Palladium-Catalyzed One-Pot Approach to 3-(Diarylmethylene)oxindoles from Propiolamidoaryl Triflate
作者:Dahye Lee、Sunhwa Park、Yoseb Yu、Kye Shin、Jae Seo
DOI:10.3390/molecules200814022
日期:——
3-(Diarylmethylene)oxindoles have been synthesized from propiolamidoaryl triflate utilizing a palladium-catalyzed one-pot reaction consisting of three successive reactions: Sonogashira, Heck, and Suzuki-Miyaura. This method allows for the production of a complex skeleton of 3-(diarylmethylene)oxindole from propiolamidoaryl triflate using a commercially available aryl iodide and arylboronic acid in a simple and efficient way with moderate yield and stereoselectivity.
Palladium-Catalyzed Tandem Approach to 3-(Diarylmethylene)oxindoles Using Microwave Irradiation
作者:Jae Seo、Sunhwa Park、Kye Shin
DOI:10.1055/s-0035-1560091
日期:——
We developed a rapid and efficient microwave-assisted tandem reaction for the synthesis of 3-(diarylmethylene)oxindoles. Three palladium-catalyzedreactions (Sonogashira, Heck, and Suzuki–Miyaura reactions) were combined under microwave irradiation conditions to produce 3-(diarylmethylene)oxindoles from simple propiolamides, aryliodides, and arylboronic acids. The addition of Ag 3 PO 4 enhanced the
我们开发了一种快速有效的微波辅助串联反应,用于合成 3-(二芳基亚甲基)羟吲哚。三个钯催化的反应(Sonogashira、Heck 和 Suzuki-Miyaura 反应)在微波辐射条件下结合,从简单的丙酰胺、芳基碘和芳基硼酸生产 3-(二芳基亚甲基)羟吲哚。Ag 3 PO 4 的加入显着提高了串联反应的产率和立体选择性。
Ru-Catalyzed dehydrogenative synthesis of antimalarial arylidene oxindoles
作者:Girish Singh Bisht、Akanksha M. Pandey、Moreshwar B. Chaudhari、Sandip G. Agalave、Abhishek Kanyal、Krishanpal Karmodiya、Boopathy Gnanaprakasam
DOI:10.1039/c8ob01852a
日期:——
2-oxindoles using diaryl methanols in the absence of an acceptor. A wide array of symmetrical and unsymmetrical diaryl methanols undergoes dehydrogenative coupling with 2-oxindole selectively to generate various substituted 3-(diphenylmethylene)indolin-2-one derivatives in good yields and produces environmentally benign by-products, H2 and H2O. This methodology was successfully applied for the synthesis of
A novel one-pot reaction for the synthesis of 3-(diarylmethylene)oxindoles is described. The reaction involves the successive combination of three palladium-catalyzed reactions (Sonogashira, Heck, and Suzuki-Miyaura reactions). This method enables the rapid synthesis of various 3-(diarylmethylene)oxindoles from simple propiolamides. The addition of silver salts dramatically enhanced the E/Z stereoselectivity of the reaction.