A new strategy for the J-based configurational analysis in acyclic systems is applied where the existence of a multiple conformer equilibrium precludes the application of the Murata methodology.
Stereochemistry
In this subdiscipline:
1,139 papers
Popular papers
-
-
-
In the course of the routine use of NMR as an aid for organic chemistry, a day-to-day problem is the identifica- tion of signals deriving from common contaminants (water, solvents, stabilizers, oils) in less-than-analyti- cally-pure samples. This…
-
-
1H NMR data for cis-3-n-propoxycyclohexanol (cis-3-PCH) and cis-3-isopropoxy-cyclohexanol (cis-3-ICH) show that a concentration increase shifts the conformational equilibrium from the diaxial (aa) conformer, stabilized by an intramolecular hydrogen…
-
Protoapigenone (1), isolated from Thelypteris torresiana, previously showed significant cytotoxic activity against five human cancer cell lines. In a continued structure-activity relationship study, the first total synthesis and modification of 1…
-
Computer-based multimedia learning environments consisting of pictures (such as animation) and words (such as narration) offer a potentially powerful venue for improving student understanding. How can we use words and pictures to help people…
-
-
Hydrogels are high-water content materials prepared from cross-linked polymers that are able to provide sustained, local delivery of a variety of therapeutic agents. Use of the natural polymer, chitosan, as the scaffold material in hydrogels has…
-
Thinking with images plays a central role in scientific creativity and communication but is neglected in science classrooms. This article reviews the fundamental role of imagery in science and technology and our current knowledge of visual-spatial…
-
Remarkable changes in the binding affinity and selectivity of pyridine-based receptors toward monosaccharides have been observed when the degree of steric hindrance at pyridine nitrogen atom decreases
-
Cultivation of the marine-derived streptomycete isolate B8005 delivered three known antibiotics, resistomycin (1), resistoflavin (3a) and tetracenomycin (4), and a further member of the rare resistomycin class, the weakly antibiotically active…
-
-
-
Hamamelis virginiana (witch hazel) bark is a rich source of condensed and hydrolyzable tannins reported to exert a protective action against colon cancer. The present study characterizes different witch hazel tannins as selective cytotoxic agents…
-
Purpose: To evaluate the effect of the anti-fibrotic protein serum amyloid P (SAP) on radiation-induced oral mucositis (OM) and fibrosis in a hamster cheek-pouch model. Experimental Design: Hamsters received a single dose of radiation (40 Gy) to the…
-
The regio- and stereoselective osmium-catalyzed aminohydroxylation of (+)-2-carene (99% ee), and (+)-3-carene (99% ee), (-)-beta -pinene (99% ee) and (-)-camphene (75% ee) with chloramine-T was described. The beta -hydroxy-p-toluenesulfonamide…
-
New spin-state-selective (S3) NMR pulse sequences exclusively applying cross-polarization schemes to achieve optimum homonuclear and heteronuclear 1H-X coherence transfer are reported for the simple and accurate measurement of the magnitude and sign…
-
-
Sign up today - FREE
Mendeley saves you time finding and organizing research. Learn more
- All your research in one place
- Add and import papers easily
- Access it anywhere, anytime
Start using Mendeley in seconds!
Active members
-
Lecturer -
Student (Bachelor)
-
ProfessorUniversidad Autonoma del Estado de Morelos
-
Student (Bachelor)
-
Doctoral Student