in a solvent such as diethyl ether or " n "-butyllithium is added.
9. After a two-step conversion to the corresponding phosphonium salt, wittig union of phosphonium salt with aldehyde, fragment C, proceeded in 76 % yield and good selectivity.
10. After a two-step conversion to the corresponding phosphonium salt, wittig union of phosphonium salt with aldehyde, fragment C, proceeded in 76 % yield and good selectivity.