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Cyclic peroxide

Later, fireflv oxyluciferin was successfully synthesi2ed (403. 408) and has been isolated and identified in firefly lanterns (luciola cruaciata) after the lanterns were treated with pyridine and acetic anhydride to prevent decomposition (409). In 1972, Suzuki and Goto firmly established that oxyluciferin is involved in the bioluminescence of firefly lanterns and in the chemiluminescence of firefly luciferin (403. 410).. A. mechanism involving a four-membered ring cyclic peroxide has been proposed for the reaction (406. 411). However, it was not confirmed by 0 -labelinE experiments (412). [Pg.421]

Cyclic Peroxides. CycHc diperoxides (4) and triperoxides (5) are soHds and the low molecular weight compounds are shock-sensitive and explosive (151). The melting points of some characteristic compounds of this type are given in Table 5. They can be reduced to carbonyl compounds and alcohols with zinc and alkaH, zinc and acetic acid, aluminum amalgam, Grignard reagents, and warm acidified iodides (44,122). They are more difficult to analyze by titration with acidified iodides than the acycHc peroxides and have been sucessfuUy analyzed by gas chromatography (112). [Pg.116]

Complex reactions occur on the autoxidation of pyrroles (see Section 3.05.1.4) predictably, susceptibility to autoxidation increases with increasing alkyl substitution, llie photosensitized reaction of pyrrole and oxygen yields 5-hydroxy-A -pyrrolin-2-one, probably by way of an intermediate cyclic peroxide (Scheme 28) (76JA802). [Pg.57]

Photochemical synthesis of sulphoxides was reported for the first time by Foote and Peters111 in 1971. They found that dialkyl sulphides undergo smoothly dye-photosensitized oxidation to give sulphoxides (equation 32). This oxidation reaction has been postulated to proceed through an intermediate adduct 63, which could be a zwitterionic peroxide, a diradical or cyclic peroxide, which then reacts with a second molecule of sulphide to give the sulphoxide (equation 33). [Pg.251]

Entries 15 to 18 are examples of use of iodocyclization in multistep syntheses. In Entry 15, iodolactonization was followed by elimination of HI from the bicyclic lactone. In Entry 16, a cyclic peroxide group remained unaffected by the standard iodolactonization and subsequent Bu3SnH reductive deiodination. (See Section 5.5 for... [Pg.319]

This cyclic peroxide, readily formed from succinate derivatives and peroxides, is claimed to be more stable than its molecular formula might indicate. It is, however, shock sensitive. [Pg.492]

See Other DIOXETANES, STRAINED-RING COMPOUNDS CYCLIC PEROXIDES... [Pg.543]

This dimeric ethylidene peroxide is an extremely shock-sensitive solid which explodes violently at the slightest touch. Extreme caution in handling is required. See other cyclic peroxides... [Pg.546]

Harada, N. et al., Chem. Lett. (Japan), 1973, 1173-1176 When free of solvent it decomposes explosively above — 10°C. See 6,6-Dimethylfulvene Air, or Ether See other cyclic peroxides... [Pg.986]


See other pages where Cyclic peroxide is mentioned: [Pg.269]    [Pg.316]    [Pg.57]    [Pg.58]    [Pg.235]    [Pg.677]    [Pg.1055]    [Pg.1147]    [Pg.1647]    [Pg.1672]    [Pg.1680]    [Pg.279]    [Pg.388]    [Pg.400]    [Pg.441]    [Pg.443]    [Pg.474]    [Pg.481]    [Pg.492]    [Pg.492]    [Pg.507]    [Pg.524]    [Pg.756]    [Pg.772]    [Pg.772]    [Pg.790]    [Pg.790]    [Pg.815]    [Pg.816]    [Pg.822]    [Pg.824]    [Pg.975]    [Pg.1007]   
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Allyl peroxides, cyclic

Aromatic cyclic peroxides, decomposition

Cyclic acetone peroxide explosives

Cyclic organic peroxides

Cyclic peroxides chemiluminescence

Cyclic peroxides diacyl

Cyclic peroxides dialkyl

Cyclic peroxides halogen-mediated

Cyclic peroxides oxidation

Cyclic peroxides structures

Cyclic peroxides synthesis

Cyclic peroxides using oxygen

Cyclic peroxides using ozone

Cyclic peroxides, formation

Cyclic peroxides, formation from

Cyclic silyl peroxides

Dimeric cyclic acetone peroxides

Fatty acids cyclic peroxides

From cyclic peroxides

Hydroperoxy cyclic peroxide

Hydroperoxy cyclic peroxide mechanism

Hydroperoxy cyclic peroxides, from

Ketone peroxides, cyclic

Norterpene cyclic peroxides

Other Cyclic Diacyl Peroxides. Phthaloyl Peroxide

Other Cyclic Peroxides

Peroxides cyclic monomers

Peroxides cyclic, preparation

Peroxides, cyclic 1,2-Dioxetanes)

Preparation of Cyclic Peroxides

Rubrene, cyclic peroxide

Schulz, M., Kirschke, K., Cyclic Peroxides

Syntheses of Cyclic Peroxides with Oxygen

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