Substituted cyclopropanols via sequential cyclopropanation and oxidative hydrolysis of vinylboronates [0.03%]
通过乙烯基硼酸酯的连续环丙烷化和氧化水解制备取代环丙醇类化合物
Serhii I Shuvakin,Oleksii M Serhieiev,Maksym O Dashko et al.
Serhii I Shuvakin et al.
A scalable, diastereoselective protocol for synthesizing scarce 2-substituted cyclopropanols is presented. Our previous protocol for vinyl boron pinacolates cyclopropanation is adapted for flow conditions. This work establishes a fundamenta...
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...
Visible-Light-Induced Radical Hydroaroylation of Vinyl Boronic Ester with Aroyl Chlorides to Access β-Boryl Ketones [0.03%]
乙烯基硼酸酯与芳酰氯的可见光诱导自由基氢酰化制备β-硼基酮
Shuai Tang,Shuting Wang,Hua Zhang
Shuai Tang
A visible-light-induced radical hydroaroylation of vinyl boronic ester with aroyl chlorides has been developed, yielding a variety of β-boryl ketones in moderate to good yields with broad functional group tolerance. This metal-free transfo...
Diversifying fluoroalkanes: light-driven fluoroalkyl transfer via vinylboronate esters [0.03%]
氟烷基化合物的多样化：通过乙烯基硼酸酯实现光驱动的氟烷基转移反应
Kaushik Chakrabarti,Chandana Sunil,Benjamin M Farris et al.
Kaushik Chakrabarti et al.
We outline a new synthetic strategy to prepare tertiary difluoromethylene-containing molecules from fluoroalkane precursors and vinyl-pinacol boronic ester (vinyl-BPin) reagents. Under irradiation, fluoroalkyl(vinyl)pinacol boronate esters ...
Synthesis of (+)-Saxitoxin Facilitated by a Chiral Auxiliary for Photocycloadditions Involving Alkenylboronate Esters [0.03%]
手性辅助剂促进的烯基硼酸酯光环加成在合成(+)-石房哈毒素中的应用研究
Yang Jiao,Jiaqi Liu,Weijie Mao et al.
Yang Jiao et al.
(+)-Saxitoxin, a potent neurotoxin and NaV blocker, poses significant synthetic challenges due to its compact tricyclic framework and guanidinium moieties. We report a concise and asymmetric total synthesis featuring an intramolecular [2 + ...
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. ...
Strain-release enables access to carbonyl conjugated allylic diborons and alkenyl boronates having multiple contiguous stereocenters in a one-pot process [0.03%]
轴手性碳
Het Vyas,Ashvin J Gangani,Aiswarya Mini et al.
Het Vyas et al.
Allylic diboronates are highly valuable reagents in organic synthesis. Existing methods predominantly yield alkyl-substituted allylic diboronates, while the incorporation of electrophilic carbonyl groups conjugated to these allylic systems ...
Application of the LADA Strategy for the Synthesis of Styrylalanine through Photocatalytic Addition to Alkenylboronic Acids [0.03%]
LADA策略在茋基氨基酸合成中的应用：光催化硼酸加成反应
Xue Zhang,Yang Song,Ruining Li et al.
Xue Zhang et al.
Unnatural amino acids (UAAs) are highly valuable building blocks in organic synthesis, pharmaceuticals, and material sciences. Previously, we developed the LADA strategy for the synthesis of UAAs. Herein, we further expanded the scope of th...
Ligand-Free Iron-Catalyzed Carbonylation of Aryl Iodides with Alkenyl Boronic Acids: Access to α,β-Unsaturated Ketones [0.03%]
无配体铁催化芳基碘试剂与烯基硼酸的偶联反应合成α，β-不饱和酮化合物
Ning Xu,Junjie Chen,Kangkang Sun et al.
Ning Xu et al.
The application of earth-abundant and low-toxicity iron catalysts as replacements for palladium in carbonylative coupling reactions remains challenging and largely unexplored. Reported here is a highly efficient iron-catalyzed carbonylation...
Platinum-Catalyzed Diboration of Alkynes by 1,8-Diaminonaphthalene-Protected Diboronic Acid (B2(dan)2) [0.03%]
由均四氨基萘保护的二硼酸(B_2(DAN)_2)催化炔烃双官能团化反应生成乙烯基硼酸酯
Shinichi Saito,Yuya Koizumi,Yuki Ito et al.
Shinichi Saito et al.
The diboration of alkynes by 1,8-diaminonaphthalene-protected diboronic acid (B2(dan)2) proceeded smoothly in the presence of a platinum catalyst, and 1,2-diborylalkenes were isolated in up to 94% yield. The use of an appropriate solvent an...
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