Journal ArticleDOI
Bimetallic Oxidation Catalysts: Oxidations with Tert Butylhydroperoxide Mediated by Bis-(Tributyltin Oxide) Dioxochromium (VI)
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TLDR
At 40-80°C, t.BuOOH in conjunction with catalytic amounts of (n.Bu3 SnO)2 CrO2 1 oxidizes benzylic alcohols, methylenes in α-position of aryl, ethylenic or acetylenic groups into ketones, anthracene into anthraquinone, adamantane into adamantan-1-ol and 2-one.About:
This article is published in Synthetic Communications.The article was published on 1989-07-01. It has received 38 citations till now. The article focuses on the topics: Aryl & Catalysis.read more
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Optimal TBHP Allylic Oxidation of Δ5-Steroids Catalyzed by Dirhodium Caprolactamate
Hojae Choi,Michael P. Doyle +1 more
TL;DR: Dirhodium caprolactamate is the most efficient catalyst for the oxidation of Delta5-steroids to 7-keto-Delta5-stersoids by 70% tert-butyl hydroperoxide in water (T-HYDRO).
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Propargylic Oxidations Catalyzed by Dirhodium Caprolactamate in Water: Efficient Access to α,β-Acetylenic Ketones
TL;DR: Dirhodium(II) caprolactamate with 70% w/w aqueous tert-butyl hydroperoxide (T-HYDRO) is a highly effective catalytic oxidation protocol for the selective C-H oxidation of alkynes to propargylic ketones.
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Optimization of the allylic oxidation in the synthesis of 7-keto-Δ5-steroidal substrates
TL;DR: A variety of delta5-steroids were converted into alpha, beta-unsaturated 7-ketones using a modification of the already known method of t-butyl hydroperoxide in the presence of copper iodide in acetonitrile, and high-yield conversions of steroidal 5,6-enes into the corresponding conjugated 7-ones in short reaction times are reported.
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Enantioselective copper-catalyzed allylic acetoxylation of cyclohexene
TL;DR: In this paper, an optically active center in an allylic position was introduced for cyclohexene and up to 30% enantiomeric excess was attained by this procedure.
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TBHP-promoted direct oxidation reaction of benzylic Csp3–H bonds to ketones
TL;DR: A metal-free oxidation system employing tert-butyl hydroperoxide (TBHP) has been developed for selective oxidation of structurally diverse benzylic sp3 C–H bonds, allowing for rapid generation of synthetically and biologically valued arylketones in good to excellent yields from readily available alkylarenes and diarylmethanes.
References
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Catalytic asymmetric epoxidation and kinetic resolution: modified procedures including in situ derivatization
TL;DR: The use of 3A or 4A molecular sieves substantially increases the scope of the titanium(IV)-catalyzed asymmetric epoxidation of primary allylic alcohols as mentioned in this paper.