461677-71-4Relevant articles and documents
Synthesis of Isatin-Hydrazones from 3-Diazo Oxindoles and Sulfoxonium Ylides under Catalyst- and Additive-Free Conditions
Tian, Yu,Zhang, Zunting,Wang, Tao
supporting information, p. 1592 - 1595 (2021/02/26)
A facile synthesis of isatin-hydrazones from 3-diazo oxindoles and sulfoxonium ylides under catalyst- and additive-free conditions is described. A plausible reaction pathway is proposed for the transformation, in which diazo compounds play as electrophile
Visible-Light-Mediated Cyclopropanation Reactions of 3-Diazooxindoles with Arenes
Zhao, Shuai,Chen, Xiang-Xiang,Gao, Nan,Qian, Mingcheng,Chen, Xin
, p. 7131 - 7140 (2021/05/06)
The cyclopropanation reaction of 3-diazooxindoles with arenes was first accomplished using visible-light irradiation. A series of spiro[norcaradiene-7,3′-indolin]-2′-ones were synthesized for the first time in high yields and with excellent diastereoselectivities. The synthetic usefulness of this catalyst-free photochemical methodology is illustrated by the further controllable rearrangement and epoxidation reactions.
Diastereoselective Palladium Catalyzed Carbenylative Amination of ortho-Vinylanilines with 3-Diazoindolin-2-ones
Reddy, Angula Chandra Shekar,Reddy, Palagulla Maheswar,Anbarasan, Pazhamalai
, p. 801 - 806 (2020/01/25)
A diastereoselective palladium catalyzed carbenylative amination of ortho-vinylaniline with 3-diazoindolines-2-one have been accomplished for the synthesis of various tetrasubstituted indoline fused spirooxindole with good yields and diastereoselectivity. Notable features of the method include construction of two contiguous tetrasubstituted carbon stereocenters via C?N and C?C bond formation in single operation, wide functional group tolerance and high atom and step economy. Importantly, the present reaction was also extended to one-pot conversion of tosylhydrazones and ortho-vinylanilines to spirooxindole derivatives. (Figure presented.).
