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.
Consecutive One-Pot versus Domino Multicomponent Approaches to 3-(Diarylmethylene)oxindoles
作者:Sunhwa Park、Jiyun Lee、Kye Shin、Euichaul Oh、Jae Seo
DOI:10.3390/molecules22030503
日期:——
reactions (Sonogashira, Heck and Suzuki-Miyaura reactions), a more efficient domino multicomponent method has been successfully developed to access a wide variety of 3-(diarylmethylene)oxindoles. Microwave irradiation and use of a silver salt were the most important factors to achieve high yields and stereoselectivity.
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
Carbonyl group directed synthesis of 3-boryl-3-substituted alkenyl oxindoles and tetrasubstituted β-borylenones
作者:Debraj Ghorai、Kanak Kanti Das、Santanu Panda
DOI:10.1039/d3cc04788a
日期:——
Transition metal-free carbonyl directed boron-Wittig reaction of α-bis(boryl)carbanions with the corresponding isatins or with the α-keto esters/amides was achieved to access alkenyl oxindoles in good yield and high stereoselectivity.
Blue LED-Mediated Synthesis of 3-Arylidene Oxindoles
作者:Sengodagounder Muthusamy、Chinnathambi Ramesh
DOI:10.1021/acs.joc.3c00099
日期:2023.5.5
Blue LED-promoted cross-coupling olefination of symmetrical and unsymmetrical 3-arylidene oxindoles has been described from diazoindolones and diphenylmethanethiones. Thermal olefin isomerization and stereoselective synthesis of 3-arylidene oxindoles were also demonstrated in good yield.
蓝色 LED 促进的对称和不对称 3-亚芳基羟吲哚的交叉偶联烯化已从重氮吲哚酮和二苯基甲硫酮中得到描述。还证明了 3-亚芳基羟吲哚的热烯烃异构化和立体选择性合成具有良好的产率。