二取代的苯并[ b ]呋喃是通过二氯苯酚和末端炔的邻位选择性Sonogashira偶联反应,然后使用钯-二羟基叔苯基膦(Cy-DHTP)催化剂在一个罐中进行环化和Suzuki-Miyaura偶联反应而合成的。亚化学计量的四丁基氯化铵的使用有效地加速了Suzuki-Miyaura偶联。该方案也成功地用于从二氯苯胺衍生物的一锅法合成二取代的吲哚。
An Efficient One-Pot Synthesis of Benzo[4,5]imidazo[1,2-<i>a</i>]quinoxalines <i>via</i> Copper-Catalyzed Process
作者:Aiping Huang、Yimu Chen、Yige Zhou、Wei Guo、Xiaodong Wu、Chen Ma
DOI:10.1021/ol4026292
日期:2013.11
A copper-catalyzed one-pot process for the construction of benzo[4,5]imidazo[1,2-a]quinoxalines under air is described. Aryl chlorides, aryl bromides, and aryl iodides can be applied to the synthesis of these compounds.
描述了在空气下构造苯并[4,5]咪唑并[1,2- a ]喹喔啉的铜催化一锅法。芳基氯化物,芳基溴化物和芳基碘化物可用于这些化合物的合成。
81. Methylation of 3-aminopyridines and preparation of 2-amino-3-methylaminopyridine and 2 : 3-diaminopyridine
作者:J. W. Clark-Lewis、M. J. Thompson
DOI:10.1039/jr9570000442
日期:——
One-Pot Synthesis of Substituted Benzo[<i>b</i>]furans and Indoles from Dichlorophenols/Dichloroanilines Using a Palladium–Dihydroxyterphenylphosphine Catalyst
Sonogashira coupling of dichlorophenols and terminal alkynes, followed by cyclization and Suzuki–Miyauracoupling in one pot, using a palladium–dihydroxyterphenylphosphine (Cy-DHTP) catalyst. The use of substoichiometric amounts of tetrabutylammonium chloride was effective in accelerating the Suzuki–Miyauracoupling. This protocol was also successfully applied to the one-pot synthesis of disubstituted
二取代的苯并[ b ]呋喃是通过二氯苯酚和末端炔的邻位选择性Sonogashira偶联反应,然后使用钯-二羟基叔苯基膦(Cy-DHTP)催化剂在一个罐中进行环化和Suzuki-Miyaura偶联反应而合成的。亚化学计量的四丁基氯化铵的使用有效地加速了Suzuki-Miyaura偶联。该方案也成功地用于从二氯苯胺衍生物的一锅法合成二取代的吲哚。