Journal of the American Chemical Society

An Unusual Cyclization in the Naphthalene Series. Synthesis of 1-Ethylanthracene and of 4-Ethylphenanthrene

H Bendas, C Djerassi

文献索引：Bendas; Djerassi Journal of the American Chemical Society, 1956 , vol. 78, p. 2474

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被引用次数: 7

摘要

At an early stage of our examination2 of the dehydrogenation products of the diterpene cafestol, it was desirable to have available for comparison purposes all of the possible ethylphenanthrenes and the synthesis of the missing isomer-4-ethylphenanthrene-was consequently undertaken. The most obvious approach involved reaction of 4-keto-l12, 3, 4- tetrahydrophenanthrene (I) with ethylmagnesium iodide followed by dehydration and ...