The Journal of organic chemistry

Tumor Inhibitors. X. 1 Photochemical Synthesis of Phenanthrenes. Synthesis of Aristolochic Acid and Related Compounds2-4

SM Kupchan, HC Wormser

Index: Kupchan,S.M.; Wormser,H.C. Journal of Organic Chemistry, 1965 , vol. 30, p. 3792 - 3800

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Citation Number: 74

Abstract

R= H, in cyclohexane for 3 hr. at room temperature, with a Nester-Faust NFUV-300 ultraviolet source, afforded phenanthrene (XI, R= H), in 90% yield. The progress of the reaction was followed by ultraviolet spectral analysis after appropriate time intervals. Similarly, 2-methyl-2'-iodo-cis-stilbene (X, R= CH,), photolyzed for 4 hr., afforded XI, R= CH,, in 96% yield, melting point undepressed upon admixture with an authentic sample ...