Stereochemistry of 3-arylideneflavanones and their thio analogues by the use of 3J(CH) couplings
✍ Scribed by Gábor Tóth; Åron Szöllösy; Albert Lévai; György Oszbach; Wolfgang Dietrich; Harald Kühne
- Book ID
- 102529560
- Publisher
- John Wiley and Sons
- Year
- 1991
- Tongue
- English
- Weight
- 310 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0749-1581
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✦ Synopsis
Abstract
The application of the ^3^J(HCXC) couplings in 3‐arylideneflavanones and 3‐arylidenethioflavanones allows a semi‐quantitative estimation of the conformational equilibrium.
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OMS Letters ## Dear Sir Hypervalent Radicals ; the Generation of CH,O(H)CH, , CH,O(H)C,H, and Their O-(D) Analogues by Neutralization of the Corresponding Cations
## Abstract The vicinal ^3^__J__(CH~3~CCH) coupling constants were determined for a number of propylene derivatives and compared with the ^3^__J__(HCCH) couplings of the corresponding ethylenes. A linear regression analysis yielded the correlation ^3^__J__(CH) = 0.46 ×^3^ __J__(HH)+1.58 Hz, the c