1,2-双(2-氟苯基)-2-羟基乙酮 在
air 、 magnetic magnetite nanoparticles 作用下,
以
乙醇 为溶剂,
反应 9.0h,
以90%的产率得到1,2-双(2-氟苯基)乙烷-1,2-二酮
参考文献:
名称:
磁性磁铁矿纳米粒子催化空气中α-羟基酮的选择性氧化和一锅法合成苯甲酸和苯妥英衍生物
摘要:
已开发出一种清洁有效的方案,以磁性磁铁矿纳米粒子(Fe 3 O 4 ·MNPs)为催化剂,以空气为绿色氧化剂,选择性氧化α-羟基酮。Fe 3 O 4 ·MNPs在单锅合成苯甲酸和苯妥英衍生物中也被证明是成功的。简便的一锅法提高了生产效率,缩短了反应时间,并最大程度地减少了化学废物。值得注意的是,该催化剂可以重复使用至少五次,而没有任何明显的活性损失。
Mesoionic Carbene (MIC)-Catalyzed H/D Exchange at Formyl Groups
作者:Wei Liu、Liang-Liang Zhao、Mohand Melaimi、Lei Cao、Xingyu Xu、Jean Bouffard、Guy Bertrand、Xiaoyu Yan
DOI:10.1016/j.chempr.2019.08.011
日期:2019.9
exchange at formyl groups is the most direct approach for the synthesis of deuterated aldehydes. Platinum-group metal complexes have been employed to catalyze this transformation, with significant substrate scope limitations. Although N-heterocyclic carbenes can also activate the C–Hbond of aldehydes through the formation of Breslow intermediates, benzoin condensation and other C–C-bond-forming pathways
[EN] COMPOUNDS AND USES THEREOF IN THE TREATMENT OF CANCERS AND OTHER MEDICAL CONDITIONS<br/>[FR] COMPOSÉS ET LEURS UTILISATIONS DANS LE TRAITEMENT DE CANCERS ET D'AUTRES ÉTATS MÉDICAUX
申请人:THE ROYAL INST FOR THE ADVANCEMENT OF LEARNING/MCGILL UNIV
公开号:WO2017011920A1
公开(公告)日:2017-01-26
There are provided compounds, their preparation and their use in the treatment of medical conditions including cancers and immune disorders.
提供了化合物,它们的制备以及它们在治疗包括癌症和免疫紊乱在内的医疗状况中的用途。
Synthesis and biological evaluation of novel 1,2,4-triazine derivatives bearing carbazole moiety as potent α-glucosidase inhibitors
A new series of 1,2,4-triazine derivativesbearing carbazole moiety 7a-7p were designed, synthesized, and evaluated for their α-glucosidase inhibitory activity. The majority of the screened compounds displayed potent α-glucosidase inhibitory activity, with IC50 values in the range of 4.27±0.07-47.75±0.25μM as compared to the standard drug acarbose. Among the series, compound 7k represented the most
Dendrimer-like core cross-linked micelle stabilized ultra-small gold nanoclusters as a robust catalyst for aerobic oxidation of α-hydroxy ketones in water
decarboxylase (PDC) from Saccharomyces cerevisiae provide different CC bond forming possibilities of α,β-unsaturated aldehydes with aliphatic and aromatic aldehydes. Structure elucidation and determination of the absolute configuration of the products, which were obtained with high regio- and stereoselectivity were carried out. Selective 1,2-reactivity with yields of 75% and >98% ee, for one single isomer