A tandem one-pot aqueous phase synthesis of thiazoles/selenazoles
摘要:
The first ever tandem one-pot synthetic protocol for the synthesis of thiazoles/selenazoles from alkynes via the formation of 2,2-dibromo-1-phenylethanone is reported. The reaction is catalyzed by beta-cyclodextrin in aqueous medium and resulted in good yields. (C) 2012 Elsevier Ltd. All rights reserved.
Metal-free trifunctionalization of phenylacetylenes: an efficient one-pot two-step synthesis of<i>gem</i>-bis(dithiocarbamates)
作者:Manas Mondal、Debajyoti Saha、Amit Saha
DOI:10.1039/d3ob00712j
日期:——
The synthesis of phenacyl-bis(dithiocarbamates) has been reported by metal-free trifunctionalization of phenylacetylene systems by following a one-pot two-step strategy. Phenyl acetylene undergoes molecular bromine-mediated oxidative bromination followed by nucleophilic substitution with the freshly prepared dithiocarbamate salt which is prepared by the prompt reaction of amine and CS2 in the presence
One-pot furan synthesis through diethylzinc-mediated coupling reaction between two α-bromocarbonyl compounds
作者:Ryo Hikima、Aika Takeshima、Taichi Kano
DOI:10.1039/d3ob01521a
日期:——
Polysubstituted furans were synthesized in one-pot through the Et2Zn-mediated couplingreaction between dibromoketones and monobromo carbonyl compounds and the subsequent β-elimination with bromoacetyl bromide. Polysubstituted pyrroles were also prepared in one-pot by addition of primary amines after the couplingreaction.
Selective 1,2-dihalogenation and oxy-1,1-dihalogenation of alkynes by N-halosuccinimides
作者:Jinhua Liu、Wenjuan Li、Chao Wang、Yao Li、Zhiping Li
DOI:10.1016/j.tetlet.2011.06.047
日期:2011.8
1,2-Dihalogenation and oxy-1,1-dihalogenation of alkynes by N-halosuccinimides can be selectively realized through using different reaction conditions. alpha,beta-Dihalo alkenes were obtained exclusively using THF as solvent without using any catalyst, while alpha,alpha-dihalo ketones were synthesized using a mixed solvent of THF and H2O in the presence of FeCl3 center dot 6H(2)O. Terminal aromatic alkynes are smoothly transformed into alpha,alpha-dihalo ketones on water without a catalyst. (C) 2011 Elsevier Ltd. All rights reserved.
[EN] ANTI VIRAL COMPOUNDS<br/>[FR] COMPOSÉS ANTIVIRAUX
申请人:PASTEUR INSTITUT KOREA
公开号:WO2010046780A2
公开(公告)日:2010-04-29
There is provided small molecule anti-human immunodeficiency virus (anti-HIV) compounds as well as a phenotypic cell-based high throughput screening (HTS) assay for their identification.