Highly stereoselective photodimerization of 1,3-dimethylthymine in liquid crystalline media
โ Scribed by Takehisa Kunieda; Toshie Takahashi; Masaaki Hirobe
- Book ID
- 104226271
- Publisher
- Elsevier Science
- Year
- 1983
- Tongue
- French
- Weight
- 152 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0040-4039
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โฆ Synopsis
Ordered media such as cholesteric and smectic solvents greatly enhance the stereoselectivity and the rate in photodimerization of 1,3_dimethylthymine, in contrast to the isotropic phase reactions leading to a poor product-selectivity.
There has been considerable current interest in the chemical effects produced by organized molecular assemblies such as miscelles, monolayers and liquid crystals.
1-3 This is primarily because of their analogies to some biological systems such as membranes and related structures.
๐ SIMILAR VOLUMES
Ribose complexed with resorcinol-dodecanal cyclotetramer via hydrogen bonding in Ccl4 undergoes highly stereoselective glycosidation with methanol to give methyl B-ribofuranoside under mild and neutral conditions. Ribose can be solubilized in Ccl4 upon formation of a hydrogen-bonded 1:l complex wit
Cycloalkenones are shown to be mesogens and can be synthesised in near quantitative yields by a convergent palladium(0)catalysed cross-coupling strategy; a 2-methyl group induces a change of phase from smectic to nematic.