THE FREE-RADICAL CLEAVAGE OF PEROXYBENZOIC ACID

1960 ◽  
Vol 64 (8) ◽  
pp. 1086-1087 ◽  
Author(s):  
Stephen R. Cohen ◽  
John O. Edwards
Keyword(s):  
Free Radical ◽  
Radical Cleavage

Transition-metal-free radical cleavage of a hydrazonyl N–S bond: tosyl radical-initiated cascade C(sp3)–OAr cleavage, sulfonyl rearrangement and atropisomeric cyclopropanation

2018 ◽  
Vol 5 (24) ◽  
pp. 3567-3573 ◽  
Author(s):  
Yao-Zhong Chen ◽  
Teng Liu ◽  
Jie Zhu ◽  
Hui Zhang ◽  
Lei Wu
Keyword(s):  
Free Radical ◽  
Transition Metal ◽  
Potassium Carbonate ◽  
Coupling Reaction ◽  
Metal Free ◽  
Radical Cleavage

Combination of 1,10-phenanthroline and potassium carbonate enables a radical cleavage of a hydrazonyl N–S bond, allowing a coupling reaction of N-tosylhydrazone and phosphinyl allene via cascade C–O cleavage, sulfonyl rearrangement and atropisomeric cyclopropanation.

Thermo‐Induced Free‐Radical Cleavage of Enaminone C=C Double Bond for α‐Acyloxyl Ketone Synthesis

2019 ◽  
Vol 8 (8) ◽  
pp. 1484-1489 ◽  
Author(s):  
Lihong Tian ◽  
Yanhui Guo ◽  
Li Wei ◽  
Jie‐Ping Wan ◽  
Shouri Sheng
Keyword(s):  
Free Radical ◽  
Double Bond ◽  
Radical Cleavage

Free-Radical Cleavage of β-Hydroxy Thio Ethers to Ketones and Mercaptans1

1966 ◽  
Vol 31 (10) ◽  
pp. 3366-3369 ◽  
Author(s):  
Earl S. Huyser ◽  
Richard M. Kellogg
Keyword(s):  
Free Radical ◽  
Radical Cleavage

Potentiation of bromotrichloromethane hepatotoxicity in male rats exposed to 10 ppm dietary chlordecone: Electron Microscopic and biochemical study

1990 ◽  
Vol 48 (3) ◽  
pp. 284-285
Author(s):  
O. M. Faroon ◽  
R. W. Henry ◽  
M. G. Soni ◽  
H. M. Mehendale
Keyword(s):  
Free Radical ◽  
Biochemical Study ◽  
Prior Exposure ◽  
Male Rats ◽  
Cellular Injury ◽  
Low Doses ◽  
Mixed Function Oxidase ◽  
Electron Microscopic ◽  
Potent Inducer ◽  
Cellular Energy

Previous work has shown that mirex undergoes photolytic dechlorination to chlordecone (CD) (KeponeR) in the environment. Much work has shown that prior exposure to nontoxic levels of CD causes potentiation of hepatotoxicity and lethality of CCl4, BrCCl3 and other halomethane compounds. Potentiation of bromotrichloromethane hepatotoxicity has been associated with compounds that stimulate the activity of hepatic mixed-function oxidase (MFO). An increase in the metabolism of halomethane by the MFO to a free radical initiates peroxidative decomposition of membranal lipids ending in massive cellular injury. However, not all MFO inducers potentiate BrCCl3 hepatotoxicity. Potentiation by much larger doses of phenobarbital is minimal and th at by a more potent inducer of MFO, mirex, is negligible at low doses. We suggest that the CD and bromotrichloromethane interaction results in a depletion of cellular energy and thereby reducing the cellular ability to undergo mitosis.

Deaminative carbonylative thioesterification of activated alkylamines with thiophenols under transition-metal-free conditions

2021 ◽  
Author(s):  
Fengqian Zhao ◽  
Xiao-Feng Wu
Keyword(s):  
Free Radical ◽  
Transition Metal ◽  
Metal Free

A transition-metal-free radical carbonylation of activated alkylamines with thiophenols has been successfully developed. Various thioesters were selectively produced with moderate to good yields.

1120: Citrate and Vitamin E Blunt the SWL-Induced Free Radical Surge in an In-Vitro MDCK Cell Culture Model

2004 ◽  
Vol 171 (4S) ◽  
pp. 295-295
Author(s):  
Fernando C. Delvecchio ◽  
Ricardo M. Brizuela ◽  
Karen J. Byer ◽  
W. Patrick Springhart ◽  
Saeed R. Khan ◽  
...  
Keyword(s):  
Cell Culture ◽  
Free Radical ◽  
Vitamin E ◽  
Mdck Cell ◽  
Cell Culture Model ◽  
Culture Model

Prognostic significance of serum free radical level in head injury

2005 ◽  
Vol 2 (2) ◽  
pp. 107-109
Author(s):  
A. Mishra ◽  
M.F. Huda ◽  
V.P. Singh ◽  
S. Mohanty ◽  
A. Sodhi
Keyword(s):  
Free Radical ◽  
Head Injury ◽  
Prognostic Significance ◽  
Serum Free
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