A Mild Anionic Method for Generating <i>o-</i>Quinone Methides: Facile Preparations of <i>Ortho</i>-Functionalized Phenols
作者:Ryan M. Jones、Ryan W. Van De Water、Christopher C. Lindsey、Christophe Hoarau、Thay Ung、Thomas R. R. Pettus
DOI:10.1021/jo001752e
日期:2001.5.1
A low-temperature method for generating o-quinone methides is described which permits facile introduction of assorted R substituents onto the aryl ring system at low temperature. The method is useful for the efficient preparation of ortho-ring-alkylated phenols.
Synthesis of Naturally Racemic Marilines B & C through Multicomponent Reactions Involving ortho-Quinone Methides and Various Nitrogen Nucleophiles
作者:Thomas R. R. Pettus、Yuk Fai Wong
DOI:10.1055/s-0041-1738443
日期:2023.10
the first total synthesis of (±)-marilines B and C, as well as a failed approach to (±)-mariline A, by using our recently developed multicomponent reaction method, which involves the interception of ortho-quinone methides with various nitrogennucleophiles to allow easy assembly of various benzylic amine cores with diverse substituents.
在此,我们报告了 (±)-marilines B 和 C 的首次全合成,以及 (±)-mariline A 的失败方法,通过使用我们最近开发的多组分反应方法,其中涉及邻醌甲基化物的拦截与各种氮亲核试剂一起,可以轻松组装具有不同取代基的各种苄胺核心。
Nucleophilic Addition of 4,5-Dihydrooxazole Derivatives to Base Generated <i>o</i>-Quinone Methides: A Four-Component Reaction
作者:Yuk Fai Wong、Ivan Hernandez、Thomas R. R. Pettus
DOI:10.1021/acs.joc.2c02614
日期:2023.2.17
A novel method for joining four components together in a single pot leading to an assortment of N-amino-benzylated phenols is described. The method involves the addition of different Grignard reagents to various o-OBoc salicylaldehydes in the presence of assorted 4,5-dihydrooxazoles, followed by aqueous workup. Seventeen examples are presented with varied (-R, -R′ -R″, -R‴, -R⁗, and Cn) substituents