cas 487-10-5, 1,1'-Azonaphthalene | Articles data

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Tandem selective reduction of nitroarenes catalyzed by palladium nanoclusters
We report a catalytic tandem reduction of nitroarenes by sodium borohydride (NaBH4) in aqueous solution under ambient conditions, which can selectively produce five categories of nitrogen-containing compounds: anilines, N-aryl hydroxylamines, azoxy-, azo- and hydrazo-compounds. The catalyst is in situ-generated ultrasmall palladium nanoclusters (Pd NCs, diameter of 1.3 ± 0.3 nm) from the reduction of Pd(OAc)2 by NaBH4. These highly active Pd NCs are stabilized by surface-coordinated nitroarenes, which inhibit the further growth and aggregation of Pd NCs. By controlling the concentration of Pd(OAc)2 (0.1-0.5 mol% of nitroarene) and NaBH4, the water/ethanol solvent ratio and the tandem reaction sequence, each of the five categories of N-containing compounds can be obtained with excellent yields (up to 98%) in less than 30 min at room temperature. This tunable catalytic tandem reaction works efficiently with a broad range of nitroarene substrates and offers a green and sustainable method for the rapid and large-scale production of valuable N-containing chemicals.
Yan, Ziqiang,Xie, Xiaoyu,Song, Qun,Ma, Fulei,Sui, Xinyu,Huo, Ziyu,Ma, Mingming
supporting information
p. 1301 - 1307
(2020/03/11)

Immobilized antimony species on magnetite: A novel and highly efficient magnetically reusable nanocatalyst for direct and gram-scale reductive-coupling of nitroarenes to azoarenes
In this study, magnetic nanoparticles of Fe3O4@SbFx from the immobilization of SbF3 on magnetite were synthesized. The prepared nanocomposite system was then characterized using scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray diffraction, energy-dispersive X-ray spectroscopy, vibrating sample magnetometry and inductively coupled plasma optical emission spectroscopy. Next, the catalytic activity of Fe3O4@SbFx MNPs was highlighted by one-pot reductive-coupling of aromatic nitro compounds to the corresponding azoarene materials with NaBH4. The reactions were carried out in refluxing EtOH within 6-25 min to afford the products in high yields. The reusability of the Sb-magnetite system was also studied for 6 consecutive cycles without significant loss of catalytic activity. This synthetic protocol provided several advantages in terms of introducing a novel catalytic system based on antimony species for direct and gram-scale preparation of azoarenes from nitroarenes, low loading of the nanocatalyst, mild reaction conditions, using ethanol as a green and economic solvent and high yield of the products.
Zeynizadeh, Behzad,Faraji, Fariba
p. 13112 - 13121
(2019/05/10)

Aromatic amine oxidation process for preparing aromatic azobenzene method
The invention relates to a method for preparing an aromatic azo compound by utilizing aromatic amine oxidation. In the method, air or oxygen serves as an oxygen source, and under the effect of a catalyst, aromatic amine is oxidized into the aromatic azo compound. The method is high in oxidization efficiency and product yield; the air or the oxygen serves as the oxygen source, and the method is economical and environmentally friendly. The product and the catalyst can be separated easily, and the aftertreatment is simple. The catalyst is easy to reuse, and the method has very good application prospect.
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(2017/10/11)

Mesoporous manganese oxide catalyzed aerobic oxidative coupling of anilines to aromatic azo compounds
Herein we introduce an environmentally friendly approach to the synthesis of symmetrical and asymmetrical aromatic azo compounds by using air as the sole oxidant under mild reaction conditions in the presence of cost-effective and reusable mesoporous manganese oxide materials.
Dutta, Biswanath,Biswas, Sourav,Sharma, Vinit,Savage, Nancy Ortins,Alpay, S. Pamir,Suib, Steven L.
supporting information
p. 2171 - 2175
(2016/02/18)

The palladium and copper contrast: A twist to products of different chemotypes and altered mechanistic pathways
A novel contrast in palladium and copper catalysis is revealed to form products of different chemotypes resulting in a phenazine to azoarene twist through an altered mechanistic pathway (from non-radical C-H activation mode of C-N coupling to radical N-N coupling) during the oxidative self-coupling of anilines catalysed by Pd-Ag and Cu-Ag nanoclusters.
Seth, Kapileswar,Roy, Sudipta Raha,Kumar, Asim,Chakraborti, Asit K.
p. 2892 - 2896
(2016/05/24)

