Thermolysis of syn- and anti-tricyclo[4.2.0.02,5]octane
β Scribed by Hans-Dieter Martin; Erwin Eisenmann
- Publisher
- Elsevier Science
- Year
- 1975
- Tongue
- French
- Weight
- 170 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0040-4039
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## Abstract The carbon and proton NMR spectra of __syn__β and __anti__βtricyclo[5.1.0.0^3,5^]octanes and their dichlorocarbene Cο£ΏH bond insertion products were determined by conventional 1D and 2D methods. Partially relaxed proton spectroscopy was carried out in some instances to aid in the separat
## Abstract The two novel tricyclic C~10~H~16~ compounds __anti__β and __syn__βtricyclo [4.2.1.1^2,5^]β decane (**16** and **17**, respectively) were synthesized starting either from the photodimer **2** (__anti__) or the two cycloaddition products **8** (__anti__) and **9** (__syn__).
The addition of a variety of electrophiles to the semicyclic double bond of 1 and 4 has been studied. The anti/syn-product ratios show that the=inter&ztion between the Walsh-and n-orbitals causes only small selectivities. Photoelectron spectra revealed a sizeable (H.. = -0.338) through space interac
The diamagnetic anisotropy of the double bond and long range shielding effects in n.m.r. spectra have been the subject of a number of theoretical and experimental 8tudies.l Efforts to test the predictions of the sign and