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Recent advances in fullerene chemistry have provoked an ever burgeoning interest in bowl-like polycyclic aromatic hydrocarbons.1-4 The key step used in the synthesis of these compounds involves either a pyrolytic or a photocatalyzed pericyclic process. Various circulenes are prepared by these methods.* 1 More recently, the
The reactions of dithianes with W(CO)o in refluxing chlorobenzene give dimeric alkenes and their reduced products; fluorenone derivative yielding trimer 8. A radical mechanism is suggested. The structure of 8 has been determined by a single-crystal X-ray diffraction study. Crystal data: P2 t /n;a == 11.94& (5)
35(1)
terms-and-conditions-of-access.pdf This article may be used for research, teaching and private study purposes. Any substantial or systematic reproduction, re-distribution, re-selling, loan or sub-licensing, systematic supply or distribution in any form to anyone is expressly forbidden.The publisher does not give any warranty express or implied or make any representation that the contents will be complete or accurate or up to date. The accuracy of any instructions, formulae and drug doses should be independently verified with primary sources. The publisher shall not be liable for any loss, actions, claims, proceedings, demand or costs or damages whatsoever or howsoever caused arising directly or indirectly in connection with or arising out of the use of this material.
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