Add to ORKGThe $^13C$ NMR spectra of several 1,3-pyridylmethyl ureas and their corresponding thioureas have been obtained. The $^13C$ chemical shifts, and the direct and long range $^13C$ ---$^1H$ coupling constants have been deduced. The results indicate an E, Z molecular conformation for 1,3-pyridylmethyl ureas and thioureas which is stabilized by internal N---H N (pyridine) hydrogen bonding
Several N,N-²-arylalkyl thioureas were examined with 1H-NMR and i.r. spectra in order to study the c...
1H and 13C NMR spectra are reported for several pyridylamides and thionamides. Complete analyses of ...
The interaction between urea and tetrabutylammonium acetate was investigated in dimethylformamide/di...
A study of molecular conformation by $^1H and ^{13}C$ NMR methods of three 1,Idipyridyl thioureas na...
1H and 13C NMR spectra are reported for several 1,3-pyridylphenyl ureas. Analysis of the spectra yie...
1H and 13C NMR spectra are reported for several 1,3-pyridylphenyl ureas. Analysis of the spectra yie...
The $^{13C}$ NMR spectra of a series of 1,3-dipyridyl- and pyridylphenylthioureas have been obtained...
The $^{13C}$ NMR spectra of a series of 1,3-dipyridyl- and pyridylphenylthioureas have been obtained...
Several N,N -dipyridyl- and N-phenyl-N -pyridyl-thioureas were examined in different solvents at var...
Several N,N -dipyridyl- and N-phenyl-N -pyridyl-thioureas were examined in different solvents at var...
Abstract: The H-1 NMR spectra of N-(2-pyridyl), N'-(3-pyridyl)ureas and N-(2-pyridyl), N'-(4-pyridyl...
Abstract: The H-1 NMR spectra of N-(2-pyridyl), N'-(3-pyridyl)ureas and N-(2-pyridyl), N'-(4-pyridyl...
Studies of $^1H$ and $^{13}C$ chemical shifts and of $^1H-^lH$, $^{l3}C-^1H$ coupling constants of 1...
Studies of $^1H$ and $^{13}C$ chemical shifts and of $^1H-^lH$, $^{l3}C-^1H$ coupling constants of 1...
Several N,N-²-arylalkyl thioureas were examined with 1H-NMR and i.r. spectra in order to study the c...
Several N,N-²-arylalkyl thioureas were examined with 1H-NMR and i.r. spectra in order to study the c...
1H and 13C NMR spectra are reported for several pyridylamides and thionamides. Complete analyses of ...
The interaction between urea and tetrabutylammonium acetate was investigated in dimethylformamide/di...
A study of molecular conformation by $^1H and ^{13}C$ NMR methods of three 1,Idipyridyl thioureas na...
1H and 13C NMR spectra are reported for several 1,3-pyridylphenyl ureas. Analysis of the spectra yie...
1H and 13C NMR spectra are reported for several 1,3-pyridylphenyl ureas. Analysis of the spectra yie...
The $^{13C}$ NMR spectra of a series of 1,3-dipyridyl- and pyridylphenylthioureas have been obtained...
The $^{13C}$ NMR spectra of a series of 1,3-dipyridyl- and pyridylphenylthioureas have been obtained...
Several N,N -dipyridyl- and N-phenyl-N -pyridyl-thioureas were examined in different solvents at var...
Several N,N -dipyridyl- and N-phenyl-N -pyridyl-thioureas were examined in different solvents at var...
Abstract: The H-1 NMR spectra of N-(2-pyridyl), N'-(3-pyridyl)ureas and N-(2-pyridyl), N'-(4-pyridyl...
Abstract: The H-1 NMR spectra of N-(2-pyridyl), N'-(3-pyridyl)ureas and N-(2-pyridyl), N'-(4-pyridyl...
Studies of $^1H$ and $^{13}C$ chemical shifts and of $^1H-^lH$, $^{l3}C-^1H$ coupling constants of 1...
Studies of $^1H$ and $^{13}C$ chemical shifts and of $^1H-^lH$, $^{l3}C-^1H$ coupling constants of 1...
Several N,N-²-arylalkyl thioureas were examined with 1H-NMR and i.r. spectra in order to study the c...
Several N,N-²-arylalkyl thioureas were examined with 1H-NMR and i.r. spectra in order to study the c...
1H and 13C NMR spectra are reported for several pyridylamides and thionamides. Complete analyses of ...
The interaction between urea and tetrabutylammonium acetate was investigated in dimethylformamide/di...