European Journal of Organic Chemistry
Copyright © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
A Short-Step Synthesis of 1,6-Methanoannulene-3,4-dicarboximides and Their Benzene-, Naphthalene-, and Thiophene-Annulated Compounds (Eur. J. Org. Chem. 27/2014)
The cover picture shows a rapid stream in a valley of the Hirayu area in the Gifu Prefecture located in the middle of the Japanese mainland. The schemes show an improved one-pot reaction with phosphorane reagents, along the stream, and the previously reported multistep reactions from dicarbaldehydes to 1,6-methanoannulene-dicarboximides. The one-pot procedure was successfully applied to the synthesis of the arene-annulated 1,6-methanoannulenes. Details are discussed in the article by M. Oda et al. on p. 5976 ff. Even after the eminent achievements by the late Dr. E. Vogel, the field of 1,6-methanoannulene chemistry is still interesting and fertile. The authors thank Mr. Yoshimitsu Kumai in our laboratory for his great help in preparing this cover picture.