Facile and Fast Pinacol Rearrangement by AlCl3 in the Solid State
作者:Parviz Rashidi-Ranjbar、Ebrahim Kianmehr
DOI:10.3390/60500442
日期:——
A facile and efficient synthetic procedure for effecting the pinacol rearrangement catalyzed by AlCl3 in the absence of solvent is developed. The rearrangement product is obtained at room temperature in a few minutes and in almost quantitative yield. Benzylic pinacols rearrange under these conditions, while aliphatic pinacols do not react.
A Different Route to the Synthesis of 9,10-Disubstituted Phenanthrenes
作者:Tomás C. Tempesti、Adriana B. Pierini、María T. Baumgartner
DOI:10.1021/jo050646f
日期:2005.8.1
We here report the synthesis of 10-aryl-9-hydroxy- and 10-aryl-9-aminophenanthrenes by reaction of the anions of 9-phenanthrol and 9-aminophenanthrene, respectively, with aryl halides (iodobenzene, 4-iodoanisole, 9-bromophenantrene). Good yields of 9,10-disubstituted phenanthrenes were obtained in these reactions (>75% and ∼50% for the 9-amino and 9-hydroxyphenanthrene rings, respectively). Extension
Advances in site-selective molecular editing have enabled structural modification on complex molecules.
位点选择性分子编辑技术的进步使复杂分子的结构得以改变。
Reaction of diphenylmethyl cations in a strong acid. Participation of carbodications with positive charge substantially delocalized over the aromatic rings