40057-64-5Relevant academic research and scientific papers
Phosphorus-nitrogen compounds. Part 56. The solution synthesis of some trans-1,3-dialkyl-2,4-diphenyl-2,4-dithiocyclodi-λ5- phosphazanes and their proton, carbon-13, and phosphorus-31 nuclear magnetic resonance spectra
Shaw, Robert A.,Watkins, David A.
, p. 2591 - 2596 (2007/10/02)
A series of trans-1,3-dialkyl-2,4-diphenyl-2,4-dithiocyclodi- λ5-phosphazanes, [PhP(S)NR]2 (R = Me, Et, Pr n, Pri, Bun, Bui, Bus, But, neopentyl, CH2Ph, or cyclohexyl) has been synthesized by a solution method and their proton, carbon-13, and phosphorus-31 n.m.r. spectra obtained. The relationships between phosphorus-31 and carbon-13 n.m.r. chemical shift data are explored; interpretation of proton n.m.r. data has led to the assignment of trans structures for the cyclodi-λ5- phosphazane molecules. Inductive and resonance substituent coefficients have been evaluated using the dual-substituent parameter method from the relative shieldings of the meta- and para-carbon nuclei in the phenyl ring.
Phosphorus-Nitrogen Compounds. Part 51. Carbon-13 and Phosphorus-31 Nuclear Magnetic Resonance Properties of Phenylphosphonothioic Di(monoalkylamides). Determination of Aromatic Substituent Constants by (13)C Nuclear Magnetic Resonance Spectroscopy
Parkes, Harold G.,Shaw, Robert A.,Watkins, David A.
, p. 2479 - 2484 (2007/10/02)
Carbon-13 and phosphorus-31 n.m.r. spectra have been obtained for a series of phenyl-phosphonothioic di(monoalkylamides), PhP(S)(NHR)2 (R=H, Me, Et, Prn, Pri, cyclopropyl, Bun, Bui, Bus, But/sup
PHOSPHORUS-NITROGEN COMPOUNDS. PART XLVI. CYCLODIPHOSPHAZANES DERIVED FROM PHENYLPHOSPHONOTHIOIC DIAMIDES
Argent, Peter J.,Healy, James D.,Ibrahim, Ezzeldine H.,Shaw, Robert A.,Woods, Michael
, p. 95 - 102 (2007/10/02)
P-Phenyl-N,N'-dialkyl(aryl)phosphonothioic diamides, PhP(S)(NHR)2, R=Me, Prn, Bun, Bui, cyclopropyl, CH2Ph, Ph, o- and p-MeC6H4, o-, m- and p-MeOC6H4 and o-and p-ClC6H4, decompose at 160-260 deg C to give cyclodiphosph(V)azanes, 2.The diamides, PhP(S)(NHR)2, R=H, Pri, Bus and BUt, decompose on heating to give the cyclotriphosphazane, 3.The 1H nmr spectra of the cyclic dimers are discussed: trans-structures are assigned to all the products.
