Using DMSO under the influence of molecular sieves 4, the aza-Henry reaction of various N-tosylimines with nitroalkanes proceeds smoothly to afford β-nitroamines in high yields.doi:10.1002/chin.201542093Isobe, ToshihiroKato, AtsukiOriyama, Takeshi...
In 1H NMR data, chemical shifts are quoted in ppm and referenced to the residual solvent signals (DMSO-d6, δ = 2.49), and signal splitting patterns are described as singlet (s), doublet (d), triplet (t), quartet (q), multiplet (m), and broad (br). Coupling constants (JH-H) ...
The methylene proton (K, L) of 2a showed an ambiguous AB pattern (doublet-doublet) in DMSO-d6 , where- as that of 2b showed a distinct AB pattern in both CDC13 and DMSO-d6 solvents. On the other hand, the methylene proton (M, N) of 2a showed a stronger AB pattern in DMSO-...
Hindawi Publishing Corporation Journal of Chemistry Volume 2013, Article ID 767825, 6 pages http://dx.doi.org/10.1155/2013/767825 Research Article Easy Access to Coumarin Derivatives Using Alumina Sulfuric Acid as an Efficient and Reusable Catalyst under Solvent-Free Conditions Ali Amoozadeh, Majid ...
The 1H NMR (DMSO-d6) chemical shift (δ) values were as follows: 3.90 (s, 3H), 4.00 (s, 6H), 7.43 to 7.60 (m, 2H), 7.65 (s, 2H), and 7.85 to 7.95 (m, 2H). The electron ionized mass spectrometry (EIMS) mass-to-ratio (m/z) values and corresponding percentage were as ...
Ensuing studies showed that the efficiency of formation of this product was highly solvent dependent (entries 1–9). Importantly, reaction in chloroform occurs in yields as high as 41% in a highly stereoselective manner ( > 30:1 E/Z ratio; entry 9). In contrast, reactions taking place in...
The interface interaction between DMSO solution and HMX crystal was simulated by molecular dynamics (MD) method, and the morphology of HMX in DMSO solvent
In our results, it may be a change due to the solvent used in the NMR analysis as the shift of the proton signal located in the CA cavity was very small. Hence, we also performed 2D ROESY to understand the details of complex formation through the spatial proximity between the host and ...
as this depends on crystal shape, size, packing, and solvent content among other parameters41. Starting a time-resolved experiment with a prebound ligand is an elegant solution to the problem, even though it would be interesting to study to what extent ligand binding and unbinding follow the...
Solvent H2O Methanol Ethanol DCM Acetonitrile Toluene DMSO Hexane Solvent less Catalyst GO-CuFe2O4 GO-CuFe2O4 GO-CuFe2O4 GO-CuFe2O4 GO-CuFe2O4 GO-CuFe2O4 GO-CuFe2O4 GO-CuFe2O4 GO-CuFe2O4 Catalyst loading 20 wt % 20 wt % 20 wt % 20 wt % 20 wt % 20 wt %...