HETEROCYCLES

Heterocycles has a pay-per-view service for Non-subscribers.
You will be able to directly purchase the full text article through PayPal.
Your purchased Paper can be downloaded after the payment is completed.
An e-mail will be sent the URL to download the paper.
If you have any questions, please contact: purchase@heterocycles.com

Price: ¥ 4,400 (Yen only)
Period: This Article can be accessed for 7 days.

■ Preparation of p-Benzoquinono[b]oxepines and Their Aromatic Ring Annulated Derivatives

Naoki Kakusawa, Kiyohiro Inui, Jyoji Kurita, and Takashi Tsuchiya*

*School of Pharmacy, Hokuriku University, 3-Ho, Kanagawa machi, Kanazawa 920-1181, Japan

Abstract

Reaction of pyridazine N-oxides with 2,3-didehydrobenzoquinone resulted in the formation of the novel p-benzoquinono[b]oxepines, from which their aromatic ring annulated derivatives such as naphthoquinono-, anthraquinono-, 1-azanaphthoquinini-oxepines were prepared by Diels-Alder reactions.