𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Eine Desaromatisierungsreaktion. Synthese von Spiro-[5:5]-undecadien-(1,4)-on-(3). Vorläufige Mitteilung

✍ Scribed by André S. Dreiding

Publisher
John Wiley and Sons
Year
1957
Tongue
German
Weight
145 KB
Volume
40
Category
Article
ISSN
0018-019X

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

By heating a dilute solution of the potassium salt of 5‐(p‐hydroxyphenyl)‐1‐bromopentane (I) it is possible to obtain spiro‐[5:5]‐undeca‐1,4‐diene‐3‐one (II) in good yield. During this intramolecular alkylation a phenolic ring is changed into a cyclohexadienone. The term desaromatisation is applied to this reaction.

📜 SIMILAR VOLUMES

Automerisierung von 1,3,5,5-Tetramethylc
Automerisierung von 1,3,5,5-Tetramethylcyclohexa-1,3-dien. Vorläufige Mitteilung
✍ Bruno C. Baumann; André S. Dreiding 📂 Article 📅 1974 🏛 John Wiley and Sons 🌐 German ⚖ 288 KB 👁 1 views

## Abstract 1,3,5,5‐Tetramethylcyclohexa‐1,3‐diene, specifically deuterated in all positions except the __gem__.‐dimethyl groups (**11**), was synthesized and found to undergo a rearrangement in the gas phase at 560°, which leads to a statistical distribution of the 6 hydrogen atoms to all 16 posit

Steroide und Sexualhormone 232. Mitteilu
Steroide und Sexualhormone 232. Mitteilung [1] die synthese von 1β, 4β-oxido-3-aza-17β-hydroxy-a-homo-5α-androstan vorläufige mitteilung
✍ Fr L. G. Eggart; C. Pascual; H. Wehrli 📂 Article 📅 1967 🏛 John Wiley and Sons 🌐 German ⚖ 227 KB

Comme produits organiques de scission, nous avons quelquefois is016 la diaryl(ou aralcoyl ou alcoy1)-ur6e R'NH-CO-NH-R', par exemple la diphenylurke dans le cas de la scission, aux pH 2-5, des acides ph6nylcarbamylamino-alcoyl-phosphoriques. Nous n'avons jamais is016 des d6riv6s cycliques qui auraie

Thermische Umlagerung von 2-Oxa-bicyclo
Thermische Umlagerung von 2-Oxa-bicyclo [3.3.1]-non-7-en-3-on; eine neuartige Lactonumlagerung. Vorläufige Mitteilung
✍ György Fráter 📂 Article 📅 1979 🏛 John Wiley and Sons 🌐 German ⚖ 145 KB

**Thermal Rearrangement of 2‐Oxa‐bicyclo [3.3.1]‐non‐7‐en‐3‐ones; a Novel Lactone Rearrangement** Lactone (+)‐**2** was prepared by iodolactonisation and subsequent elimination in 51% yield from the known acid (+)‐**1** (__Scheme 1__). Alkylation of (+)‐**2** furnished (+)‐**3a**, (+)‐**3b** and (+