Double C–H amination by consecutive SET oxidations

New method for synthesis of 2-hetarylquinazolin-4(3H)-ones from 2-aminobenzamides and (2-azaaryl)methanes under transition-metal free conditions, featuring a wide substrate scope with a broad range of functional group tolerance under mild conditions.

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ChemInform Abstract: A New Method for the Synthesis of Iminoquinones via DMP-Mediated Oxidative Reaction.

ChemInform ◽

10.1002/chin.201104083 ◽

2010 ◽

Vol 42 (4) ◽

pp. no-no

Author(s):

Hengchang Ma ◽

Shang Wu ◽

Qiangsheng Sun ◽

Hongyan Li ◽

Yannan Chen ◽

...

Keyword(s):

New Method ◽

Oxidative Reaction

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An iodine-promoted one-pot and metal-free access to indolin-2-ones

Journal of Chemical Research ◽

10.1177/1747519819875862 ◽

2019 ◽

Vol 43 (11-12) ◽

pp. 542-547

Author(s):

Yong Zhang ◽

Xi Zong ◽

Min Ji

Keyword(s):

New Method ◽

Free Access ◽

One Pot ◽

Oxidative Reaction ◽

Metal Free

A new method for the synthesis of indolin-2-ones has been realized by an I2-promoted oxidative reaction from 1,2,3,3-tetramethyl-3 H-indolium iodides. This transformation proceeded smoothly under metal-free and peroxide-free conditions in a cascade manner.

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A New Method for the Synthesis of Iminoquinones via DMP-Mediated Oxidative Reaction

Synthesis ◽

10.1055/s-0030-1258202 ◽

2010 ◽

Vol 2010 (19) ◽

pp. 3295-3300 ◽

Cited By ~ 7

Author(s):

Hengchang Ma ◽

Ziqiang Lei ◽

Shang Wu ◽

Qiangsheng Sun ◽

Hongyan Li ◽

...

Keyword(s):

New Method ◽

Oxidative Reaction

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Initial Polymerization Sites Indicated During Mitochondrial Oxidation of Diaminobenzidine after Toluene Treatment

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100079498 ◽

1977 ◽

Vol 35 ◽

pp. 408-409

Author(s):

W. A. Shannon ◽

M. A. Matlib

Keyword(s):

Membrane Permeability ◽

Cytochrome Oxidase ◽

Rat Liver ◽

Precise Definition ◽

Cytochemical Localization ◽

Oxidative Reaction ◽

Mitochondrial Oxidation ◽

Definition Of ◽

Exogenous Substrates

Numerous studies have dealt with the cytochemical localization of cytochrome oxidase via cytochrome c. More recent studies have dealt with indicating initial foci of this reaction by altering incubation pH (1) or postosmication procedure (2,3). The following study is an attempt to locate such foci by altering membrane permeability. It is thought that such alterations within the limits of maintaining morphological integrity of the membranes will ease the entry of exogenous substrates resulting in a much quicker oxidation and subsequently a more precise definition of the oxidative reaction.The diaminobenzidine (DAB) method of Seligman et al. (4) was used. Minced pieces of rat liver were incubated for 1 hr following toluene treatment (5,6). Experimental variations consisted of incubating fixed or unfixed tissues treated with toluene and unfixed tissues treated with toluene and subsequently fixed.

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Selective Sampling and Orientation of Non-Homogeneous Tissues

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100100238 ◽

1968 ◽

Vol 26 ◽

pp. 98-99

Author(s):

C. C. Clawson ◽

L. W. Anderson ◽

R. A. Good

Keyword(s):

Electron Microscopy ◽

Electron Microscope ◽

Light Microscopy ◽

Random Sampling ◽

New Method ◽

Microscope Examination ◽

Small Areas ◽

Selective Sampling ◽

Large Numbers ◽

Specific Orientation

Investigations which require electron microscope examination of a few specific areas of non-homogeneous tissues make random sampling of small blocks an inefficient and unrewarding procedure. Therefore, several investigators have devised methods which allow obtaining sample blocks for electron microscopy from region of tissue previously identified by light microscopy of present here techniques which make possible: 1) sampling tissue for electron microscopy from selected areas previously identified by light microscopy of relatively large pieces of tissue; 2) dehydration and embedding large numbers of individually identified blocks while keeping each one separate; 3) a new method of maintaining specific orientation of blocks during embedding; 4) special light microscopic staining or fluorescent procedures and electron microscopy on immediately adjacent small areas of tissue.

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