Organolithium addition to styrene and styrene derivatives: scope and limitations
作者:Xudong Wei、Paul Johnson、Richard J. K. Taylor
DOI:10.1039/a910195k
日期:——
Styrene and a range of aryl-substituted styrenederivatives are shown to undergo efficient carbolithiation–trapping reactions in diethyl ether at −78 to −25 °C. The reactivities of different types of organolithium reagents were found to be: tertiary, secondary > primary; ≫ alkenyl, methyl, phenyl. Electron donating groups (e.g. methoxy and dialkylamino) at the ortho- or para- positions of the benzene
Organolithium additions to styrene are synthetically viable
作者:Xudong Wei、Richard J. K. Taylor
DOI:10.1039/cc9960000187
日期:——
In diethyl ether at –78 to –25 °C, styrene undergoes efficient addition reactions with a range of alkyllithium reagents, and the intermediate benzyllithiums can be trapped (e.g. with carbon dioxide and chlorotrimethylsilane); two aryl-substituted styrenes are shown to react in a similar manner.
cross-coupling reaction of alkyl halides with alkyl Grignard reagents by the combined use of cyclopentadienyl ligand and 1,3-butadiene additive is described. The reaction smoothly proceeds at room temperature using unactivated alkyl bromides and fluorides via non-radical mechanism, which is in sharp contrast with hitherto known Fe-catalyzed cross-coupling reactions of alkyl halides.
描述了通过组合使用环戊二烯基配体和 1,3-丁二烯添加剂,烷基卤化物与烷基格氏试剂的铁催化交叉偶联反应。该反应在室温下使用未活化的烷基溴和氟化物通过非自由基机制顺利进行,这与迄今为止已知的 Fe 催化烷基卤化物的交叉偶联反应形成鲜明对比。
High Pressure Thermal Alkylation of Monoalkylbenzenes by Simple Olefins<sup>1</sup>
作者:Herman Pines、Joseph T. Arrigo
DOI:10.1021/ja01575a036
日期:1957.9
Lehmkuhl,H. et al., Justus Liebigs Annalen der Chemie, 1975, p. 119 - 144