I agree Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our website without changing the browser settings you grant us permission to store that information on your device.
Hexamethylphosphorous triamide is used as a reagent in organic synthesis as a phosphorylating agent. It is associated with carbon tetrachloride for the substitution of hydroxy groups with chlorides. It is involved in the preparation of epoxides and arene oxides from aldehydes and aryldialdehdyes respectively. It is used in the preparation of carbonates as well as reduction of ozonides.
Reduces aromatic aldehydes to symmetrical epoxides in good yield: J. Am. Chem. Soc., 85, 1884 (1963). Both cis- and trans-isomers are formed. For list of examples, see: Org. Synth. Coll., 5, 358 (1973). Under suitable conditions, reaction of the intermediate with a second aldehyde can lead to mixed deoxybenzoins or diaryl enamines: Synthesis, 225 (1991).
Has also been used for a variety of other reductions including that of ozonolysis intermediates: Helv. Chim. Acta, 50, 2387 (1967), and of primary alkyl nitro compounds to nitriles: Synthesis, 36 (1979). Bromohydrins can be converted to alkenes, by reductive elimination from their triflate esters: J. Am. Chem. Soc., 102, 1433 (1980):
Reacts with BrCCl3 to give dichloromethylenephosphorane Cl2C=PPh3, which undergoes Wittig reaction with aldehydes to give 1,1-dichloroalkenes, giving better results than the CCl4/PPh3 combination: Tetrahedron Lett., 1237, 1239 (1977); Synthesis, 554 (1980). Similarly, with Br2CF2, the CF2 group can be transferred to both aldehydes and ketones: J. Fluorine Chem., 1, 123 (1971); Synth. Commun., 3, 197 (1973).
Ioannou, P. V.; Tsivgoulis, G. M. The reduction of p-arsanilic acid (p-aminophenylarsonic acid) to its arsonous acid or arsine oxide: A case study. Main Group Chem. 2015, 14 (3), 237-253.
Bhat, C.; Kumar, A. Synthesis of Allokainic Acid: A Review. Asian J. Org. Chem. 2015, 4 (2), 102-115.
Gefahrenhinweise (EU): H226-H340-H350
Flammable liquid and vapour. May cause genetic defects. May cause cancer.
Do not breathe dust/fume/gas/mist/vapours/spray. Obtain special instructions before use. Wear protective gloves and eye/face protection. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.