The development of synthetic methodology that will enable the preparation of vinyl fluorides, bromides, and iodides has become an important theme in vinyl halide chemistry. This is a consequence of the plethora of natural products and compounds of biological interest that possess one or more alkenyl...
Twitter Google Share on Facebook aryl (redirected fromAryl group) Medical Encyclopedia Related to Aryl group:vinyl group,alkyl group,allyl group ar·yl (ăr′əl, âr′-) n. A compound containing benzene or another aromatic hydrocarbon, or a univalent group derived from such a compound ...
Cu0 Nanoparticles Deposited on Nanoporous Polymers: A Recyclable Heterogeneous Nanocatalyst for Ullmann Coupling of Aryl Halides with Amines in Water John Mondal1, Anup Biswas1*, Shunsuke Chiba1 & Yanli Zhao1,2 1Division of Chemistry and Biological Chemistry, School of Physical and Mathematical ...
PRODUCTION OF VINYL, ALKYNYL, ARYL OR HETEROARYL A 优质文献 相似文献Production of optionally substituted alkyl benzene derivatives, useful in the production of e.g. immunomodulator FTY720, comprises reaction of phenyl halide, sulfonate or phosphate and metal-alkyl compound over iron catalyst Production ...
Reactivity of aryl halide decrease in the order; aryl iodide > aryl bromide aryl chloride. In general, the reaction proceeded well and gave good yields of aryl vinyl ketones and aryl vinyl -diketones when reactants are substituted with electron withdrawing groups....
30α-Vinyl-substituted propargylium complexes can be produced from vinyl ethynyl carbinol derivatives. These undergo reaction with carbon nucleophiles exclusively at the terminus remote from the organometallic substituent and with complete (E)-stereoselectivity (Equation (5)).31 In contrast, various acid...
vinyl aromatic compounds, olefins, dienes and vinyl halides and contain, as protective colloid, a partially saponified vinyl acetate-ethylene copolymer comprising 1-15 mol.% ethylene, a degree of saponification for the vinyl acetate units... HP Dr.,SK Dr. 被引量: 0发表: 2009年 Sulphonic acid...
The catalyst with loading Pd 0.19wt% and molar ratio of Pd/Sn 8:1 gives the highest activity and good stability. This catalyst is more reducible with NaBH4. It is also found that the catalyst is easily separated from the reaction system. 展开 关键词: Phase transfer catalyst aryl halide ...
A mild and general method for the conversion of aryl, heteroaryl, and vinyl bromides into the corresponding iodides was developed utilizing a catalyst system comprising 5 mol % of CuI and 10 mol % of a 1,2- or 1,3-diamine ligand. A variety of polar functional groups are tolerated, and...
Ligand-enabled reactivity and selectivity in a synthetically versatile aryl C-H olefination. Science. 2010; 327:315-319. [PubMed: 19965380]... Wang,Dong-Hui,Engle,... - 《Science》 被引量: 155发表: 2010年 Palladium(0)-catalyzed coupling reaction of lithium (.alpha.-carbalkoxyvinyl)cuprate...