Synthesis of 1,3-Cyclotetradecanediones by Ring Enlargement
✍ Scribed by Dr. H. J. Buysch; Prof. Dr. S. Hünig
- Publisher
- John Wiley and Sons
- Year
- 1966
- Tongue
- English
- Weight
- 224 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0044-8249
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
## Abstract The addition of dichlorocarbene to the double bond of 1‐alkoxy‐dihydrophosphole oxides and subsequent thermolysis of the adduct so obtained affords mixtures of the two double bond isomers of alkoxy‐dihydrophosphinine oxides, if the latter step is carried out in the presence of triethyla
Silabicyclo[3.1.0] hexane 2 obtained from silacyclopent-3-ene 1 by dichlorocarbene addition is useful in the synthesis of ring-expanded products, such as silacyclohexa-2,4-diene 3 and 5-alkoxysilacyclohex-3-enes 5. Catalytic hydrogenation of compound 3 affords silacyclohexane 4. The new heterocycle
The double bond of the P-alkoxy 3,4-dimethyl-2,5dihydro-1 H-phosphole I -oxides reacts easily with dichlorocarbene to give two diastereomers of an unstable adduct useful in the synthesis of ring expanded products, such as I ,2-dihydrophosphinine oxides or I ,2,3,6-tetrahydrophosphinine oxides. The f