Using carbon dioxide and calix[4]arenes to separate sodium.
نویسندگان
چکیده
Reversible CO2-induced precipitation of a calix[4]arene-based complex leads to selective separation of Na+ salts.
منابع مشابه
Synthesis and capsule formation of upper rim substituted tetra-acrylamido calix[4]arenes.
Upper rim substituted tetraiodo calix[4]arenes are coupled to a variety of acrylamides using the palladium catalysed Heck reaction. Tetra-acrylamido upper rim substituted calix[4]arenes are obtained in good yields with exceptionally high stereoselectivity, to produce the all-trans isomers. Tetra-acrylamido calix[4]arenes derived from secondary acrylamides are shown to dimerise via eight hydroge...
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Macrocycles with up to 100 atoms have been synthesised using two calix[4]arenes as templates: first, (3,5-dialkenyloxy)phenyl groups are attached to the wide rim of a calix[4]arene via urea links, then the alkenyl groups are connected via a metathesis reaction using a tetratosylurea calix[4]arene for their correct prearrangement and finally the urea functions are cleaved to detach the newly for...
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Calixarenes and related compounds are established scaffolds useful as ligands and very popular as building blocks for molecular design. At the same time, the use of these compounds is virtually always defined by the ability of researchers to prepare them efficiently in useful quantities, and in a controlled fashion. As an example, calix[4]arenes, calix[6]arenes, and calix[8]arenes gained popula...
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ورودعنوان ژورنال:
- Chemical communications
دوره 46 شماره
صفحات -
تاریخ انتشار 2007