DIRECT FORMYLATION OF 9,9′-SPIROBIFLUORENE: 2-CARBOXALDEHYDE-9,9′-SPIROBIFLUORENE AND 2,2′-DICARBOXALDEHYDE-9,9′-SPIROBIFLUORENE
作者:Leonardo Mattiello、Giulia Fioravanti
DOI:10.1081/scc-100105391
日期:2001.1.1
The one-step formylations, using CH3OCHCl2/TiCl4 in CH2Cl2, of 9,9′-spirobifluorene to obtain 2-carboxaldehyde-9,9′-spirobifluorene and 2,2′-dicarboxaldehyde-9,9′-spirobifluorene in moderate to good yields are described. Previous works dealt with four-steps synthesis.
一步甲酰化,在 CH2Cl2 中使用 CH3OCHCl2/TiCl4,9,9'-螺二芴得到 2-甲醛-9,9'-螺二芴和 2,2'-二甲醛-9,9'-螺二芴描述了产量。以前的作品涉及四步合成。