An efficient copper-catalyzed method for the synthesis of quinolinones, pyridinones, and heteroannulated pyridinones via cascade reactions of substituted 2-iodo-, 2-bromo-, and 2-chlorobenzocarbonyls with 2-arylacetamides is reported. The protocol works well for the reaction of most of the 2-iodo-, 2-bromo- and 2-chlorobenzocarbonyls with 2-arylacetamides. copper iodide - diamines - cascade reactions
Substituted 4-Amino-Quinazoline Compounds with Metabotropic Glutamate Receptor Regulating Activity and Uses Thereof
申请人:REICH Melanie
公开号:US20090069320A1
公开(公告)日:2009-03-12
Substituted 4-amino-quinazoline compounds corresponding to formula I
methods for their production, pharmaceutical compositions containing these compounds as active agents, and the uses thereof for treating or inhibiting disorders or disease states.
Diamine Synthesis via the Nitrogen-Directed Azidation of σ- and π-C–C Bonds
作者:Ming-Ming Wang、Tin V. T. Nguyen、Jerome Waser
DOI:10.1021/jacs.1c06700
日期:2021.8.11
thiophene-2-carboxylate (CuTc, 2 mol %) as catalyst promoted the diazidation of both π and σ C–C bonds within 10 min in the presence of readily available oxidants and trimethylsilyl azide. Selective substitution of the formed α-amino azide by carbon nucleophiles (electron-rich aromatic, malonate, organosilicon, organoboron, organozinc, and organomagnesium compounds) was then achieved in a one-pot fashion
Selective C(sp<sup>3</sup>)-C(sp<sup>3</sup>) Cleavage/Alkynylation of Cycloalkylamides Enables Aminoalkyne Synthesis with Hypervalent Iodine Reagents
作者:Zhengyi Liu、Shuang Wu、Yiyun Chen
DOI:10.1021/acscatal.1c02981
日期:2021.8.20
cleavage/alkynylation of cycloalkylamides for the aminoalkyne synthesis undermildphotoredoxcatalysisconditions. γ- and δ-Aminoalkynes with versatile alkyne and amine substituents are efficiently constructed from cyclopropylamides and cyclobutylamides via amidyl radicals enabled by hypervalentiodine(III) reagents. The catalytic amount of cyclic iodine(III) BI’-OAc facilitated the single-electron oxidation and ring-opening
2-Furanylboronic acid has been identified as an inexpensive and effective catalyst for the dehydrative amide formation of carboxylicacids and amines. This transformation can be efficiently carried out at roomtemperature and is applicable to a wide range of carboxylicacids with primary and secondary amines to afford amides in good to excellent yields.