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Reactions of 4-Chloro-9H-xanthene-9-thione with Tetrachloro-o-benzoquinone

✍ Scribed by Zeid, Ibrahim ;El-Sakka, Ibrahim ;Yassin, Salah ;Abass, Atif

Publisher
John Wiley and Sons
Year
1984
Tongue
English
Weight
176 KB
Volume
1984
Category
Article
ISSN
0947-3440

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✦ Synopsis

Reaktionen von 4‐Chlor‐9__H__‐xanthen‐9‐thion mit Tetrachlor‐O‐benzochinon

4‐Chlor‐9__H__‐xanthen‐9‐thion (1) reagiert mit Tetrachlor‐o‐benzochinon zu dem cyclischen Acetal 2. Zur Struktursicherung wurde 2 auf unabhängigen Wegen aus Tetrachlor‐o‐benzochinon und 4‐Chlor‐9‐diazo‐9__H__‐xanthen oder 4‐Chlor‐9__H__‐xanthen‐9‐on‐hydrazon sowie aus Tetrachlorbrenzcatechin und 4,9,9‐Trichlor‐9__H__‐xanthen synthetisiert. Die Spaltung der Acetalgruppe in 2 mit Salzsäure, Malononitril, Cyanessigsäure‐ethylester und Hydrazinhydrat wurde studiert.

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