1,4,6-Trimethylanthracene and 1,4,6-trimethylfluorene. N.m.r. spectra of methylfluorenes
作者:William Carruthers、David Whitmarsh
DOI:10.1039/p19730001511
日期:——
The syntheses of 1,4,6-trimethylanthracene and 1,4,6-trimethylfluorene are described. N.m.r. spectroscopy has only limited use for locating the substituents in methylfluorenes. since the 1-, 2-, and 3-methyl protons have similar chemical shifts; the signal due to a 4-methyl substituent is at lower field.
描述了1,4,6-三甲基蒽和1,4,6-三甲基芴的合成。Nmr光谱法仅用于限定甲基芴中的取代基。因为1-,2-和3-甲基质子具有相似的化学位移;由4-甲基取代基引起的信号在较低的场。