作者:Alexandru C. Razus、Carmen Nitu、Victorita Tecuceanu、Valentin Cimpeanu
DOI:10.1002/ejoc.200300346
日期:2003.12
An easy and efficient solvent-free synthesis of 1-(azulen-1-yl)-2-aryl- and heteroarylethenes is described. The reaction was performed simply by melting solid mixtures of azulenic Schiff bases and arylacetic acids, the crude products being purified by column chromatography. Limitations of the method were established by study of a large range of aryl and heteroarylacetic acids and also by examination
Fulvene Dialdehyde Strategy for <i>adj</i>-Dicarbaporphyrinoid Synthesis: Preparation of a 22-Carbaazuliporphyrin
作者:Timothy D. Lash、Denise A. Colby、Aparna S. Idate、Randall N. Davis
DOI:10.1021/ja076414a
日期:2007.11.1
Aromatic aldehydes, including azulenecarbaldehydes, have been shown to react with an indene enamine derivative in the presence of dibutylboron triflate to give stable fulvene aldehydes. 1,3-Azulenedicarbaldehyde afforded a fulvene dialdehyde under these conditions, and this reacted with a dipyrrylmethane to give a 22-carbaazuliporphyrin. This adj-dicarbaporphyrinoid showed significant diatropic character