One-pot syntheses of α,α-dibromoacetophenones from aromatic alkenes with 1,3-dibromo-5,5-dimethylhydantoin
摘要:
A novel method for the preparation of alpha,alpha-dibromoacetophenones from aromatic alkenes was reported. This procedure was mediated by 1,3-dibromo-5,5-dimethylhydantoin, which served as bifunctional reagent, proceeding oxidation and bromination in one-pot. (C) 2017 Elsevier Ltd. All rights reserved.
Switching Reversibility to Irreversibility in Glycogen Synthase Kinase 3 Inhibitors: Clues for Specific Design of New Compounds
作者:Daniel I. Perez、Valle Palomo、Concepción Pérez、Carmen Gil、Pablo D. Dans、F. Javier Luque、Santiago Conde、Ana Martínez
DOI:10.1021/jm1016279
日期:2011.6.23
halomethylketone moiety to reversibleinhibitors turned them into irreversible inhibitors with IC50 values in the nanomolar range. Overall, the results point out that these compounds might be useful pharmacological tools to explore physiological and pathological processes related to signaling pathways regulated by GSK-3 opening new avenues for the discovery of novel GSK-3 inhibitors.
Switchable Synthesis of α,α‐Dihalomethyl and α,α,α‐Trihalomethyl Ketones by Metal‐Free Decomposition of Enaminone C=C Double Bond
作者:Yunyun Liu、Jin Xiong、Li Wei、Jie‐Ping Wan
DOI:10.1002/adsc.201901234
日期:2020.2.21
(BPO) with mild heating, enabling the tunable synthesis of α,α‐dihalomethyl ketones and α,α,α‐trihalomethyl ketones under different reaction conditions. The formation of these divergent products involving featured C=C double bond cleavage requires no any metal reagent, and represents one more practical example on the synthesis of poly halogenated methyl ketones via the functionalization of carbon−carbon
We report a useful method for facile aerobic photo-oxidative synthesis of alpha,alpha-dibromoacetophenones from aromatic alkynes with 48% aq HBr. This method provides the synthesis of alpha,alpha-dibromoacetophenones using inexpensive and easily handled bromine sources, harmless visible light, and molecular oxygen. (C) 2010 Elsevier Ltd. All rights reserved.
Synthesis of 2-Keto(hetero)aryl Benzox(thio)azoles through Base Promoted Cyclization of 2-Amino(thio)phenols with α,α-Dihaloketones
作者:Jun Jiang、Huaxu Zou、Qizhi Dong、Ruijia Wang、Linghui Lu、Yonggang Zhu、Weimin He
DOI:10.1021/acs.joc.5b02093
日期:2016.1.4
An interesting base-promoted protocol for the synthesis of 2-keto(hetero)aryl benzox(thi)azoles has been developed. Starting from commercially available 2-amino(thio)phenols and alpha,alpha-dihaloketones, moderate to good yields of the corresponding heterocycles can be achieved. Notably, only EtNH2 was required as the promoter here, and the reaction can be easily performed on a large scale.
One-pot syntheses of α,α-dibromoacetophenones from aromatic alkenes with 1,3-dibromo-5,5-dimethylhydantoin
作者:Ping Wu、Senhan Xu、Hao Xu、Haiyan Hu、Wei Zhang
DOI:10.1016/j.tetlet.2016.12.088
日期:2017.2
A novel method for the preparation of alpha,alpha-dibromoacetophenones from aromatic alkenes was reported. This procedure was mediated by 1,3-dibromo-5,5-dimethylhydantoin, which served as bifunctional reagent, proceeding oxidation and bromination in one-pot. (C) 2017 Elsevier Ltd. All rights reserved.