Highly Efficient Suzuki-Miyaura Polymerization Enabled by Direct Transmetalation with Boronic Esters [0.03%]
直接利用硼酸酯进行转金属化催化的高效Suzuki-Miyaura聚合反应
Haigen Xiong,Yu Lu,Qijie Lin et al.
Haigen Xiong et al.
Experimental and theoretical investigations revealed that direct transmetalation of boronic esters without prior conversion to more reactive intermediates plays a critical role in this protocol, thus avoiding the problematic deboronation associated with unstable boronic acids.
Cu-Catalyzed Asymmetric Olefinative Conjugate Addition of Aryl and Alkenyl Boronic Esters [0.03%]
铜催化不对称烯基亲核加成反应构建手性α,β-不饱和酮类化合物
Francesco Vaghi,Piero Soppelsa,Klaus Wurst et al.
Francesco Vaghi et al.
Here, this strategy is extended by the implementation of aryl and alkenyl boronic esters as C(sp2) nucleophiles, thus notably expanding the range of accessible products by the AOCA.
Ethyl Pinacol Boronates as Advantageous Precursors for Copper-Mediated Radiofluorination [0.03%]
用于铜介导放射氟化的乙基二甲基硅烷硼酸酯的优势前体
Nikolaos Hadjipaschalis,Sebastiano Ortalli,Zijun Chen et al.
Nikolaos Hadjipaschalis et al.
(Hetero)aryl pinacol boronic esters are routinely used for 18F-labeling and have accelerated numerous diagnostic and drug discovery programs. An analysis of the current state-of-play, however, highlights a pending challenge....Reports have indicated that some pinacol boronic esters are unstable and difficult to purify, hindering broader adoption in the clinic. Herein, we demonstrate that more stable boronic esters derived from 3,4-diethylhexane-3,4-diol (Epin) are highly suitable for copper-mediated radiolabeling.
Tingting Feng,Tony Biremond,Philippe Jubault et al.
Tingting Feng et al.
Allenyl silanes and boronates are pivotal building blocks in organic synthesis. Nevertheless, their synthesis requires the manipulation of transition metal or highly reactive species. Hence, the development of more sustainable protocol is h...
Decoupling of Bonding Strength and Water Retention in Aqueous Wood Adhesive Inspired by Plant Cell [0.03%]
受植物细胞启发的木质素基胶黏剂中粘结强度与保水性解耦关系的研究
Shiqing Chen,Qihang Wang,Jiawei Shao et al.
Shiqing Chen et al.
Inspired by the water retention and mechanical support in plant cell, we develop a multifunctional biomass soybean meal (SM) adhesive by combining the rigid internal boron-nitrogen coordinated boronic esters structure for reinforcement with the flexible zwitterionic polymer for water retention.
Ipso-Nitration of Boronic Esters Enabled by Ferric Nitrate Nonahydrate (Fe(NO3)3·9H2O) in HFIP [0.03%]
九水硝酸铁(Fe(NO3)3·9H2O)促进的HFIP中的硼酸酯的硝化反应
Yuzhu Zheng,Zongyi Liu,Qing Huang et al.
Yuzhu Zheng et al.
We describe in this work an operationally facile and generally applicable ipso-nitration of boronic esters by Fe(NO3)3·9H2O in hexafluoroisopropanol (HFIP), allowing us fast access to various nitroarenes that are currently difficult to obtain via traditional electrophilic C-H nitrations.
Chang Lian,Jianning Zhang,Lei Zhang et al.
Chang Lian et al.
By employing an enamine and a photocatalyst under light irradiation, aldehydes can be transformed effectively into alkyl boronic esters via a formal decarbonylative process.
Synthesis of α-Chloroboronic Esters via Photoredox-Catalyzed Chloro-Alkoxycarbonylation of Vinyl Boronic Esters [0.03%]
通过光氧化还原催化氯烷氧羰基化合成α-氯硼酸酯
Wen-Duo Li,Na-Na Wei,Nan Feng et al.
Wen-Duo Li et al.
α-Chloroboronic esters are a class of stable multifunctional molecules that show unique applications in pharmaceutical science and organic chemistry. Despite their apparent utility, the synthetic methods of these compounds remain limited. ...
Iridium-Catalyzed Stereocontrolled C(sp3)-C(sp3) Cross-Coupling of Boronic Esters and Allylic Carbonates Enabled by Boron-to-Zinc Transmetalation [0.03%]
由硼到锌的金属交换实现的铱催化伯碳-叔碳立体选择性交叉偶联反应
Hong-Cheng Shen,Varinder K Aggarwal
Hong-Cheng Shen
The stereocontrolled C(sp3)-C(sp3) cross-coupling represents a considerable challenge of great contemporary interest. While this has been achieved through the reactions of boronate complexes with π-allyl iridium complexes, such reactions s...
Merging Copper Catalysis with Nitro Allyl and Allyl Sulfone Derivatives: Practical, Straightforward, and Scalable Synthesis of Diversely Functionalized Allyl Boranes [0.03%]
铜催化与硝基亚基和亚基砜衍生物的结合：多功能化亚基硼烷的实用，简便和可放大的合成方法
Nicolas Fincias,Louis Clavier,Cora Escande de Messières et al.
Nicolas Fincias et al.
This new reactivity was further exploited to synthesize γ-fluoroallyl boronic esters as well as various synthetically useful building blocks through key post-functionalizations. Both the reaction mechanism and the chemoselectivity were rationalized experimentally and through DFT calculations.
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