Photocatalytic reduction of nitroarenes to azo compounds over N-doped TiO2: Relationship between catalysts and chemical reactivity
This work deals with selective reduction of aromatic nitro compounds to corresponding symmetrical substituted azo compounds using nitrogen-doped TiO2 nanoparticles as photocatalyst in the presence of a catalytic amount of formic acid. Various azo compounds containing additional reducible substituents including halogens, and carboxyl and phenol functions have been synthesized in a single step by use of this catalyst. The conversion was reasonably fast, clean, and high yielding at room temperature. A mechanism of formation for the azo compounds is proposed. The behavior of the N/TiO2 catalyst is of particular interest because this is the first time, as far as we know, that formation of azo compounds has been catalyzed by an N-doped TiO2 photocatalyst. Nitrogen-doped TiO2 was prepared by a simple modified sol-gel process with urea as nitrogen source. The catalysts were characterized by X-ray diffraction, X-ray photoelectron spectroscopy (XPS), Fourier-transform infrared spectroscopy, and transmission electron microscopy. The chemical nature of N was identified by XPS as N-Ti-O in the anatase TiO2 lattice.
Wang, Huqun,Yang, Xiaofeng,Xiong, Weifeng,Zhang, Zhimin
p. 3981 - 3997
(2015/06/08)

A facile superoxide induced conversion of aromatic amines to azo compounds under microwave irradiation
The present report demonstrates an efficient use of tetraethylammonium superoxide under non-aqueous conditions to bring about a mild and convenient transformation of aromatic amines to azo compounds in good yield under mono-mode microwave irradiation.
Singh, Sundaram,Singh, Krishna Nand
experimental part
p. 841 - 843
(2012/04/04)

Synthesis of azo compounds by nanosized iron-promoted reductive coupling of aromatic nitro compounds
Treatment of a variety of aromatic nitro compounds with the active-iron based reducing system composed of FeCl2·4H2O, an excess of lithium powder and a catalytic amount of 4,4′-di-tert-butylbiphenyl (DTBB, 5 mol %) in THF at room temperature, led to the formation of the corresponding symmetrically substituted azo compounds in good yield, resulting from a reductive coupling process. Some other functionalities including carbonyl, halogen, amino and hydroxyl groups, demonstrated to be compatible with the reaction conditions, giving none reduced or coupled by-products. In all cases, the azo compounds formed have not experienced over-reduction to the corresponding hydrazo or amino derivatives even upon prolonged heating or using an excess of the reducing system.
Moglie, Yanina,Vitale, Cristian,Radivoy, Gabriel
p. 1828 - 1831
(2008/09/18)

An easy access to aromatic azo compounds under ultrasound/microwave irradiation
Chemoselective reduction of nitroarenes to azo and azoxy compounds was easily achieved using zinc powder and ammonium chloride in DMF or DMF-water (95:5) under high intensity ultrasound (US) or microwave (MW) irradiation, separately or combined. When carried out under conventional heating the reaction required much higher temperatures and gave lower yields. The addition of a small amount of water caused a dramatic increase in the reactivity, permitting the reduction of hindered nitroarenes at the expense of selectivity. A novel reactor for combined US/MW irradiation was employed which demonstrated additional beneficial effects. Georg Thieme Verlag Stuttgart.
Cravotto, Giancarlo,Boffa, Luisa,Bia, Marco,Bonrath, Werner,Curini, Massimo,Heropoulos, Georgios A.
p. 2605 - 2608
(2008/09/16)

Facile synthesis of azo compounds from aromatic nitro compounds using magnesium and triethylammonium formate
Magnesium/triethylammonium formate is a convenient reagent for the reduction of aromatic nitro compounds to corresponding symmetrically substituted azo compounds. Various azo compounds containing additional reducible substituents, including halogen, nitrile, acid, phenol, ester, and methoxy functions, have been synthesized in a single step by the use of this reagent. The conversion is reasonably fast, clean, high yielding, and occurs at room temperature in methanol.
Srinivasa,Abiraj,Gowda, D. Channe
p. 609 - 610
(2007/10/03)

A simple and efficient method for the dehydrogenation of symmetric hydrazo compounds with NaNO2-Ac2O
Rapid oxidation of eighteen symmetric hydrazo compounds to corresponding azo compounds using NaNO2-acetic anhydride as a novel oxidizing agent under mild condition is reported for the first time.
Li, Xiaochuan,Wang, Yulu,Wang, Jinye
p. 677 - 678
(2007/10/03)

