1467-28-3Relevant academic research and scientific papers
Organophosphorus ligands with XPNSO skeleton (X = O, S) and their Pd(II) complexes. Crystal and molecular structure of [{XP(OEt)2}(O 2SR)]NH (X = O, R = Me, Ph; X = S, R = C6H 4Cl-4) and Pd[{SP(OEt)2}(O2SC6H 4Cl-4)N]2
Oltean, Dorel,P?llnitz, Alpar,Silvestru, Anca
, p. 67 - 75 (2013/05/08)
Several organophosphorus acids of type [{XP(OEt)2}(O 2SR)]NH [X = O, R = Me (1), Ph (2), C6H4CH 3-4 (3); X = S, R = C6H4Cl-4 (4)] were obtained by a method based on the reaction between (EtO)2P(X)NHLi and the corresponding organosulfonyl chloride. They were subsequently deprotonated with KOBut. Salt metathesis reactions between PdCl2 and the corresponding potassium salts K[{XP(OEt)2}(O2SR)N] [X = O, R = Me (5), Ph (6), C6H4CH3-4 (7); X = S, R = C6H4Cl-4 (8)] in a 1:2 molar ratio resulted in palladium(II) complexes of type Pd[{XP(OEt)2}(O2SR)N] 2 [X = O, R = Me (9), Ph (10), C6H4CH 3-4 (11); X = S, R = C6H4Cl-4 (12)]. In a similar way was obtained the palladium(II) complex Pd[(SPPh2)(O 2SPh)N]2 (13), using the appropriate reagents. All compounds were characterized by multinuclear NMR (1H, 13C, 31P) and infrared spectroscopy. The potassium salts and the palladium complexes were investigated also by mass spectrometry. Single-crystal X-ray diffraction studies revealed a layered supramolecular assembly in case of acid 1, a monomeric structure for compound 4, while in case of compound 2 dimeric associations are formed in the solid state by NH?OP hydrogen bonding. A trans-S,N-coordination pattern of the organophosphorus ligand was found in the palladium complex 12. Moreover, short Cl?H contacts result in a polymeric [Pd[{SP(OEt)2}(O2SC6H 4Cl-4)N]2]n chain.
THE APPLICATION OF PHASE-TRANSFER CATALYZED VERSION OF ATHERTON-TODD REACTION TO SULFONAMIDES
Lukanov, L. K.,Venkov, A. P.,Mollov, N. M.
, p. 767 - 774 (2007/10/02)
A number of sulfonylphosphoramidates have been prepared by phase-transfer catalyzed version of Atherton-Todd reaction.
