- Halogenation Using Quaternary Ammonium Polyhalides. VII. Iodination of Aromatic Amines by Use of Benzyltrimethylammonium Dichloroiodate(1-)
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The reaction of aromatic amines with benzyltrimethylammonium dichloroiodate(1-) in dichloromethane-methanol in the presence of calcium carbonate powder for several hours at room temperature gave selectively iodo-substituted aromatic amines in good yields.
- Kajigaeshi, Shoji,Kakinami, Takaaki,Yamasaki, Hiromichi,Fujisaki, Shizuo,Okamoto, Tsuyoshi
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- Isothiourea-Catalyzed Atroposelective N-Acylation of Sulfonamides
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We report herein an atroposelective N-acylation of sulfonamides using a commercially available isothiourea catalyst, (S)-HBTM, with a simple procedure. The N-sulfonyl anilide products can be obtained in good to high enantiopurity, which represents a new axially chiral scaffold. The application of the product as a chiral iodine catalyst is also demonstrated for the asymmetric α-oxytosylation of propiophenone.
- Ong, Jun-Yang,Ng, Xiao Qian,Lu, Shenci,Zhao, Yu
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supporting information
p. 6447 - 6451
(2020/09/02)
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- A mild and convenient synthesis of 1,2,3-triiodoarenes via consecutive iodination/diazotization/iodination strategy
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A mild and convenient synthesis of 1,2,3-triiodoarenes has been developed. This method consists of two steps which can be performed on multigram scale with moderate to excellent yields. This report discloses a practical synthesis of 1,2,3-triiodoarenes and 1,2,3-trihaloarenes that is general in scope, operationally simple, scalable, and is easy to workup and to purify. We also report the first regioselective transmetalation reaction of 1,2,3-triiodoarenes to provide ortho-diiodoaryl derivatives, which are useful building blocks and indeed are hard to make by other means. CSIRO 2013.
- Al-Zoubi, Raed M.,Futouh, Hassan Abul,McDonald, Robert
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p. 1570 - 1575
(2014/01/23)
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- The synthesis of novel iodinated iminodiacetic acid analogues as hepatobiliary imaging agents
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The synthesis and characterization of N-[2-[[4-iodo-2,6-bis(1-methylethyl) phenyl]amino]-2-oxoethyl]-N-(carboxymethyl)glycine and N-[2-[(4-iodo-2,6- diethylphenyl)amino]-2-oxoethyl]-N-(carboxymethyl)glycine is presented, as well as a modified and improved
- Brboric, Jasmina S.,Vladimirov, Sote,Jovanovic, Mirjana S.,Dogovic, Nikola
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p. 1009 - 1014
(2007/10/03)
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