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Neopentylphosphines as effective ligands in palladium-catalyzed cross-couplings of aryl bromides and chlorides
Tetrahedron ( IF 2.1 ) Pub Date : 14 July 2008 , DOI: 10.1016/j.tet.2008.02.037
Lensey L. Hill , Joanna M. Smith , William S. Brown , Lucas R. Moore , Paul Guevera , Emily S. Pair , Jake Porter , Joe Chou , Christopher J. Wolterman , Raluca Craciun , David A. Dixon , Kevin H. Shaughnessy

The use of neopentylphosphine ligands in the palladium-catalyzed Suzuki, Sonogashira, Heck, and Hartwig–Buchwald couplings of aryl bromides and chlorides are reported. Di-tert-butylneopentylphosphine (DTBNpP) provided highly active catalysts for the coupling of aryl bromides at mild temperatures. Trineopentylphosphine, an air-stable trialkylphosphine, gave inactive catalysts at room temperature, but showed good activity in the H–B amination of aryl chlorides at elevated temperatures.

中文翻译:

新戊基膦作为钯催化的芳基溴化物和氯化物交叉偶联的有效配体

据报道,新戊基膦配体在钯催化的Suzuki,Sonogashira,Heck和Hartwig-Buchwald芳基溴化物和氯化物偶联反应中使用。二--butylneopentylphosphine(DTBNpP)对于芳基溴的在温和的温度的耦合提供高活性催化剂。脯氨酰叔丁基膦,一种空气稳定的三烷基膦,在室温下可提供惰性催化剂,但在升高的温度下芳基氯化物的H–B胺化反应中表现出良好的活性。
更新日期:2017-01-31
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