Cytochrome P-450 dependent monooxygenases model system: Rapid and efficient oxidation of primary aromatic amines to azo derivatives with sodium periodate catalyzed by manganese(III) Schiff base complexes
Rapid and efficient oxidation of primary aromatic amines was investigated. Mn(III)-salophen catalyst can catalyze the oxidation of primary aromatic amines to azo derivatives with sodium periodate. The ability of various Schiff base complexes in this oxidation system was also investigated.
Mirkhani, Valiollah,Tangestaninejad, Shahram,Moghadam, Majid,Moghbel, Maryam
p. 4673 - 4677
(2007/10/03)

The synthesis of azo compounds from nitro compounds using lead and triethylammonium formate
Aromatic nitro compounds were reduced to the corresponding symmetrically substituted azo compounds using lead as catalyst and triethylammonium formate as hydrogen donor. Various azo compounds containing additional reducible substituents including halogens, nitrile, acid, phenol, ester, methoxy functions, etc, have been synthesized in a single step by the use of this reagent. The conversion is reasonably fast, clean, high yielding and occurs at room temperature in methanol.
Srinivasa,Abiraj,Gowda, D. Channe
p. 5835 - 5837
(2007/10/03)

Application of lead and ammonium formate as a new system for the synthesis of azo compounds
Aromatic nitro compounds containing additional reducible substituents such as acid, phenol, halogen, ester functions are reduced to the corresponding symmetrically substituted azo compounds by employing lead and ammonium formate in methanol or tetrahydrofuran or dioxane medium at reflux temperature. The conversion occurs without hydrogenolysis or hydrogenation of -Cl, -OCH3, -OC2H5, -CO2H, moieties, which are prone to undergo reduction. The conversion is reasonably fast, clean and high yielding.
Gowda, Shankare,Gowda, D. Channe
p. 460 - 462
(2007/10/03)

A simple and efficient method for the dehydrogenation of symmetric hydrazo compounds with NaNo2/NaHSO4·H2O/SiO2
In this paper, 18 symmetric hydrazo compounds undergo rapid oxidation to corresponding azo compounds using NaNO2/NaHSO4·H2O/SiO2 as a novel oxidising agent under mild conditions for the first time.
Li, Xiao-Chuan,Wang, Yu-Lu,Wang, Jin-Ye
p. 540 - 541
(2007/10/03)

A simple, efficient phase-transfer catalyzed method for preparing symmetrical azobenzenes from anilines
Using 2,4,6-tri-tert-butylphenol as catalyst, the phase transfer catalyzed oxidation of anilines to symmetrical azobenzenes is described for the first time. The ease of oxidation coincides with the Hammett substituent constants. This report offers an efficient and rapid method to prepare azobenzenes. A possible mechanism involving free radical oxidation is also suggested.
Wang,Wang,Li,Wang,Duan,Zhang
p. 545 - 547
(2007/10/03)

A convenient method for dehydrogenation of symmetric hydrazo compounds
A convenient method using FeCl3 as oxidant to dehydrogenate symmetric hydrazo compounds is reported for the first time. The method is superior to other known methods for dehydrogenating ArNHNHAr . It needs only cheap and less toxic reagents, mild conditions and short reaction time. Eight symmetric azo compounds are prepared in good yields.
Wang, Cai-Lan,Wang, Xiao-Xia,Wang, Xiao-Yang,Xiao, Jun-Ping,Wang, Yu-Lu
p. 3435 - 3438
(2007/10/03)

A new method for dehydrogenation of symmetric hydrazo compound
A new synthetic route with N-bromosuccinimide (NBS) and pyridine as oxidation system to dehydrogenate symmetric hydrazo compounds for preparing azo compounds is reported for the first time. Eight azo compounds are prepared in good yields under mild conditions and possible mechanism has been suggested.
Wang, Cailan,Wang, Xiaoxia,Wang, Yulu
p. 964 - 965
(2007/10/03)

Bis(1-benzyl-4-aza-1-azoniabicyclo[2.2.2]octane) peroxodisulfate: A mild and efficient oxidant for oxidation of thiols, sulfides and aromatic amines to the corresponding disulfides, sulfoxides and azo compounds
Bis(1-benzyl-4-aza-1-azoniabicyclo[2.2.2]octane) peroxodisulfate (BAABCPS) 1, readily prepared as orange solid from commercially available 1,4-diazabicyclo[2.2.2]octane (DABCO) and potassium peroxodisulfate converts thiols, sulfoxides and aromatic amines to the corresponding disulfides, sulfoxides and azo compounds respectively.
Hajipour,Mohammadpoor Baltork,Kianfar
p. 607 - 610
(2007/10/03)

