ISSN:
0009-2940
Keywords:
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Protophanes and Polyaromatics, XXVI. Synthesis and Properties of Dehydrooligomers of 2-(3-Thienyl)- and 2-(Benzo[b]thien-3-yl)quinoxalineMonolithiated 2-(3-thienyl)- (1a′) and 2-(benzo[b]thien-3-yl)quinoxaline (2a′) react in each case by selfaddition to polyadducts from which polyaromatics can be prepared by hydrolysis and subsequent oxidation. From the reaction mixtures open-chain polyaromatics with 4 to 12 aromatic units (1b-f, 2b-d) were isolated. Starting from 2a′, in addition to open-chain polyaromatics the cyclotetraaromatic 7 has been obtained in low yield.
Notes:
Monolithiiertes 2-(3-Thienyl)- (1a′) und 2-(Benzo[b]thien-3-yl)chinoxalin (2a′) reagieren jeweils durch Selbstaddition zu Polyaddukten, aus denen durch Hydrolyse und anschließende Oxidation Polyaromaten entstehen. Aus den Reaktionsgemischen konnten offenkettige Polyaromaten mit 4-12 Aromateneinheiten (1b-f, 2b-d) isoliert werden. Aus 2a′ entstand zusätzlich zu den offenkettigen Polyaromaten in geringer Ausbeute der Cyclotetraaromat 7.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19821150516
