Application of Azomethine Ylides in the Synthesis of Carbohydrate-Derived Spiroheterocycles
作者:Asish Banerjee、Piyali Barman、Ishita Sanyal、Sukhendu Mandal
DOI:10.1055/s-0030-1260226
日期:2011.11
heterocycles were synthesized through a unique application of a 1,3-dipolar cycloaddition reaction of an azomethine ylide with a carbohydrate-derived olefin. The 1,3-dipoles synthesized from secondary α-amino acids (sarcosine, proline, or pipecolinic acid) and 1,2-diketones (isatin or acenaphthoquinone), upon reaction with the olefin, gave the corresponding cycloaddition products in good-to-very good yields
通过偶氮甲亚胺叶立德与碳水化合物衍生的烯烃的1,3-偶极环加成反应的独特应用,合成了一系列糖融合的螺-吡咯并吡啶,-吡咯并吡啶和-吲哚并嗪杂环。在与烯烃反应后,由仲α-氨基酸(肌氨酸,脯氨酸或胡椒碱)和1,2-二酮(靛红或醌)合成的1,3-偶极化合物,可得到相应的环加成产物很好的产量。 杂环-螺化合物-碳水化合物-酰化物-环加成