The reaction of substituted benzylazobenzene -hydroperoxides, 2a–f, with 2,3-dimethyl-2-butene in C6D6 at 34° produced tetramethyloxirane in 90% yield; was of the first order in ROOH and in alkene; and exhibited an excellent LFER vs. sigma values (ρ=1.1 ± 0.1)....
a Data was obtained from the 1H NMR measurements. Table 2. Thermogravimetric and colorimetric (TG-DSC) data of complexes 1 and 2. ComplexStepsTemp. range (K)DTG (K)Peak natureMass loss (%)Found (Calc.)Decomposition SpeciesResidua 1 1st 327–469 395 Endo 3.08 (2.89) Coordinated H2O [BzT...
1H, 13C, and 119Sn nuclear magnetic resonance (NMR) spectra were measured in dimethyl sulfox- ide (DMSO)-d6 at ambient temperature on a JEOL Lambda 400 FT-NMR and a JEOL JNM GX-270 FT-NMR System spectrometer operating at 400.14 MHz for 1H and 100.63 MHz for 13C NMR. The infrared ...
The 1H-NMR-spectra were recorded at 400 MHz and the 13C-NMR-spectra at 100 MHz. The chemical shifts in ppm were measured relative to the residual solvent signals as internal standards (CDCl3, 1H: 7.26 ppm, 13C: 77.1 ppm; DMSO-d6, 1H: 2.50 ppm, 13C: 39.5 ppm). Spin-spin ...
Their 1H-NMR spectra in DMSO-d6 exhibited a broad singlet peak centered at 10.10–10.90 and 11.61–13.22 due to two NH protons. The peaks at 4.60–4.93 are characteristic for CH2 protons. The 13C-NMR of 6a-i in DMSO-d6 revealed peaks at 151.5–153.0 ppm which are ...