Visible-Light-Promoted Catalytic Redox-Neutral Alkynylation of Alkyl Boronic Acids/Boronates [0.03%]
可见光促进的烷基硼酸/硼酸酯与烯炔的氧化还原惰性烷ynylation反应
Amit Behera,Akash Bisoyi,Veera Reddy Yatham
Amit Behera
We present a catalytic, redox-neutral strategy for producing internal alkynes through the cross-coupling of alkyl boronic acids and boronates with (hetero)aryl acetylenic bromides. This method proceeds under mild conditions, requires no met...
Enantioselective Alkyne-Mediated Aldehyde Allylation of Alcohol Proelectrophiles Using RuHCl(CO)(PPh3)3 as Precatalyst [0.03%]
RuHCl(CO)(PPh3)3催化的醇亚胺与叠氮
Madeline M Evarts,Thien-Quang N Nguyen,Michael J Krische
Madeline M Evarts
The catalyst assembled from inexpensive RuHCl(CO)(PPh3)3, JOSIPHOS (SL-J009-1), and either NaI or KI affects anti-diastereo- and enantioselective alkyne-mediated allylation of alcohol proelectrophiles via hydrogen autotransfer. This protoco...
Correction to "Synthesis and Stability Studies of a Simplified, Thiazole-Containing Macrocycle of the Anticancer Agent Salarin C" [0.03%]
“有关简化的抗癌剂Salarin C的噻唑环含宏环化合物的合成与稳定性研究”的勘误通知书
Matthew R Parris,Roxane M Jourdain,Alejandro Valderrama-Celestino et al.
Matthew R Parris et al.
Published Erratum
Organic letters. 2025 Dec 18. DOI:10.1021/acs.orglett.5c03818 2025
Fe(III)-Catalyzed Highly Efficient Oxidative Cross-Coupling of 2-Naphthols and 2,6-Dihydroxynaphthalene with Furans [0.03%]
菲(III)催化2-萘酚和2,6-二羟基萘与呋喃的高效氧化交叉偶联反应
Shon Gangai,Dipti Naik,Deepak Datta Gaonkar et al.
Shon Gangai et al.
Catalytic oxidative cross-coupling has emerged as a vital tool for C-C bond formation. Herein, we disclose a hitherto unknown highly efficient catalytic oxidative cross-coupling of furans with 2-naphthols and 2,6-dihydroxynaphthalene using ...
Switchable Access to Quinolines and Isoquinolines via the Diverse Behavior of Transient Directing Groups [0.03%]
通过瞬时导向基元的多种行为切换获得喹啉和异喹啉类化合物
Xianwen Zeng,Wen Fu,Xiaoxiao Huang et al.
Xianwen Zeng et al.
A hydroxylamine-O-sulfonic acid (HOSA)-enabled, switchable C-H functionalization/annulation of acetophenones with α,β-unsaturated ketones is disclosed, providing a tunable one-pot route to either quinoline or isoquinoline derivatives. The...
Ph3N as an Organocatalytic Donor for Photoactivation of Pyridinium-Masked Enols in the Formal [4 + 2] Cycloaddition with Unactivated Olefins [0.03%]
三苯基膦作为光活化吡啶亚胺烯醇的 organocatalytic 施 donor 受体参加未活化的烯烃参与的[4+2]环加成反应
Jin Li,Zhaoyu Ji,Haiming Wang et al.
Jin Li et al.
Herein, we demonstrated that commercially available and inexpensive triphenylamine (NPh3) could act as an electron donor to form electron donor-acceptor (EDA) complexes with pyridinium-masked enols. Upon irradiation with blue light (455 nm)...
Asymmetric Olefin Cyclopropanation Catalyzed by Pincer Ruthenium Complexes [0.03%]
手性pincer钌催化剂的不对称烯烃环丙烷化反应
Shunlong He,Bolong Chai,Lan Gan et al.
Shunlong He et al.
We report the development of a class of chiral pincer ruthenium (PCNOx)Ru complexes bearing oxazoline-based PCNOx ligands for the asymmetric cyclopropanation of olefins with α-diazo carbonyl compounds. These catalysts exhibit high reactivi...
Riley A Roberts,Paige Herkemij,Haripriya Damle et al.
Riley A Roberts et al.
Aryl thianthrenium salts are versatile reagents for organic synthesis, yet access to these compounds is generally limited to aryl rings bearing electron-donating groups. Here, we describe a method to synthesize a wide range of aryl thianthr...
Unsymmetrical Dipolar Regulation of Tetrazine Cycloaddition to C60: Modulating the Reactivity and Switching Site Selectivity on the 1,4-C60 Adducts [0.03%]
不对称偶极调控四嗪与C60环加成反应：调节1,4-C60加合物的反应活性及切换位点选择性
Zi-Zheng Liu,Xiao-Hui Wen,Hong-Chang Fan et al.
Zi-Zheng Liu et al.
Herein, we report that 1,4-unsymmetric modification of the fullerene core can tune the site selectivity and reactivity of C60. An unconventional hydrated 4,5-dihydropyridazine ring structure was formed due to the site-selective 1,2,4,5-tetr...
Photochemical Radical Ring-Opening Alkylation of Cyclopropanols with Katritzky Salts [0.03%]
卡特里茨基盐与环丙醇的光化学自由基开环烷基化反应
Ulada Karotsina,Kirill Stasko,Vitaly Syakhovich et al.
Ulada Karotsina et al.
Ring-cleavage reactions of cyclopropyl alcohols are a valuable tool for the synthesis of linear and α- or β-branched ketones. Here, we describe a visible light-induced ring-opening alkylation of these substrates with benzyl, allyl, and se...