## Abstract The 2‐carboamoylethyl side chains in 7,16‐bis(2‐carbamoylethyl)‐1,4,10,13‐tetraoxa‐7,16‐diazacyclooctadecane are shown by NMR to be preferentially complexed as in the __anti__ conformation ˜2.
Ionic complexation of N2O4 by 18-crown-6
✍ Scribed by S. Ricard; P. Audet; R. Savoie
- Publisher
- Elsevier Science
- Year
- 1988
- Tongue
- English
- Weight
- 293 KB
- Volume
- 178
- Category
- Article
- ISSN
- 0022-2860
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
## Abstract Reaction of TiF~4~ and 18‐crown‐6 in MeCN affords the molecular complex [(__cis‐__TiF~4~)~2~(18‐crown‐6)] (1) only. Water and THF displace the 18‐crown‐6 in the tetrafluoro complex 1, with the formation of __cis‐__TiF~4~L~2~. The complex __cis‐__TiF~4~(H~2~O)~2~ and 18‐crown‐6 form [{__
## Abstract A number of non‐ionic compounds have been found to form solid complexes with 18‐crown‐6. The highest efficiencies of isolation and the highest selectivities were obtained with nitromethane, dimethyl carbonate and dimethyl oxalate. The usefulness of these compounds was demonstrated in th
Stereospecific syntheses of the cis-trans-isomer of dicyclohexano-18-crown-6 allows the K + complexation behavior of all five dicyclohexano-18-crown-6 isomers to be compared.