Phosphorus–nitrogen compounds. Part 51. Carbon-13 and phosphorus-31 nuclear magnetic resonance properties of phenylphosphonothioic di(monoalkylamides). Determination of aromatic substituent constants by<sup>13</sup>C nuclear magnetic resonance spectroscopy
作者:Harold G. Parkes、Robert A. Shaw、David A. Watkins
DOI:10.1039/dt9870002479
日期:——
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, neopentyl, cyclopentyl, cyclohexyl, or CH2Ph). Inductive and resonancesubstituent coefficients have been evaluated using the dual-substituent parameter method from the relative shieldings of the meta- and para-carbon