The preparation of symmetrical azobenzenes from anilines by phase transfer catalyzed method
Used Galvinoxyl as catalyst, the phase transfer catalyzed method of oxidation of primary amines to symmetrical azobenzenes with a saturated solution of potassium ferricyanide in 2N aqueous potassium hydroxide and dichloromethane is described for the first time in this paper. The reaction has intimate relation with Hammett substituent constants. This report offers an efficient and rapid method to prepare azobenzenes and a possible mechanism is also suggested.
Wang, Xiao-Yang,Wang, Yu-Lu,Li, Jian-Ping,Duan, Zhi-Fang,Zhang, Zi-Yi
p. 2271 - 2276
(2007/10/03)

Phase transfer catalyzed method to prepare symmetrical azobenzenes from anilines
Using free radical 4-hydroxy-2,2,6,6-tetramethyl-l-piperidinyolxyl as catalyst, the phase transfer catalyzed method of oxidation of anilines to symmetrical azobenzenes with a saturated solution of potassium ferricyanide in 2N aqueous potassium hydroxide and dichloromethane is described for the first time. The reaction has an intimate relation with Hammett substituent constants. This report offers an efficient and rapid method to prepare azobenzenes, and a possible mechanism is also suggested.
Wang, Xiao-Yang,Wang, Yu-Lu,Wang, Cai-Lan,Li, Jian-Ping,Wang, Hong,Zhang, Zi-Yi
p. 971 - 974
(2007/10/03)

Benzyltriphenylphosphonium Peroxodisulfate (PhCH2PPh3)2S2O8: A Mild and Inexpensive Reagent for Efficient Oxidation of Organic Compounds under Nonaqueous and Aprotic Conditions
Benzyltriphenylphosphonium peroxodisulfate is an easily prepared and stable reagent. It could be used as an oxidant under aprotic and nonaqueous conditions in organic solvents. This reagent oxidizes different classes of alcohols to carbonyl compounds, thiols to disulfides, sulfides to sulfoxides, oximes to carbonyl compounds and aromatic amines to azo compounds efficiently. α-Hydroxy carboxylic acids and phenylacetic acids undergo oxidative decarboxylation to produce carbonyl compounds.
Mohammadpoor-Baltork, Iraj,Hajipour, Abdol Reza,Mohammadi, Hasan
p. 1649 - 1653
(2007/10/03)

An easy and efficient method for oxidation of alcohols and aromatic amines to the corresponding carbonyl and azo compounds under non-aqueous and neutral conditions
1-Benzyl-1-aza-4-azoniabicyclooctane periodate 1, readily prepared as an orange solid from commercially available 1,4-diazobicyclooctane, is useful for oxidation in anhydrous conditions.The reagent converts alcohols to die corresponding carbonyl compounds, α hydroxy ketones to diketones, and aromatic amines to azo compounds, in me excellent yields.The reagent ineffective in oxidising double bonds, aldehydes and ketones.
Hajipour, A. R.,Mahboobkhah, N.
p. 285 - 287
(2007/10/03)

n-Butyltriphenylphosphonium dichromate: an efficient and selective oxidizing agent
The preparation of n-butyltriphenylphosphonium dichromate is described. This reagent oxidizes alcohols to carbonyl compounds, thiols to disulfides and aromatic amines to azo compounds efficiently. Benzylic and allylic oximes are selectively oxidized to their corresponding carbonyl compounds in the presence of aluminium chloride.
Baltork, I. Mohammadpoor,Sadeghi, M. M.,Mahmoodi, N.,Kharamesh, B.
p. 438 - 441
(2007/10/03)

