𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Intramolecular double Michael reaction. Part II. Synthesis of isoatisirene type compound

✍ Scribed by Masataka Ihara; Masahiro Toyota; Keiichiro Fukumoto; Tetsuji Kametani


Publisher
Elsevier Science
Year
1984
Tongue
French
Weight
264 KB
Volume
25
Category
Article
ISSN
0040-4039

No coin nor oath required. For personal study only.


📜 SIMILAR VOLUMES


Synthesis of spirocyclic compounds by th
✍ H. A. P. de Jongh; Hans Wynberg 📂 Article 📅 2010 🏛 Elsevier Science 🌐 English ⚖ 557 KB

## Abstract The double Michael reaction between the acyclic cross‐conjugated dienones dibenzalacetone or divinyl ketone and cyclohexane‐1,3‐diones gives new, substituted spiro [5,5] undecane‐l,5,9‐triones. Some of these are reduced to the corresponding spirodiketone or monoketone.

Enantioselective synthesis of 6-oxygenat
✍ Masataka Ihara; Akihito Hirabayashi; Nobuaki Taniguchi; Keiichiro Fukumoto 📂 Article 📅 1992 🏛 Elsevier Science 🌐 French ⚖ 730 KB

An enantioselective synthesis of a 6oxygenated atisine derivative 20 is described. The atisine skeleton 18 was stereoselectively constructed by the intramolecular double Michael reaction of the enone ester 16. derived. through the al&hy& 3, from the symmetrical ketone 4. The diterpenoid alkaloids ha