Tetrahedron letters

Synthesis of the first stable metadithiophosphonate

J Navech, JP Majoral, R Kraemer

Index: Navech, J.; Majoral, J. P.; Kraemer, R. Tetrahedron Letters, 1983 , vol. 24, # 52 p. 5885 - 5886

Full Text: HTML

Citation Number: 69

Abstract

: yield 55% ; mp : 96–7 °C ; 31 P NMR (C 6 H 6 ,δ ) + 85 ppm ; 1 H NMR (C 6 D 6 ,· ) 2.07 (6H, J PCNC = 3.7 Hz), 7.1 (H, J PCH =12.7Hz ), 7 (aromatic protons) ; 13 C NMR (CDCl 3 , δ ) : 30.4 and 32.6 ( ) 32.9, 33.9 and 34.0 ( H 3 ) 41.5 (NCH 3 J PCN- = 21.7 Hz) and 37.5 (N H 3 , no observable J -CN- ) 183.9 ( =PJ PC =90.5 Hz) ; mass spect. M-1: 333 ; analysis. : yield 40% , oil, 31 P NMR (C 6 H 6 , δ ) + 96.3 ppm ; mass spect. M + 348.