𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Propellanes—XLIII: Inhibition of secondary orbital control in diels-alder reactions of certain propellanes with 4-substituted-1,2,4-triazoline-3,5-diones

✍ Scribed by P. Ashkenazi; J. Kalo; A. Rüttimann; D. Ginsburg

Publisher
Elsevier Science
Year
1978
Tongue
French
Weight
515 KB
Volume
34
Category
Article
ISSN
0040-4020

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Propellanes. Part LXXI. Confirmation of
Propellanes. Part LXXI. Confirmation of predicted regiospecificity in Diels-Alder reactions of certain propellanes with 4-phenyl-1,2,4-triazoline-3,5-dione
✍ Pnina Ashkenazi; Menachem Kaftory; Tuǧmaç Sayraç; Günther Maier; David Ginsburg 📂 Article 📅 1983 🏛 John Wiley and Sons 🌐 German ⚖ 156 KB 👁 1 views

## Abstract Two isomeric propellane epoxides **1a** and **1b** containing a cyclohexadiene ring are attacked by the title dienophile as predicted, __syn__ to the five‐membered ether ring whose α‐hydrogens exert less repulsion than the α‐epoxy hydrogens or the epoxide oxygen, respectively, of the cy

Propellanes. LXVI. Exo- and Endo-Diels-A
Propellanes. LXVI. Exo- and Endo-Diels-Alder adducts of 4-substituted 1,2,4-triazoline-3, 5-diones with various 1, 6-methano [10]annulenes
✍ Pnina Ashkenazi; Menachem Kaftory; David Ginsburg 📂 Article 📅 1983 🏛 John Wiley and Sons 🌐 German ⚖ 177 KB

## Abstract Relatively few __exo__‐adducts have been obtained from the title compounds. Only one such mono‐adduct, **3**, is known. Several __exo‐endo__‐bis‐adducts have been obtained but the structure of one of these, **5**, has been proved unequivocally by X‐ray structural determination.