Rhodium‐Catalyzed Remote Borylation of Alkynes and Vinylboronates
作者:Minghao Zhang、Zheming Liu、Wanxiang Zhao
DOI:10.1002/anie.202215455
日期:2023.1.26
of internal alkynes and stericallyhindered tri- and tetra-substituted vinylboronates enabled by rhodium catalysis is reported. The 1,n-diboronate products can be converted to a variety of useful building blocks, biologically active molecules, and drugs via the selective manipulation of the two boryl groups in products including the regioselective cross coupling, oxidation, and amination.
β-halogenated enol esters and ethers are versatile building blocks in organic synthesis, which has attracted increasing attention. In this study, we report the facile trans-oxyiodination and oxychlorination of alkynes, leading to the direct construction of versatile halogenated enol esters and ethers. This transformation features an easy operation, optimal atomic economy, a strong functional group
Enantioselective <i>De Novo</i> Synthesis of α,α‐Diaryl Ketones from Alkynes
作者:Xueting Zhou、Qingqin Huang、Jiami Guo、Lei Dai、Yixin Lu
DOI:10.1002/anie.202310078
日期:2023.11.6
The enantioselective synthesis of α,α-diaryl ketonesfromalkynes through chiral phosphoric acid catalysis is demonstrated. This method also serves as an efficient deuteration method for the preparation of enantiomerically enriched α-deuterated α,α-diaryl ketones. Using the methodology, bioactive molecules, including one of the best-selling anti-breast cancer drugs, tamoxifen, are readily synthesized
Rhenium-catalyzed coupling reaction of alkynes with phenylacetaldehyde dimethylacetal in the presence of H2O regioselectively afforded the corresponding 1,2-disubstituted naphthalenes. (C) 2012 Elsevier Ltd. All rights reserved.
Rosa, Martha A. De la; Velarde, Esperanza; Guzman, Angel, Synthetic Communications, 1990, vol. 20, # 13, p. 2059 - 2064
作者:Rosa, Martha A. De la、Velarde, Esperanza、Guzman, Angel