نتایج جستجو برای: naphthol green b
تعداد نتایج: 1028218 فیلتر نتایج به سال:
1 Ashton, D. S., Beddell, C. R., Green, B. N. and Oliver, R. W. A. (1994) FEBS Lett. 342, 1-6 2 Rademacher, T. W., Parekh, R. B. and Dwek, R. A. (1988) Annu. Rev. Biochem. 57, 785-838 3 Montreuil, G., Bouquelet, S., Debray, H., Lemoine, J., Michalski, J.-C., Spik, G. and Strecker, G. (1994) in Carbohydrate Analysis (Chaplin, M. F. and Kennedy, J. F., eds.), pp. 181-294, IRL Press at Oxford Univ...
[B(OH)3]0.78[B(OH)2(OSO3H)]0.22 or (BSA) was simply prepared by addition of chlorosulfonic acid to commercial boric acid at room temperature. This cheap and green solid acid was used as an efficient catalyst for synthesis of acylals from aldehydes under solvent-free conditions at room temperature.
[B(OH)3]0.78[B(OH)2(OSO3H)]0.22 or (BSA) was simply prepared by addition of chlorosulfonic acid to commercial boric acid at room temperature. This cheap and green solid acid was used as an efficient catalyst for synthesis of acylals from aldehydes under solvent-free conditions at room temperature.
One-pot multicomponent condensation of β-naphthol, aromatic aldehydes, acetamide or urea in the presence of potassium hydrogen sulfate was carried out under solvent-free condition to afford amidoalkyl naphthols in 83%~96% yields.
A microwave-assisted Pd(0)-catalyzed alkyne migratory insertion/β-naphthol dearomatization cascade process has been accomplished to access a variety of spirocyclic compounds bearing all-carbon quaternary stereogenic centers in high yields with excellent chemoselectivities.
In the title compound, C(22)H(21)NO(5)S, the 2-naphthol group and the thio-phene ring are almost coplanar, with a dihedral angle of 5.75 (7)°. The structure is stabilized by intra-molecular O-H⋯O, O-H⋯N and C-H⋯S, and inter-molecular C-H⋯O hydrogen-bonding inter-actions.
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