Single-step synthesis of styryl phosphonic acids via palladium-catalyzed Heck coupling of vinyl phosphonic acid with aryl halides
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چکیده
منابع مشابه
Palladium(II)-catalyzed Heck reaction of aryl halides and arylboronic acids with olefins under mild conditions
A series of general and selective Pd(II)-catalyzed Heck reactions were investigated under mild reaction conditions. The first protocol has been developed employing an imidazole-based secondary phosphine oxide (SPO) ligated palladium complex (6) as a precatalyst. The catalytic coupling of aryl halides and olefins led to the formation of the corresponding coupled products in excellent yields. A v...
متن کاملHeck Coupling Styrene with Aryl Halides Catalyzed by Palladium Complexes in Biphasic Media
* corresponding author, e-mail: [email protected] ; tel : (216) 74276400 ; fax : (216) 74274437 ABSTRACT: In this work, we have studied the effect of the halide nature in the coupling of styrene with halide benzene catalysed by palladium acetate or chloride. The activation by a catalyst of phase-transfer type Aliquat-336 improves the reactivity in N, N-dimethylformamide-water mixture. The...
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Completely linear: a general and practical palladium-catalyzed linear-selective Negishi coupling of 3,3-disubstituted allylzinc reagents with aryl, heteroaryl and vinyl electrophiles at ambient temperature is described. This method provides an effective means to access a wide range of prenylated arenes or skipped dienes in a completely linear-selective fashion, as demonstrated by a concise synt...
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متن کاملCopper(I)-catalyzed synthesis of 1,3-enynes via coupling between vinyl halides and alkynes or domino coupling of vinyl halides.
1,3-Enynes were easily prepared from coupling between vinyl halides and alkynes or domino coupling of vinyl halides in the presence of copper iodide. It is noteworthy that the double-bond geometry of the vinyl halides was retained during the reaction. This ligand-free protocol is potentially useful and practical.
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ژورنال
عنوان ژورنال: Chemical Communications
سال: 2017
ISSN: 1359-7345,1364-548X
DOI: 10.1039/c7cc05909d