Post-Synthetic Modification of Zr-Metal-Organic Frameworks through Cycloaddition Reactions
作者:Pascal Roy、Andreas Schaate、Peter Behrens、Adelheid Godt
DOI:10.1002/chem.201103288
日期:2012.5.29
98 % conversion of the ethyne groups. Reactions of PIZOF(OMe,O(CH2)3furan) with maleimide, N‐methylmaleimide, and N‐phenylmaleimide converted 98, 99, and 89 % of the furan moieties into the Diels–Alder adducts. However, no reaction occurred with maleic anhydride. High‐resolution 1H NMR spectra were crucial in determining the conversion and identifying the reaction products. Of all the reagents (NaOD/D2O
环加成反应对于金属有机骨架(MOF)的合成后修饰非常有吸引力。我们在此与PIZOF(R环加成反应报告1,R 2)s,它是多孔的互穿Zr类的MOF与Zr的6 ö 4(OH)4(CO 2)12作为节点,所述二羧酸- ö 2 C [ PE-P(R 1,R 2)-EP] CO 2 -(P:亚苯基,E:亚乙炔基; R 1,R 2:中央亚苯基单元的侧链)作为连接基。PIZOF的乙炔侧基部分之间的1,3-偶极环加成(OME,OCH 2 CCH)和4-甲基苄基叠氮化物导致乙炔基团的98%的转化。PIZOF(OMe,O(CH 2)3呋喃)与马来酰亚胺,N-甲基马来酰亚胺和N-苯基马来酰亚胺的反应将98%,99%和89%的呋喃部分转化为Diels-Alder加合物。但是,与马来酸酐没有反应发生。高分辨率1 H NMR光谱对于确定转化率和确定反应产物至关重要。在所有试剂中(NaOD / D 2 O,D 2 SO