Cationic polymerization of 3,6-dibromo-9-(2,3-epoxypropyl)carbazole with triphenylcarbenium salts (triphenylcarbenium bexachloroantimonate, triphenylcarbenium tetrafluoroborate and triphenylcarbenium pentachlorostannate) has been studied by a microcalorimetric technique. Acceleration of polymerizati
Polymerization of 9-(2,3-epoxypropyl)carbazole with complexes of potassium compounds and 18-crown-6
✍ Scribed by G. Buika; J.V. Graẑulevičius
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 305 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0014-3057
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📜 SIMILAR VOLUMES
Reactions of substituted N-methoxynitroaniline derivatives (1) or 2-methoxyamino-3,5-dinitropyridine (2) with potassium hydroxide afford the corresponding potassium salts (K + A -) in high yield. After dissolution of these salts in dichloromethane in the presence of 18-crown-6 ether (18-C-6), the ad
## 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