Proximity- and Chelation-Induced SNAr 1,4-Aromatic ortho-Substitution of ortho-Methoxyphenyl 2-Alkyl Ketones
作者:Stephen Hanessian、Gwendal Grelier、Etienne Chénard、Martin Büschleb
DOI:10.1055/s-0034-1379992
日期:——
Abstract The direct displacement of an o-methoxy group in o-methoxyaryl ketones with aryl, alkyl, and alkenyl Grignard reagents to provide a series of o-substituted ketones is described. Application of this reaction to the synthesis of a C-methyl analogue of a cyclooxygenase inhibitor is shown. The scope and limitations are discussed. The direct displacement of an o-methoxy group in o-methoxyaryl ketones
摘要 描述了用芳基,烷基和链烯基格氏试剂将邻甲氧基芳基酮中的邻甲氧基基团直接置换以提供一系列邻位取代的酮。显示了该反应在环加氧酶抑制剂的C-甲基类似物的合成中的应用。讨论了范围和限制。 描述了用芳基,烷基和链烯基格氏试剂将邻甲氧基芳基酮中的邻甲氧基基团直接置换以提供一系列邻位取代的酮。显示了该反应在环加氧酶抑制剂的C-甲基类似物的合成中的应用。讨论了范围和限制。