𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Vicarious Nucleophilic Substitution (VNS) of Hydrogen in Azulenes

✍ Scribed by M??goikosza, Mieczyslaw ;Kuciak, Renata ;Wojciechowski, Krzysztof


Publisher
John Wiley and Sons
Year
1994
Tongue
English
Weight
416 KB
Volume
1994
Category
Article
ISSN
0947-3440

No coin nor oath required. For personal study only.

✦ Synopsis


Abstract

Azulene reacts with carbanions bearing a leaving group according to the vicarious nucleophilic substitution (VNS) scheme. Treatment of 6‐chloroazulene with such carbanions affords the VNS reaction and nucleophilic aromatic substitution (S~N~Ar) products. magnified image


πŸ“œ SIMILAR VOLUMES


Hydroxylation and Amination of Azulenes
✍ MΔ±Λ‡eczysΕ‚aw Makosza; Renata Podraza πŸ“‚ Article πŸ“… 2000 πŸ› John Wiley and Sons 🌐 English βš– 233 KB πŸ‘ 2 views

Hydroxylation of azulenes with tert-butylhydroperoxide active nucleophile, also reacts with unsubstituted azulene. A variety of transformations of 6-hydroxyazulenes, such as proceeds efficiently at the 6-position when the former contain electron-withdrawing substituents in the five-substitution of t

Vicarious nucleophilic substitution of h
✍ MieczysΕ‚aw MΔ…kosza; Andrzej Kwast πŸ“‚ Article πŸ“… 1998 πŸ› John Wiley and Sons 🌐 English βš– 220 KB πŸ‘ 2 views

Hydrogens located at activated positions in electrophilic arenes, e.g. ortho and para hydrogens in nitrobenzenes, can be replaced with a nucleophile moiety provided there is at least one nucleofuge X connected to the nucleophilic centre. As the group really leaving in this hydrogen substitution proc