New Type Of Oxidation Research Articles

ChemInform Abstract: A New Type of Oxidation—Reduction Condensation by the Combined Use of Phenyl Diphenylphosphinite and Oxidant

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

ChemInform Abstract: Conversion of Alcohols to Alkyl Aryl Sulfides by a New Type of Oxidation—Reduction Condensation Using Phenyl Diphenylphosphinite.

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

Conversion of Alcohols to Alkyl Aryl Sulfides by a New Type of Oxidation–Reduction Condensation Using Phenyl Diphenylphosphinite

Abstract Preparation of alkyl aryl sulfides from alcohols and arenethiols such as 2-sulfanyl-1,3-benzothiazole (BtzSH) is described by a new type of oxidation–reduction condensation using phenyl diphenylphosphinite (PhOPPh2) and benzoquinone derivatives or azide compounds. This reaction proceeds under mild and neutral conditions and is applicable to the thioetherification of various alcohols in which the chiral secondary and tertiary alcohols are converted into the corresponding chiral sulfides with almost complete inversion of configuration.

ChemInform Abstract: Stereospecific Synthesis of sec‐ and tert‐Alkyl Azides from Alcohols and Trimethylsilyl Azide by a New Type of Oxidation—Reduction Condensation Using Phenyl Diphenylphosphinite and Trimethylsilylmethyl Azide.

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

ChemInform Abstract: Stereospecific Synthesis of Alkyl Aryl Sulfides from Alcohols and 2‐Sulfanylbenzothiazole Using Aryl Diphenylphosphinite and Azide Compounds by a New Type of Oxidation—Reduction Condensation.

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

ChemInform Abstract: Preparation of Alkyl Aryl Sulfides from Alcohols and 2‐Sulfanylbenzothiazole by a New Type of Oxidation—Reduction Condensation Using Aryl Diphenylphosphinite and Benzoquinone Derivatives.

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

Stereospecific Synthesis of sec- and tert-Alkyl Azides from Alcohols and Trimethylsilyl Azide by a New Type of Oxidation–Reduction Condensation Using Phenyl Diphenylphosphinite and Trimethylsilylmethyl Azide

Abstract A novel method for the preparation of alkyl azides from alcohols and trimethylsilyl azide by a new type of oxidation–reduction condensation using phenyl diphenylphosphinite and trimethylsilylmethyl azide is described. Chiral secondary and tertiary alcohols are converted into the corresponding chiral azides with almost complete inversion of configuration under mild and neutral conditions.

Stereospecific Synthesis of Alkyl Aryl Sulfides from Alcohols and 2-Sulfanylbenzothiazole Using Aryl Diphenylphosphinite and Azide Compounds by a New Type of Oxidation–Reduction Condensation

Abstract The preparation of alkyl aryl sulfides from alcohols and 2-sulfanylbenzothiazole using phenyl diphenylphosphinite and azide compounds by a new type of oxidation–reduction condensation is described. The chiral secondary and tertiary alcohols are converted into the corresponding chiral sulfides with almost complete inversion of configurations under mild and neutral conditions.

Preparation of Alkyl Aryl Sulfides from Alcohols and 2-Sulfanylbenzothiazole by a New Type of Oxidation–Reduction Condensation Using Aryl Diphenylphosphinite and Benzoquinone Derivatives

Abstract A method for the preparation of alkyl aryl sulfides from alcohols and 2-sulfanylbenzothiazole by a new type of oxidation–reduction condensation using phenyl diphenylphosphinite and 2,6-dimethoxy-1,4-benzoquinone is described. In this reaction, the chiral alcohols are converted into the corresponding chiral sulfides with almost complete inversion of configurations under mild and neutral conditions.

Cyanation of Alcohols with Diethyl Cyanophosphonate and 2,6‐Dimethyl‐1,4‐benzoquinone by a New Type of Oxidation—Reduction Condensation.

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.

Cyanation of Alcohols with Diethyl Cyanophosphonate and 2,6-Dimethyl-1,4-benzoquinone by a New Type of Oxidation–Reduction Condensation

Abstract Cyanation of various alcohols by a new type of oxidation–reduction condensation is described. Primary alkyl diphenylphosphinites, 2,6-dimethyl-1,4-benzoquinone (DMBQ), and diethyl cyanophosphonate gave the corresponding nitriles in high yields. During the above experiment on cyanation of 4-phenylbutan-2-ol, the unexpected formation of a mixture of nitrile and isocyanide was observed. After careful examination of the reaction conditions, selective synthesis of isocyanides from secondary alcohols was successfully accomplished by the use of zinc oxide (ZnO) as an additive. Reaction of tertiary alcohols provided the corresponding isocyanides exclusively in the absence of an additive. Cyanation of optically active alcohols was tried in order to clarify the stereochemistry of this reaction, and the reaction was thus proved to proceed with the inversion of configuration.

