作者:Stephen J. Bentley、David J. Milner
DOI:10.1016/0022-328x(93)80265-d
日期:1993.3
Nitrobenzenes bearing masked aldehyde, ketone and ketoester functions at the 4-position undergo conjugate addition with Grignard reagents in THF at − 15°C. Sequential treatment of the 4-substituted nitrobenzenes with primary or secondary alkyl magnesium halides followed by 2,3-dichloro-5,6-dicyano-1,4-benzoquinone affords the corresponding 2-alkylated derivatives in 50–80% yields.
在− 15°C下,于4-位带有掩蔽醛,酮和酮酸酯功能的硝基苯与格氏试剂共轭加成。依次用伯或仲烷基镁卤化物依次处理4-取代的硝基苯,然后用2,3-二氯-5,6-二氰基-1,4-苯醌进行处理,可以得到相应的2-烷基化衍生物,收率为50-80%。