WebApr 23, 2024 · A novel one-pot [3+2]-cycloaddition reaction of (E)-3-arylidene-1-phenyl-succinimides, cyclic 1,2-diketones (isatin, 5-chloro-isatin and acenaphtenequinone), and diverse α-aminoacids such as 2-phenylglycine or sarcosine is reported.The reaction provides succinimide-substituted dispiropyrrolidine derivatives with high regio- and … WebDec 23, 2024 · A convenient one-step synthesis of 1, 2-diketone diaryl derivatives. J Org Chem 47: 4347-4348. Cao S, Zhong S, Xin L, Wan JP, Wen C (2015) Visible‐light‐induced …
Synthesis of polysubstituted cyclic 1,2-diketones enabled by …
WebSynthesis of Polysubstituted Cyclic 1,2-Diketones Enabled by Iterative Sulfoxide-Mediated Arylation: Authors of publication: Meng, Xiangtai; Chen, Dengfeng ... 2024: a: b: c: α: 90° β: 90° γ: 90° Cell volume: 3: Cell temperature: 283 ± 2 K: Ambient diffraction temperature: 283.47 K: Number of distinct elements: 4: Hermann-Mauguin ... WebThe polysubstituted dienes correspond to the general formula in which: - X denotes a group chosen from SH, SR<3>, OR<3>, SeR<3>, NHR and N=R<3> groups in … signature on word document
Preparation of Cyclic 1,3-Diketones and Their Exploitation in the
Webdimethylcyclopentane-1,2dione) was rejected on spectroscopic grounds, since both the 3,3- and the 4,4_dimethyLcompounds would be expected to absorb in the U.V. at the same … WebJun 1, 2010 · A strategy based on the unique reactivity of cyclic 1,2-diketones (diosphenols) was developed and total synthesis of 1 was achieved in 20 steps, in the longest linear … WebTakemoto thiourea catalyst 19 was used to perform the enantioselective Michael addition between cyclic 1,3-diketones 20 and highly congested enones 21, followed by cyclodehydration in the presence of NH 4 OAc to afford the 4-aryl-1,4-dihydropyridines 22 with good to excellent yields and enantiomeric excesses. signature ortho wbl