✦ LIBER ✦

The Hydroperoxidation of Olefins by Singlet Oxygen. Validity of the zwitterionic peroxide model

✍ Scribed by Charles W. Jefford

Publisher: John Wiley and Sons
Year: 1981
Tongue: German
Weight: 299 KB
Volume: 64
Category: Article
ISSN: 0018-019X
DOI: 10.1002/hlca.19810640808

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The regioselectivity of the hydroperoxidation of tetrasubstituted olefins by singlet oxygen is rationalized in terms of the zwitterionic peroxide model.

📜 SIMILAR VOLUMES

Concerning zwitterionic peroxide or dira

Concerning zwitterionic peroxide or diradical intermediates in the singlet oxygen-olefin ene reaction

✍ Sr.M.Bellarmine Grdina; M. Grdina; M. Orfanopoulos; L.M. Stephenson 📂 Article 📅 1979 🏛 Elsevier Science 🌐 French ⚖ 183 KB

Arguments are presented which show that zwitterionic or diradical intermediates in the singlet oxygen-olefin ene reaction would lead to a prediction that geminal groups would be competitive in the C-H abstraction reaction. Isotope effect data available from previous studies clearly show that such is

The role of zwitterionic peroxides in co

The role of zwitterionic peroxides in controlling hydroperoxidation

✍ Charles W. Jefford 📂 Article 📅 1979 🏛 Elsevier Science 🌐 French ⚖ 176 KB

A remarkable directing effect has been recently detected in the reaction of methyl enol ethers of disubstituted acetaldehydes (I\_) with singlet oxygen.1~2 Hydroperoxidation takes place to greatly favour the product which arises by allylic shift towards the substituent cis to the methoxy group (2).3

Syn regioselectivity of the hydroperoxid

Syn regioselectivity of the hydroperoxidation of cyclo-alkenes with singlet oxygen

✍ Charles W. Jefford; Christian G. Rimbault 📂 Article 📅 1981 🏛 Elsevier Science 🌐 French ⚖ 221 KB

Characterization of the hydroperoxides d

Characterization of the hydroperoxides derived from singlet oxygen oxidation of ( + )-limonene

✍ B.C. Clark Jr.; B.B. Jones; G.A. Iacobucci 📂 Article 📅 1981 🏛 Elsevier Science 🌐 French ⚖ 407 KB

Mechanisms of the reactions of singlet m

Mechanisms of the reactions of singlet molecular oxygen with olefins

✍ Kizashi Yamaguchi; Takayuki Fueno; Hideo Fukutome 📂 Article 📅 1973 🏛 Elsevier Science 🌐 English ⚖ 438 KB

On the basis of the spin-and space-symmetry conservation criteria proposed previously, the cyclo~~~ition reactions of singlet molecular osy~en toward olehs and the thermal decomposition of dioxclane are characterized with respect to the mechanistic feature (conctrted, zwitterionic or biradical). The

Mechanistic implications of the stereoch

Mechanistic implications of the stereochemistry of singlet oxygen-olefin reactions

✍ Lawrence B. Harding; William A. Goddard III 📂 Article 📅 1978 🏛 Elsevier Science 🌐 French ⚖ 295 KB

We analyze the stereoselectivity of singlet oxygen-olefin reactions, concluding that a biradical peroxyl intermediate is involved and that experimental results are inconsistent with perepoxide intermediates. Recently Conia et al. ' have reported the results of a series of experiments on the reactio