✦ LIBER ✦
Transfer of substituent influence into the remote aromatic ring in 4′-R-dibenzo-crown ethers
✍ Scribed by V. F. Loktev; I. L. Mudrakovsky; A. K. Tashmukhamedova; I. A. Stempnevskaya; I. J. Morozova
- Book ID
- 102527492
- Publisher
- John Wiley and Sons
- Year
- 1990
- Tongue
- English
- Weight
- 209 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0749-1581
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✦ Synopsis
Abstract
^13^C NMR studies of 4′‐R‐dibenzo‐18‐crown‐6 and 4′‐R‐dibenzo‐24‐crown‐8 showed that the substituent influence is transferred through the macrocycle to a remote aromatic ring. The transfer is due to steric effects and depends on crown ether complex formation.