Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Vinyl organozinc halides

In the presence of a Pd(0) catalyst, organozinc halides can couple directly with aryl and vinyl halides to form novel arenes or biaryls. [Pg.387]

Negishi Cross-Coupling of Vinyl and Aryl Organozinc Halides... [Pg.34]

Metal-catalyzed cross-coupling reactions of organozinc derivatives with aryl and vinyl halides 408... [Pg.311]

Organozinc reagents, including the Reformatsky reagents, are extensively used in transition metal catalysed coupling reactions with aryl halides or triflates, vinyl halides, and allylic halides or acetates, as reviewed by Erdik156. Nickel and palladium complexes are... [Pg.833]

By other reactions Iodosylbenzene, 151 Organozinc reagents, 220 Alkyl halides (see also Allylic halides, Dihalides, Halo acetals and ketals, etc., Vinyl halides)... [Pg.382]

Step b Negishi reaction transmetallation (A1 to Zn) followed by cross-coupling of the resultant organozinc species with the vinyl halide. The Pd(0) catalyst was generated by treatment of (PhaP PdC with DIBAL-H. [Pg.148]

Organozinc reagents have been coupled with halides in the synthesis of dienes and other conjugated systems to form new carbon-carbon bonds such reactions have been reviewed477-479. In particular, the reaction of alkynyl zinc reagents with vinyl halides has been used in natural product synthesis, usually catalyzed by palladium complex catalysts. [Pg.730]

The Negishi reaction, which couples aryl and vinyl halides with organozinc reagents, is potentially more usefiil than... [Pg.3563]

See other pages where Vinyl organozinc halides is mentioned: [Pg.227] [Pg.227] [Pg.370] [Pg.95] [Pg.119] [Pg.730] [Pg.105] [Pg.91] [Pg.17] [Pg.19] [Pg.106] [Pg.324] [Pg.566] [Pg.685] [Pg.723] [Pg.108] [Pg.136] [Pg.451] [Pg.271] [Pg.273] [Pg.507] [Pg.1120] [Pg.642] [Pg.20] [Pg.354] [Pg.147] [Pg.347] [Pg.183] [Pg.326] [Pg.1298] [Pg.1323] [Pg.96] [Pg.117] [Pg.647] [Pg.467] [Pg.5202] [Pg.647] [Pg.467] [Pg.605] [Pg.606]

SEARCH

Organozinc

Organozinc halides

Organozincates

Organozincs

Vinyl halides

Vinylic halides