Carbonylierende Ringerweiterung, 3. Stereochemie der Komplexierung und carbonylierenden Ringerweiterung von 1,3,5-Trimethyl-1,3-cyclohexadien
โ Scribed by Eilbracht, Peter ;Hittinger, Christel ;Kufferath, Klaus
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1990
- Tongue
- English
- Weight
- 874 KB
- Volume
- 123
- Category
- Article
- ISSN
- 0009-2940
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Ring Enlargement of 1,2-Thiazol-3(2H)-one-l,l-dioxides and 3-Amino-2H-azirines to 4H-1,2,S-Thiadiazocin-6-one-l, 1-dioxides Reaction of 3-amino-2H-azirines 2 with the 1,l-dioxides 4 and 7 of 1,2-thiazol-3(2H)-ones and 1,2-thiazolidin-3-ones, respectively, in i-PrOH at room temperature leads to 4H-1
## Abstract Starting from geranylโacetoacetic ester, 3,6,10โtrimethylโ3โcarbohydroxyundecaโ1,5,9โtriene has been prepared. This sesquiterpenic acid, a new isomer of farnesic acid, is converted by action of a mixture of formic and sulphuric acid, into a bicyclic hydroxyacid, the skeleton of which is