Synthesis of Chiral C<sub>2</sub>-Symmetric 1,10-Phenanthrolines from Naturally Occurring Monoterpenes
作者:Giorgio Chelucci、Giovanni Loriga、Gabriele Murineddu、Gerard A. Pinna
DOI:10.1055/s-2003-36260
日期:——
A convenient procedure for the preparation of chiral C2 -symmetric 1,10-phenanthrolines bearing a chiral framework in the form of a cycloalkeno-condensed substituent in the 2,3-and 8,9-positions of the heterocycle is reported. Starting from the 2-benzyloxycyclohexanone, four 1,10-phenanihrolines derived from (-)-β-pinene, (+)-α-pinene, (-)-isopinocampheol, and (+)-camphor were prepared according to