Synthesis of Optically Pure Diaza-12-crown-4 with a Pendant Group.
โ Scribed by Chi-Wan Lee
- Publisher
- John Wiley and Sons
- Year
- 2010
- Weight
- 30 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0931-7597
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## Abstract A series of inherently chiral calix[4]arenes with cone and partial cone conformations and with crown ether moieties of variable size have been readily synthesized. By taking advantage of the carboxy appendage on the lower rim, these were condensed with the chiral auxiliary (__S__)โBINOL
## Abstract This study deals with the synthesis of a polyphenol bearing photosensitive groups, and its photochemical behavior upon UV irradiation. Mesoionic 5โ(4โhydroxybenzyl)โ6โoxoโ1,2,3โtriphenylโ1,6โdihydropyrimidinโ3โiumโ4โolate was prepared by condensation of 4โbenzyloxybenzylmalonic acid wit