Synthesis of β-Hydroxynaphthoate Derivatives from Ketodioxinones via Benzyne Acyl-Alkylation and Aldol Condensation Cascade
作者:Hiroshi Takikawa、Arata Nishii、Keisuke Suzuki
DOI:10.1055/s-0035-1562514
日期:2016.10
functionalized β-hydroxynaphthoate derivatives are prepared by a two-step protocol: (1) acyl-alkylation of benzynes with ketodioxinones and (2) intramolecular aldol condensation. The substitution pattern of the products is related to polycyclic natural products derived from the type-II polyketide biosynthesis. A variety of highly functionalized β-hydroxynaphthoate derivatives are prepared by a two-step protocol:
致力于纪念Jean F. Normant教授 抽象的 通过两步操作方案可以制备多种高度官能化的β-羟基萘甲酸酯衍生物:(1)苯并炔酮与酮二恶英酮的酰基烷基化作用和(2)分子内醛醇缩合反应。产品的取代方式与源自II型聚酮化合物生物合成的多环天然产品有关。 通过两步操作方案可以制备多种高度官能化的β-羟基萘甲酸酯衍生物:(1)苯并炔酮与酮二恶英酮的酰基烷基化作用和(2)分子内醛醇缩合反应。产品的取代方式与源自II型聚酮化合物生物合成的多环天然产品有关。
Nucleophilic Partners in the Tandem Conjugate Addition−Dieckmann Condensation Reaction: 1. Synthesis of 1,2,3-Trisubstituted Naphthalenes
作者:Aaron D. Martinez、Jay P. Deville、Joel L. Stevens、Victor Behar
DOI:10.1021/jo035342c
日期:2004.2.1
The scope and limitations of the tandem conjugate addition−Dieckmann condensation for the construction of 1,2,3-trisubstituted naphthalenes is defined. Viable nucleophilic partners in this methodology include organocuprates, active methylenes, and a variety of heteroatom initiators.
De Novo Synthesis of Phenols and Naphthols through Oxidative Cycloaromatization of Dienynes
作者:Ming-Guang Rong、Tian-Zhu Qin、Xin-Rui Liu、Hong-Fa Wang、Weiwei Zi
DOI:10.1021/acs.orglett.8b02786
日期:2018.10.5
In this work, a rhodium-catalyzed oxidative cycloaromatization of dienynes, which provides a highly straightforward and efficient way to access polysubstituted naphthols and phenols under mild conditions, is described. Challenged electron-withdrawing groups are well tolerated in this protocol, and late-stage phenyl ring formation is demonstrated.