A Facile Synthesis of 2H-Chromenes and 9-Functionalized Phenanthrenes through Reactions between α,β-Unsaturated Compounds and Arynes
作者:Tiexin Zhang、Xian Huang、and Luling Wu
DOI:10.1002/ejoc.201200042
日期:2012.6
Facile syntheses of 2H-chromenes or 9-functionalizedphenanthrenes under mild conditions in moderate to good yields have been developed. They each involve annulations of arynes with α,β-unsaturatedcompounds bearing different electron-withdrawing groups (EWGs). Depending on the natures of the different EWGs, the reactions proceed by different pathways: enals react with arynesthrough a tandem [2+2]
Studies in the Phenanthrene Series. VII. 3-Hydroxyacetylphenanthrenes and Amino Ketones and Alcohols Derived from Them. Hydroxyaminophenanthrenes<sup>1</sup>
作者:Alfred Burger、Erich Mosettig
DOI:10.1021/ja01323a028
日期:1934.8
ATTEMPTS TO FIND NEW ANTIMALARIALS. III.<sup>1,2</sup> AMINO ALCOHOLS DERIVED FROM 3-METHOXYPHENANTHRENE
作者:EVERETTE L. MAY、ERICH MOSETTIG
DOI:10.1021/jo01171a003
日期:1946.1
Studies in the Phenanthrene Series. III. Hydroxy Aldehydes and Hydroxy Ketones<sup>1</sup>
作者:Erich Mosettig、Alfred Burger
DOI:10.1021/ja01334a062
日期:1933.7
Biphenyl Cyclobutenone Photoelectrocyclizations
作者:Changhang Dai、Xuchen Zhao、Changqing Song、Zach Schwartz、Jon D. Rainier
DOI:10.1021/acs.joc.1c01809
日期:2021.11.5
In this work, we demonstrate that readily available conjugated bis-aryl cyclobutenones undergo photoelectrocyclization reactions to give the corresponding dihydrophenanthrene cyclobutanones when exposed to 350 nm light, TFA, and TMSCl. We have also found that cyclobutenone electrocyclizations and cycloreversions are in equilibrium.