Electrochemical Borylation of Alkyl Halides: Fast, Scalable Access to Alkyl Boronic Esters
作者:Bingbing Wang、Pan Peng、Wan Ma、Zhao Liu、Cheng Huang、Yangmin Cao、Ping Hu、Xiaotian Qi、Qingquan Lu
DOI:10.1021/jacs.1c06473
日期:2021.8.25
Herein, a fast, scalable, and transition-metal-free borylation of alkyl halides (X = I, Br, Cl) enabled by electroreduction is reported. This process provides an efficient and practical access to primary, secondary, and tertiary boronic esters at a high current. More than 70 examples, including the late-stage borylation of natural products and drug derivatives, are furnished at room temperature, thereby
[EN] SYNTHETIC PEPTIDE AMIDE COMPOUND AND ITS USE IN THE FIELD OF MEDICINE<br/>[FR] COMPOSÉ AMIDE DE PEPTIDE SYNTHÉTIQUE ET SON UTILISATION DANS LE DOMAINE DE LA MÉDECINE
申请人:CHENGDU SINTANOVO BIOTECHNOLOGY CO LTD
公开号:WO2021197283A1
公开(公告)日:2021-10-07
The invention discloses a synthetic peptide amide compound, which belongs to the field of medicine, and specifically discloses a synthetic peptide amide compound containing a boronic acid group and a preparation method thereof. The invention also discloses use of the synthetic peptide amide compound in the manufacture of a medicament for preventing or treating various diseases associated with κ-opioid receptors.
Photochemical Decarbonylation of Oxetanone and Azetidinone: Spectroscopy, Computational Models, and Synthetic Applications**
作者:Manvendra Singh、Pawan Dhote、Daniel R. Johnson、Samuel Figueroa‐Lazú、Christopher G. Elles、Zarko Boskovic
DOI:10.1002/anie.202215856
日期:2023.1.16
Upon irradiation with UV light, strained heterocyclic ketones expel carbon monoxide through a Norrish type I mechanism. Ylides formed in this way cyclize with a variety of double bonds.
在紫外线照射下,应变杂环酮通过 Norrish I 型机制排出一氧化碳。以这种方式形成的叶立德与多种双键环化。
作者:Isaac F. Yu、Kyan A. D’Angelo、Ángel D. Hernandez-Mejías、Nanrun Cheng、John F. Hartwig
DOI:10.1021/jacs.3c12981
日期:2024.3.20
The catalytic, undirected borylation of alkyl C–Hbonds typically occurs at high reaction temperatures or with excess substrate, or both, because of the low reactivity of alkyl C–Hbonds. Here we report a new iridium system comprising 2-anilino-1,10-phenanthroline as the ligand that catalyzes the borylation of alkyl C–Hbonds with little to no induction period and with high reaction rates. This superior