The Hiyama Cross-Coupling Reaction: New Discoveries
نویسندگان
چکیده
منابع مشابه
Palladium-catalyzed Hiyama coupling reaction of arylsulfonyl hydrazides under oxygen.
Palladium-catalyzed Hiyama cross-coupling reactions of various arylsulfonyl hydrazides with a wide variety of aryl silanes have been achieved in good to excellent yields under simple conditions. The newly developed catalytic system does not require the use of expensive silver- or copper-based stoichiometric oxidants and can be accelerated by the addition of TBAT under an atmosphere of oxygen. T...
متن کاملCopper-catalyzed Hiyama cross-coupling using vinylsilanes and benzylic electrophiles.
Allylbenzene derivatives are ubiquitous frameworks in organic chemistry. Herein is described an efficient copper-catalyzed cross-coupling reaction using vinylsilanes and benzyl bromides, leading to the synthesis of allylbenzenes. This methodology allows the use of cis, trans and 1,1'-disubstituted vinylsilanes as well as a large number of sensitive moieties.
متن کاملDual role of silanol groups in cyclopropanation and Hiyama-Denmark cross-coupling reactions.
Di-tert-butoxy(alkenyl)silanols serve as substrates in the Simmons-Smith cyclopropanation reaction furnishing the corresponding di-tert-butoxy(cyclopropyl)silanols, which may be included in a Hiyama-Denmark cross-coupling reaction. The silanol group bears two distinct roles as it provides a directing group during the cyclopropanation and mediates the transmetalation event in the cross-coupling....
متن کاملCross-coupling reaction with lithium methyltriolborate.
We newly developed lithium methyltriolborate as an air-stable white solid that is convenient to handle. The good performance of this triolborate for metal-catalyzed bond-forming reactions was demonstrated in palladium-catalyzed cross-coupling reactions with haloarenes. Cross-coupling reaction of [MeB(OCH₂)₃CCH₃]Li with aryl halides occurred in the presence of Pd(OAc)₂/RuPhos complex in refluxin...
متن کاملAn air stable and efficient palladium catalyst for Suzuki-Miyaura cross coupling reaction at room temperature
The cross-coupling reaction between phenylboronic acid and various types of aryl halides (Suzuki reaction) was carried out using a catalytic amount of a new palladium catalyst (1-benzyl-3-(1-benzyl-1-methylpyrrolidin-1-ium-2-yl) pyridin-1-ium palladium chloride [DBNT][PdCl4]) in poly (ethylene glycol) (PEG-200) in the presence of KOH as the base. This new catalyst was synthesized and...
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ژورنال
عنوان ژورنال: The Chemical Record
سال: 2016
ISSN: 1527-8999
DOI: 10.1002/tcr.201600063