Cover Picture: Enantioselective Copper‐Catalyzed Three‐Component Carboboronation of Allenes: Access to Functionalized Dibenzo [b,f][1,4]oxazepine Derivatives (Adv. Synth. Catal. 15/2019)

The inside cover picture, designed by Cheng Zhang and co‐workers, illustrates the three‐component carboboronation of allenes. In the presence of a chiral copper complex that was formed in situ from CuCl and a chiral P,N‐ or P,P‐ligand, the bis(pinacolato)diboron, allenes, and dibenzo[b,f][1,4]oxazep...

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Published inAdvanced synthesis & catalysis Vol. 361; no. 15; p. 3452
Main Authors Deng, Hao, Meng, Ziwei, Wang, Sifan, Zhang, Zheming, Zhang, Yaqi, Shangguan, Yu, Yang, Fazhou, Yuan, Dekai, Guo, Hongchao, Zhang, Cheng
Format Journal Article
LanguageEnglish
Published 05.08.2019
Subjects
asymmetric catalysis
boron
copper-catalyzed
cross-coupling
difunctionalization of allenes
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Summary:The inside cover picture, designed by Cheng Zhang and co‐workers, illustrates the three‐component carboboronation of allenes. In the presence of a chiral copper complex that was formed in situ from CuCl and a chiral P,N‐ or P,P‐ligand, the bis(pinacolato)diboron, allenes, and dibenzo[b,f][1,4]oxazepines undergo a three‐component cascade reaction to afford chiral dibenzo[b,f][1,4]oxazepine derivatives in good yields and high stereoselectivities, and the reaction exhibits reversed diastereoselectivities when the chiral P,N‐ligand and the chiral P,P‐ligand are switched. Details of this work can be found in the Update on pages 3582–3587 (H. Deng, Z. Meng, S. Wang, Z. Zhang, Y. Zhang, Y. Shangguan, F. Yang, D. Yuan, H. Guo, C. Zhang, Adv. Synth. Catal. 2019, 361, 3582–3587; DOI: 10.1002/adsc.201900503).
ISSN:1615-4150
1615-4169
DOI:10.1002/adsc.201900787