Pyrazine-based polymeric complex of oxodiperoxochromium (VI) compound as a new stable, mild, efficient and versatile oxidant in organic synthesis
The title compound was prepared and characterized by conventional methods. Its uses as stoichiometric oxidizing agent for a variety of organic compounds are described. With this reagent alcohols are converted to the corresponding carbonyl compounds. With 1,2-dioles C-C bond cleavage occurs. Decarboxylation of α-hydroxy acids proceeds quantitatively. Also thiols are converted to disulfides, hydroxy phenols to quinones, benzylamines to carbonyl compounds, tertiaryamines to the N-oxides, phosphines to phosphine oxides, sulfides to sulfoxides, and anthracene and phenanthrene to quinones. Deprotection of oximes and oxidative deprotection of silyl ethers proceed easily.
Tamami, Bahman,Yeganeh, Hamid
p. 7889 - 7896
(2007/10/03)

Reduction of Nitroarenes Using an Activated Catalyst Prepared by the Reduction of Nickel Nitrate with Excess Zinc in the Presence of Hydrazine Monohydrate
An activated catalyst prepared from a mixture of nickel nitrate hexahydrate with zinc in dry ethanol under reflux showed exceptional catalytic activity for the reduction of nitroarenes to the corresponding azoxy compounds exclusively in the presence of hydrazine monohydrate.However when nickel nitrate hexahydrate was replaced by nickel chloride dihydrate with zinc, only the aminoarenes were formed in high yields.With unactivated catalyst, the reduction reaction from a mixture of nitroarenes, nickel nitrate or chloride, excess zinc and hydrazine monohydrate gave the corresponding azo, azoxy and amino compounds in much lower yields.
Yun, Tae Ho,Park, Moon Keu,Han, Byung Hee
p. 2774 - 2788
(2007/10/02)

Barium Permanganate, Ba(MnO4)2, a versatile and mild oxidizing agent for use under aprotic and non-aqueous conditions
Barium Permanganate is an easily prepared, stable, and a versatile oxidation reagent. With this reagent different types of primary and secondary hydroxy compounds are converted to their carbonyl derivatives. Aldehydes could be transformed to their carboxylic acids. Benzylic chloride and bromides are converted to their aldehydes and carboxylic acids. Semicarbazide and 2,4-dinitrophenylhydrazine derivatives of benzylic carbonyl compounds undergo carbon-nitrogen bond cleavage selectively and yield the expected carbonyl compounds. p-Hydroquinone is converted to p-benzoguinone and aromatic amines to their azo compounds. Anthracene and phenanthrene produce their 9,10-quinones. Diphenyl acetylene and trans stilbene give benzil, and styrene produces benzaldehyde. Selective oxidations of secondary benzylic carbon-hydrogen bonds occur and the corres- ponding carbonyl compounds are produced in good yields.
Firouzabadi,Seddighi,Mottaghineiad,Bolourchian
p. 6869 - 6878
(2007/10/02)

Barium Ferrate Monohydrate BaFeO4.H2O, a Useful Oxidant for the Oxidation of Organic Compounds under Aprotic Conditions
Preparation of barium ferrate monohydrate with a slight modification is described.It is shown that this reagent is capable of oxidizing different organic compounds and could be used as a versatile reagent in organic synthesis.Primary and secondary alcohols are converted to their carbonyl compounds, α-hydroxy ketones to their diketones, and hydroquinones to their quinones.Aromatic amines are converted to their azo compounds, benzylamine to benzaldehyde, phenylhydrazones and oximes to their carbonyl compounds.Thiols are also converted to their disulfides in high yields.This reagent seems to be a non-toxic and a non-pollutant compound.
Firouzabadi, Habib,Mohajer, Daryoush,Entezari-Moghadam, Mohsen
p. 2185 - 2190
(2007/10/02)

Reduction of Aromatic Nitro Compounds and Thioketones with Sodium Telluride under Aprotic Conditions
Sodium telluride, prepared by heating tellurium and sodium hydride in a 1:2 molar ratio in dry N,N-dimethylformamide, reduces aromatic nitro compounds to azo compounds and thioketones to hydrocarbons under mild conditions.
Suzuki, Hitomi,Manabe, Hajime,Kawaguchi, Takashi,Inouye, Masahiko
p. 771 - 772
(2007/10/02)

The Temperature Dependent Photochemistry of 1-Naphtyl Azide
Photolysis of 1-naphtyl azide in the presence of diethylamine at -60 deg C or -78 deg C gives moderate yields of adducts derived from trapping of tricyclic azirines.These adducts are formed in very low yield on photolysis at room temperature.
Leyva, Elisa,Platz, Matthew S.
p. 11 - 14
(2007/10/02)

