The ferrocenyl analogue of clotrimazole, in which the metallocene fragment replaces one of the phenyl rings in the triphenylmethane system, and a related isomer were prepared through the direct substitution of a methoxygroup in the α-position to ferrocene with imidazole in the key step. The obtained ferrocenyl derivatives were spectroscopically characterized and in a preliminary assay for bioactivity
作者:George I. Poos、Margaret M. Lehman、Elizabeth B. Landis、Janet D. Rosenau
DOI:10.1021/jm01240a001
日期:1962.9.1
Electronic substituent effects on the EPR-spectral D parameter of trimethylenemethane (TMM) triplet diradicals compared with localized cyclopentane-1,3-diyls
作者:Manabu Abe、Waldemar Adam
DOI:10.1039/a708236c
日期:——
The EPR-spectral Dparameter for a series of aryl-substituted trimethylenemethane (TMM) derivatives 2a–g has been determined in a 2-methyltetrahydrofuran (MTHF) matrix at 77 K. Although the substituent effects on the Dparameter are relatively small compared with those of the localized 1,3-diradicals 4, the good correlation between the D values of TMMs 2 and those established for 4 signifies that electronic