Macro Rings. XXXIII. A 1, 6 to 1, 6 Cycloaddition Reaction, a Diels-Alder Insertion Reaction, and Bent Benzene Rings1, 2

DJ Cram, CS Montgomery, GR Knox

Index: Cram,D.J. et al. Journal of the American Chemical Society, 1966 , vol. 88, # 3 p. 515 - 525

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Citation Number: 80

Abstract

Abstract: The two tetraenes, p-xylylene (I) and its furan analog (11), when generated in the presence of one another, underwent 1, 6 to 1, 6 cycloaddition reactions to give the monofuran analog (111) of [2.2] paracyclophane as the major product, and [2.2] paracyclophane (IV) and its difuran analog (V) as minor products. The monofuran analog (111), when allowed to stand in hexane in the sunlight in contact with air, slowly produced ...