The separation of p-xylene from a mixture of four C8 alkylaromatics has been realized through highly selective inclusion by an adamantane-based molecule via crystallization. Further, the host molecule specifically discriminated p-xylene from eight C8 and C9 aromatic compounds.

An adamantane-bearing macrocycle exhibited permanent intrinsic porosity and adsorption of small guests in single-crystal-to-single-crystal fashions. The guest capture resulted in the structural transformations of supramolecular organic frameworks.

No abstract

Fluorination of oximes with the relatively mild diethylaminosulfur trifluoride/tetrahydrofuran (DAST–THF) system affords imidoyl fluorides. These compounds were isolated, and their structures were confirmed by X-ray single-crystal structure analysis. Reaction of imidoyl fluorides with various nucleophiles efficiently afforded amides, amidines, thioamides, and amine derivatives in high yields. Furthermore, one-pot reaction of in situ generated imidoyl fluorides from oximes was also applicable to efficient synthesis of these products. The oxime stereochemistry and acid-labile protecting group remained intact in this system.

b] Dr.M.K awahata Showa PharmaceuticalUniversity 3-3165 Higashi-Tamagawagakuen, Machida, Tokyo1 94-8543 (Japan) Supporting information and the ORCID identification number(s) for the author(s) of this articlecan be found under: https://doi.