Molecular enthalpies: 2. ground-state thermodynamic and computed enthalpies of bicyclo[2.2.2]octa-2,5,7-triene and its hydrogenation products
β Scribed by D. W. Rogers; F. J. McLafferty; K. Channamallu
- Publisher
- Springer
- Year
- 1992
- Tongue
- English
- Weight
- 476 KB
- Volume
- 3
- Category
- Article
- ISSN
- 1040-0400
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The order of directing ability is modified on complexation, the most remarkable change being the high efficiency of the F-group. The AB system of H-C(4) and H-C(5) of 4 overlaps with a signal associated with 3 (4.61 ppm). When the lithiation was carried out at -40Β°, 7 YO of 4 and 82 % of 3 were for
## Abstract The kinetics of cleavage of 3βhydroxybicyclo[4.2.0]octaβ1,3,5βtrienβ7βones in aqueous sodium hydroxide, and of the alkoxy and acetoxy analogues in methanolic sodium methoxide solution, were examined under pseudoβfirstβorder reaction conditions. The dependence of the rate upon the basici