𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Photochemical (2+2)-cycloaddition of thioxanthenethione with some butatriene derivatives

✍ Scribed by R.G. Visser; H.J.T. Bos

Publisher
Elsevier Science
Year
1979
Tongue
French
Weight
119 KB
Volume
20
Category
Article
ISSN
0040-4039

No coin nor oath required. For personal study only.

πŸ“œ SIMILAR VOLUMES

Photochemical and thermal (2+2)-cycloadd
Photochemical and thermal (2+2)-cycloaddition of thioxanthenethione to some aliphatic pentatetraenes
✍ R.G Visser; E.A Oostveen; H.J.T Bos πŸ“‚ Article πŸ“… 1981 πŸ› Elsevier Science 🌐 French βš– 119 KB

Reaction of thioxanthene-9-thione 1 with thealkyl substituted pentatetraenes 2a-g gives mixtures of the thietanes 3a-g and 4a-g. The ratio 3/4 in the thermal reaction is strongly dependent on the sub?tituents:-Ifi the case of 2a thermal rearrangement of the product leads to a stable thiete. \_\_ Du

New synthesis of 1,2-bismethylenecyclobu
New synthesis of 1,2-bismethylenecyclobutanes by [2+2] cycloaddition reaction of 1,1-diphenyl-4,4-bis(trifluoromethyl)-butatriene with electron-rich alkenes
✍ Hans Gotthardt; RΓΌdiger Jung πŸ“‚ Article πŸ“… 1984 πŸ› Elsevier Science 🌐 French βš– 119 KB

The titZe compound 1 undergoes thermal [n2s+a2s] cycZoaddition reactions with l,l-di-methoxyethylene or enamines to produce 1,2-bismethyZenecycZobutanes of type 3. Butatrienes display an interesting position-selectivebehaviortowards cycloaddition reactions. For example, recently it has been establis