Selective Synthesis of Isocyanides from Secondary Alcohols by a New Type of Oxidation—Reduction Condensation.

AbstractFor Abstract see ChemInform Abstract in Full Text.

Selective Synthesis of Isocyanides from Secondary Alcohols by a New Type of Oxidation–Reduction Condensation

Abstract Selective synthesis of isocyanides from secondary alcohols via alkyl diphenylphosphinites is established by a new type of oxidation–reduction condensation in controlling the ambident reactivity of cyanide anion. In the presence of ZnO, isocyanides are obtained exclusively in moderate to high yields.

Efficient Method for the Preparation of Primary, Inverted Secondary and Tertiary Alkyl Carboxylates from Alcohols and Carboxylic Acids by a New Type of Oxidation—Reduction Condensation Using Simple 1,4‐Benzoquinone.

AbstractFor Abstract see ChemInform Abstract in Full Text.

A Convenient Method for the Preparation of Inverted tert‐Alkyl Carboxylates from Chiral tert‐Alcohols by a New Type of Oxidation—Reduction Condensation Using 2,6‐Dimethyl‐1,4‐benzoquinone.

AbstractFor Abstract see ChemInform Abstract in Full Text.

Efficient Method for the Preparation of Primary, Inverted Secondary and Tertiary Alkyl Carboxylates from Alcohols and Carboxylic Acids by a New Type of Oxidation–Reduction Condensation Using Simple 1,4-Benzoquinone

Abstract A new type of oxidation–reduction condensation using in situ formed alkoxydiphenylphosphines (i.e., diphenylphosphinite esters), easily available 1,4-benzoquionone and carboxylic acids provides a new and efficient method for the preparation of alkyl carboxylates from the corresponding alcohols under mild and neutral conditions. Further, the yields of the corresponding inverted carboxylates were equally high in the case of chiral secondary or tertiary alcohols.

A Convenient Method for the Preparation of Symmetrical or Unsymmetrical Ethers by The Coupling of Two Alcohols via A New Type of Oxidation–reduction Condensation Using Tetrafluoro-1,4-benzoquinone

Abstract A new type of oxidation–reduction condensation by using tetrafluoro-1,4-benzoquinone (fluoranil), alcohols and alkoxydiphenylphosphines, in situ formed from nBuLi-treated alcohols and chlorodiphenylphosphine, proceeded smoothly to afford the corresponding symmetrical or unsymmetrical ethers in good to high yields.

A convenient method for the preparation of inverted tert-alkyl carboxylates from chiral tert-alcohols by a new type of oxidation-reduction condensation using 2,6-dimethyl-1,4-benzoquinone.

Oxidation-reduction condensation using in situ-formed alkoxydiphenylphosphines, 2,6-dimethyl-1,4-benzoquinone, and carboxylic acids provided a new and efficient method for the preparation of inverted tert-alkyl carboxylates from various chiral tertiary alcohols.

Oxyhydrative scission of olefins: I. Oxidation of lower olefins

A new type of oxidation of C 2-C 5 olefins leading to the oxidative scissions of carbon skeletons was examined on the V 2O 5-MoO 3 catalyst in the presence of water vapor. Acetic acid and acetaldehyde and acetic acid and propionic acid were selectively formed from C 2-C 4 and C 5 olefins, respectively. The reaction was found to go through consecutive multisteps. Taking into account the similarities between the present oxidation and the oxyhydration reaction, it was concluded that the reaction comprises the oxyhydration of olefins to form ketones and the subsequent oxidative scission of the ketones to acids and aldehydes, thus best being named “oxyhydrative scission.” The reaction scheme was discussed in comparison with mechanisms for other types of olefin oxidation reactions.

Oxygen‐transfer resins, a new type of oxidation–reduction polymers

AbstractBifunctional cation exchangers with carboxylic and sulfonic acid groups can be oxidized with aqueous hydrogen peroxide which converts the carboxylic to percarboxylic acid groups. The oxidized resins can be used to hydroxylate compounds with olefinic double bonds to form α‐glycols. The resins thus transfer active oxygen from a peroxide to an unsaturated substrate. Oxidation and reduction of the resins is reversible.