✦ LIBER ✦

1,6;8,13-Butandiyliden-[14]annulen

✍ Scribed by Prof. Dr. Emanuel Vogel; Dr. Wolfgang Sturm; cand. chem. Hans-Dieter Cremer

Publisher: John Wiley and Sons
Year: 1970
Tongue: English
Weight: 267 KB
Volume: 82
Category: Article
ISSN: 0044-8249
DOI: 10.1002/ange.19700821306

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

1,6;8,13-Propandiyliden-[14]annulen

✍ Prof. Dr. Emanuel Vogel; Dr. Axel Vogel; Dipl.-Chem. Hans-Klaus Kübbeler; Dr. Wo 📂 Article 📅 1970 🏛 John Wiley and Sons 🌐 English ⚖ 262 KB

1,6; 8,13-Bisoxido-[14]annulen

✍ Prof. Dr. E. Vogel; Dr. M. Biskup; A. Vogel; Dr. H. Günther 📂 Article 📅 1966 🏛 John Wiley and Sons 🌐 English ⚖ 254 KB

anti-1,6;8,13-Bismethano-[14]annulen

✍ Prof. Dr. Emanuel Vogel; Dr. Ulrich Haberland; Doz. Dr. Harald Günther 📂 Article 📅 1970 🏛 John Wiley and Sons 🌐 English ⚖ 346 KB 👁 1 views

1,6:8,13-Propanediylidene[14]annulene

✍ Prof. Dr. Emanuel Vogel; Dr. Axel Vogel; Dipl.-Chem. Hans-Klaus Kübbeler; Dr. Wo 📂 Article 📅 1970 🏛 John Wiley and Sons 🌐 English ⚖ 350 KB

1,6:8,13-Butanediylidene[14]annulene

✍ Prof. Dr. Emanuel Vogel; Dr. Wolfgang Sturm; Hans-Dieter Cremer 📂 Article 📅 1970 🏛 John Wiley and Sons 🌐 English ⚖ 251 KB

Chemically, the aromatic character of (2) manifests itself in the formation of substitution products upon treatment of the compound with electrophilic reagents. As in syn-1,6 : 8,13 bisoxido[l4]annulene [sbl, the first substituent preferentially enters at position 2.

1,6:8,13-Diepoxy[14]annulene

✍ Prof. E. Vogel; Dr. M. Biskup; A. Vogel; Dr. H. Günther 📂 Article 📅 1966 🏛 John Wiley and Sons 🌐 English ⚖ 221 KB

3b) and (4b) were obtained in a total yield of 93 % and a ratio 6:94. Replacement of the KOC(CH3)3 by the stronger base lithium piperidide altered this ratio to 60:40. This reversal, and the marked dependence of the isomer ratio on temperature, piperidine concentration, and solvent, suggest that rea