CHROMIUM(VI) BASED OXIDANTS-1. CHROMIUM PEROXIDE COMPLEXES AS VERSATILE, MILD, AND EFFICIENT OXIDANTS IN ORGANIC SYNTHESIS.
The preparation of 2,2'-bipyridylchromium peroxide, pyridinechromium peroxide, and chromium peroxide etherate is described. 2,2'-Bipyridylchromium peroxide converts different classes of alcohols to the carbonyl compounds.In 1,2-diols C-C bond cleavage occurs extensively. α-Hydroxy acids are decarboxylated quantitatively.Oximes are converted to their carbonyl compounds and thiols to their disulfides, dihydroxy phenolic compounds to quinones, benzyl amine to benzaldehyde, aromatic amines to their azo compounds, anthracene and phenanthrene to their quinones.Pyridinechromium peroxide converts different classes of alcohols efficiently to the carbonyl compounds, thiols to their disulfides, anthracene to anthraquinone.Mandelic and benzilic acids are decarboxylated very efficiently.Chromium peroxide etherate is an efficient reagent for the oxidation of different classes of alcohols to their carbonyl compounds.
Firouzabadi, H.,Iranpoor, N.,Kiaeezadeh, F.,Toofan, J.
p. 719 - 726
(2007/10/02)

PHOTOCHEMISTRY OF NAPHTHYL AND PYRENYL AZIDES: CHEMICAL PROPERTIES OF THE TRANSIENT INTERMEDIATES PROBED BY LASER SPECTROSCOPY
The photochemistry of 1-naphthyl azide, 2-naphthyl azide, 1-pyrenyl azide, and 2-pyrenyl azide was examined in inert (benzene) and reactive (diethylamine) solvents.These studies employ a combination of product analysis, low-temperature spectroscopy, and laser-flash photolysis to reveal the chemical and physical properties of the highly reactive, short-lived intermediates formed in these reactions.In all cases two intermediates account for the observations.One of these is the triplet nitrene and the other is a ground-state singlet transient identified as an azirine.The relationship between these intermediates controls the chemical outcome of the reaction.
Schrock, Alan A.,Schuster, Gary B.
p. 5234 - 5240
(2007/10/02)

BIS(2,2'-BIPYRIDYL)COPPER(II) PERMANGANATE (BBCP): A MILD AND VERSATILE OXIDANT IN ORGANIC SYNTHESIS
The preparation of bis(2,2'-bipyridyl)copper(II) permanganate (BBCP) is described.The reagent converts alcohols to the corresponding carbonyl compounds, α-hydroxy ketones to diketones, hydroquinone to p-benzoquinone, and compounds with benzylic double bonds to benzaldehyde in high yield.Benzophenone oxime, acetophenone oxime and various benzaldoximes are converted to the corresponding carbonyl compounds, aromatic amines to azo compounds, and benzylamine to benzaldehyde, usually in high yields, under mild condition.
Firouzabadi, H.,Sardarian, A. R.,Naderi, M.,Vessal, B.
p. 5001 - 5004
(2007/10/02)

BARIUM MANGANATE. A VERSATILE OXIDANT IN ORGANIC SYNTHESIS.
Preparation of barium manganate in large-scale is discussed. It is also shown that this reagent is capable of oxidizing organic substrates, converting alcohols to their corresponding carbonyl compounds, aromatic amines to their corresponding azo compounds, hydroquinone to p-benzoquinone, benzylamine to benzaldehyde, and triphenylphosphine to its oxide in good yields. Saturated hydrocarbons, unsaturated hydrocarbons, unsaturated ketones, and saturated amines are not affected by this reagent in a reasonable reaction time.
Firouzabadi,Mostafavipoor
p. 914 - 917
(2007/10/02)

BISPYRIDINESILVER PERMANGANATEMnO4: AN EFFICIENT OXIDIZING REAGENT FOR ORGANIC SUBSTRATES
Bispyridinesilver permanganate is an easily prepared crystalline relatively stable compound, soluble in organic solvents; its uses as an oxidizing agent of organic compounds in benzene are described.
Firouzabadi, H.,Vessal, B.,Naderi, M.
p. 1847 - 1850
(2007/10/02)

Thermal Decomposition of Aromatic Azides. Formation of Phenazines and Related Compounds
The decomposition of some aromatic azides yielding significant amounts of phenazines, and thereby constituting a potential synthetic procedure, is reported.
Nay, Barry,Scriven, Eric F. V.,Suschitzky, Hans,Thomas, Desmond R.
p. 611 - 613
(2007/10/02)