Synthesis of Indole/Benzofuran-Containing Diarylmethanes through Palladium-Catalyzed Reaction of Indolylmethyl or Benzofuranylmethyl Acetates with Boronic Acids
作者:Antonella Goggiamani、Antonia Iazzetti、Antonio Arcadi、Andrea Calcaterra、Marco Chiarini、Giancarlo Fabrizi、Andrea Fochetti、Federico Marrone、Vincenzo Marsicano、Andrea Serraiocco
DOI:10.1055/s-0041-1737275
日期:2022.2
The palladium-catalyzed synthesis of indole/benzofuran-containing diarylmethanes starting from indolylmethyl or benzofuranylmethyl acetates with boronic acids has been investigated. The success of the reaction is influenced by the choice of precatalyst: with indolylmethyl acetates the reaction works well with [Pd(η3-C3H5)Cl]2/XPhos while with benzofuranylmethyl acetates Pd2(dba)3/XPhos is more efficient
已经研究了从吲哚甲基或苯并呋喃甲基乙酸酯与硼酸开始钯催化合成含有吲哚/苯并呋喃的二芳基甲烷。反应的成功受预催化剂选择的影响:对于吲哚基乙酸甲酯,该反应与 [Pd(η 3 -C 3 H 5 )Cl] 2 /XPhos反应良好,而对于苯并呋喃基乙酸甲酯 Pd 2 (dba) 3 /XPhos 则反应良好更高效。良好的高产率和实验程序的简单性使该方案成为制备 2-和 3-取代吲哚和 2-苯并[ b]的通用合成工具]呋喃。该方法可以有利地扩展到扎鲁司特的关键前体的制备。