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 se...
Phase-Transfer-Catalyzed Asymmetric Synthesis of Axially Chiral Anilides
作者:Kun Liu、Xiangfei Wu、S. B. Jennifer Kan、Seiji Shirakawa、Keiji Maruoka
DOI:10.1002/asia.201301036
日期:2013.12
Catalytic asymmetricsynthesis of axiallychiral o‐iodoanilides and o‐tert‐butylanilides as useful chiral building blocks was achieved by means of binaphthyl‐modified chiral quaternary ammonium‐salt‐catalyzed N‐alkylations under phase‐transfer conditions. The synthetic utility of axiallychiral products was demonstrated in various transformations. For example, axiallychiral N‐allyl‐o‐iodoanilide was
Enantioselective N-Heterocyclic Carbene-Catalyzed Kinetic Resolution of Anilides
作者:Jianbo Bie、Ming Lang、Jian Wang
DOI:10.1021/acs.orglett.8b02538
日期:2018.9.21
The N-heterocyclic carbene (NHC)-catalyzed enantioselectivekineticresolution of anilides (a kind of hemiaminals) is reported. Upon exposure to the reaction in the presence of an NHC precatalyst and base, catalytic C–O bond formation occurs, providing axially chiral isoindolinones in high yields with excellent enantioselectivities.
The Synthesis of Novel Iodinated Iminodiacetic Acid Analogues as Hepatobiliary Imaging Agents
作者:Jasmina S. Brborić、Sote Vladimirov、Mirjana S. Jovanović、Nikola Dogović
DOI:10.1007/s00706-004-0174-x
日期:2004.8
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 synthesis of N -[2-[(2,4-diiodo-6-methylphenyl)amino]-2-oxoethyl]- N -(carboxymethyl)glycine. These compounds are new agents for hepatobiliary
Reactions of 2-iodoanilines with ethyl buta-2,3-dienoate catalyzed by potassium carbonate and CuI in one pot generate the corresponding ethyl 2-methyl-1H-indole-3-carboxylate products in moderate yields under mild conditions. indoles - aniline - allenes - copper - catalysis