Friedländer Synthesis of Chiral Alkyl-Substituted 1,10-Phenanthrolines
作者:Serafino Gladiali、Giorgio Chelucci、Maria Salvatora Mudadu、Marc-Antoine Gastaut、Randolph P. Thummel
DOI:10.1021/jo0009806
日期:2001.1.1
The synthetic scope of the Friedländer condensation in the preparation of chiral alkyl-substituted 1,10-phenanthrolines has been investigated. A range of chiral [x,y-b]-cycloalkeno-condensed phenanthrolines has been prepared in one step from steroidal or other cyclic ketones from the chiral pool and 8-amino-7-quinolinecarbaldehyde (1) via base-catalyzed condensation. Phenanthroline derivatives are
Sterically Hindered Phenanthrolines: Synthesis Of 1,7,7-Trimethyl[2.2.1]Bicycloheptano-[2,3-B]-L,10-Phenanthroline From (+)-Camphor
作者:Giorgio Chelucci、Randolph P. Thummel
DOI:10.1080/00397919908086152
日期:1999.5
Abstract The title compound was prepared in 51 % overall yield through a three step reaction sequence starting from 8-nitro-7-quinolinecarbaldehyde and (+)-camphor. This route offers a useful alternative to the Friedlander reaction which provides only a 5% yield of the title compound.