The present invention relates generally to methods and compositions comprising macrocycles. In some embodiments, the present invention provides methods for modifying macrocycles comprising a pendant group. In some cases, the pendent group comprises a hydrolyzable group. The present invention also provides methods for metallating a macrocycle using microwave energy, in some embodiments.
[EN] METHODS AND COMPOSITIONS COMPRISING MACROCYCLES<br/>[FR] PROCÉDÉS ET COMPOSITIONS COMPRENANT DES MACROCYCLES
申请人:MASSACHUSETTS INST TECHNOLOGY
公开号:WO2011081651A1
公开(公告)日:2011-07-07
The present invention relates generally to methods and compositions comprising macrocycles. In some embodiments, the present invention provides methods for modifying macrocycles comprising a pendant group. In some cases, the pendent group comprises a hydrolyzable group. The present invention also provides methods for metallating a macrocycle using microwave energy, in some embodiments.
Strong electron acceptor properties of 3′(pentafluorophenyl)isoxazolo[4′,5′:1,2][60]fullerene derivatives
作者:Hermann Irngartinger、Thomas Escher
DOI:10.1016/s0040-4020(99)00607-9
日期:1999.8
Investigations on the synthesis and electrochemical behaviour of a new class of acceptor substituted isoxazolofullerenes is described. The influence of distance and orientation of pentafluorophenyl substituents on cyclic voltammetry is discussed. The strong acceptor effect of 1c could be due to a through space interaction of a pentafluoro-phenyl substituent with the [60]fullerene surface.
We developed a Pd-catalyzeddecarboxylativecross-coupling of zinc polyfluorobenzoates, which were used as precursors for producing zinc reagents in situ, with aryl bromides and nonaflates, providing a mild and efficient pathway for the synthesis of polyfluorinated biaryls. This protocol exhibits a broad substrate scope and excellent functional tolerance. Moreover, the versatility of this approach