We describe herein a palladium-catalyzed Heck-type reaction of O-acetyl ketoximes and allylicalcohols to pyridines. This protocol allows robust synthesis of pyridines and azafluorenones in good to excellent yields with...
4-HO-TEMPO-Catalyzed Redox Annulation of Cyclopropanols with Oxime Acetates toward Pyridine Derivatives
作者:Jun-Long Zhan、Meng-Wei Wu、Dian Wei、Bang-Yi Wei、Yu Jiang、Wei Yu、Bing Han
DOI:10.1021/acscatal.9b00832
日期:2019.5.3
for the synthesis of pyridines through the annulation of cyclopropanols and oxime acetates has been developed. This protocol features good functional group tolerance and high chemoselectivity and also promises to be efficient for the late-stage functionalization of skeletons of drugs and natural products. Mechanism studies indicate that the reaction involves the in situ generated α,β-unsaturated ketones
zinc‐promoted rearrangement of oxime acetates with arylamines for the synthesis of amidines has been developed under mild conditions. This process involves N−O/C−C bond cleavages and C−C/C−N bond formations. Various oxime acetates and arylamines are suitable for this transformation. Furthermore, diverse arylbenzimidazoles could also be prepared through simple one‐pot procedure.
在温和的条件下,已开发出一种有效且直接的锌促进肟肟与芳胺的锌促进重排以合成for的方法。此过程涉及N / O / C-C键断裂和C-C / C-N键形成。各种肟乙酸酯和芳胺适合于该转化。此外,还可以通过简单的一锅法制备各种芳基苯并咪唑。
Copper-Catalyzed Coupling of Oxime Acetates with Isothiocyanates: A Strategy for 2-Aminothiazoles
copper-catalyzed coupling of oximeacetates with isothiocyanates. Various 4-substituted and 4,5-disubstituted 2-aminothiazoles were formed smoothly under mild reaction conditions. This process involved copper-catalyzed N–O bond cleavage, activation of vinyl sp2 C–H bonds, and C–S/C–N bond formations. It is noteworthy that the oximeacetates were used not only as a substrate but also as a single oxidant
O-acyl derivatives of cyclopentanone and cycloheptanone oximes
作者:N. A. Zhukovskaya、E. A. Dikusar
DOI:10.1134/s1070428010020065
日期:2010.2
By acylation of cyclopentanone and cycloheptanone oximes with carboxylic acids anhydrides or chlorides new esters were obtained of cyclopentanone and cycloheptanone oximes and their spectral characteristics were investigated.