Transition-Metal-Free Alkylative Aromatization of Tetralone Using Alcohol/Amino Alcohol towards the Synthesis of Bioactive Naphthol and Benzo[<i>e</i>/<i>g</i>]indole Derivatives
作者:Akash S. Ubale、Gokul S. Londhe、Moseen A. Shaikh、Boopathy Gnanaprakasam
DOI:10.1021/acs.joc.2c00779
日期:2022.6.17
Herein, we report alkylative aromatization of tetralone for the synthesis of bioactive naphthols and benzo[e/g]indole derivatives using alcohols in the presence of NaOH via an aerobic oxidative cross-coupling protocol. This is a general and transition-metal-free method, which uses an inexpensive base, avoids inert conditions, and furnishes water and hydrogen peroxide as the byproducts. Moreover, this
在此,我们报告了四氢萘酮的烷基芳构化,用于在NaOH 存在下通过需氧氧化交叉偶联方案使用醇合成生物活性萘酚和苯并[ e / g ]吲哚衍生物。这是一种通用且不含过渡金属的方法,它使用廉价的碱,避免惰性条件,并提供水和过氧化氢作为副产品。此外,该方法具有广泛的底物范围,并获得了独有的区域选择性。
Nickel-Catalyzed Reductive Cross-Coupling of Aryl Triflates and Nonaflates with Alkyl Iodides
作者:Yuto Sumida、Takamitsu Hosoya、Tomoe Sumida
DOI:10.1055/s-0036-1588464
日期:2017.8
coupling of aryl triflates and nonaflates with alkyliodides using manganese(0) as a reductant is described. The method is applicable to the reductive alkylation of various aryl sulfonates, including o-borylaryl triflate, which enabled efficient construction of diverse alkylated arenes under mild conditions. A nickel-catalyzed cross-electrophile coupling of aryl triflates and nonaflates with alkyl iodides
Development of ProPhenol/Ti(IV) Catalyst for Asymmetric Hydroxylative Dearomatization of Naphthols
作者:Lutao Bai、Linqing Wang、Haiyong Zhu、Shiming Pang、Shixin Li、Jiaming Lv、Hailong Zhang、Dongxu Yang
DOI:10.1021/acs.orglett.3c00077
日期:2023.2.10
By development of ProPhenol/Ti(IV) catalysts, a catalytic enantioselective hydroxylativedearomatization of naphthols is achieved by using TBHP as a simple oxidative reagent. The side coordinative chain equipped on the C1-position of β-naphthols plays an important role for initiating this asymmetric hydroxylative reaction, which might be a result of the proper cocoordination effects to the titanium