Novel C10 carbocyclic systems via schmidt fragmentation of pentacyclo[5.4.0.02,6.03,10.05,9]undecane-8,11-dione
β Scribed by Goverdhan Mehta; P. Ghosh; B. Chaudhuri; V.K. Singh; R. Usha; K.I. Varughese; K. Venkatesan
- Publisher
- Elsevier Science
- Year
- 1977
- Tongue
- French
- Weight
- 214 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0040-4039
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π SIMILAR VOLUMES
the independent rings which comprise the compound. I.r. and Raman spectra were recorded, and a vibrational analysis was performed on the spectral quantities. The standard thermodynamic properties in the ideal-gas state were calculated in the temperature range 100 K to 1000 K. The calculated standard
The title molecule, C 13 H 14 O 3 , is a chiral molecule which exhibits C-C single-bond lengths that deviate from the expected value. Both enantiomers are present in the crystal structure.
Reaction of Pentaeyclo[5.4.0.02,6.03'10.05'9] undecmle-8,l l-dione (l) with ethanedithiol, when performed in the presence of a Lewis acid catalyst (F3B-OEt2), afforded the corresponding mono(ethylene dithioacetal), 2, along with 7,8-[(thicethano)thio]pentacyclo[6.3.0.02,6.03, lO.05,9]undecan-l 1-on
Photoelectron spectra of six 8,11-disubstituted pentacycloundecanes (1, 3 -7) are reported; the results suggest that the through-space interaction betweeen unsaturation centers in 1 and 3 dominates over the through-bond interaction mechanism.
## Abstract The production of compounds derived from intramolecular photocycloaddition reactions upon DielsβAlder adducts has received considerable attention, but assignment of the NMR spectra of the photoaddition products has proved problematic, rendering structural determination difficult. This p