Synthesis of natural quinazolinones and some of their analogues through radical cascade reactions involving N-acylcyanamides
作者:Marie-Hélène Larraufie、Max Malacria、Christine Courillon、Cyril Ollivier、Louis Fensterbank、Emmanuel Lacôte
DOI:10.1016/j.tet.2013.05.058
日期:2013.9
can be prepared from the cascade cyclizations of alkyl-substituted N-acylcyanamide radicals, including 5-exo-dig or 6-exo-dig cyclizations onto the cyano group, followed by radical arylations of the resulting amidyl radicals. The fact that one can carry out the cascades from alkyl radicals in addition to aryl, vinyl and aminyl ones, shows the versatility of the method to rapidly access nitrogen-containing
可以从烷基取代的N-酰基氰酰胺自由基的级联环化反应制备两个天然的喹唑啉酮和两个类似物,包括将5- exo - dig或6- exo - dig环化到氰基上,然后将所得的酰胺基自由基进行芳基化。除芳基,乙烯基和氨基基之外,还可以由烷基进行级联的事实表明,该方法具有多功能性,可以快速进入含氮多环结构。