The invention of new radical chain reactions. Part 12. Improved methods for the addition of carbon radicals to substituted allylic groups

Radical chain reactions are not often used in synthetic chemistry, although in fact such reactions can give good yields and show a selectivity that complements perfectly the ionic reactions that are in more general use. The design of radical chain reactions is discussed as well as a new method for obtaining carbon radicals in good yields under mild conditions.

Download Full-text

The invention of new radical chain reactions. Part VIII. Radical chemistry of thiohydroxamic esters; A new method for the generation of carbon radicals from carboxylic acids

Tetrahedron ◽

10.1016/s0040-4020(01)97173-x ◽

1985 ◽

Vol 41 (19) ◽

pp. 3901-3924 ◽

Cited By ~ 399

Author(s):

Derek H.R. Barton ◽

David Crich ◽

William B. Motherwell

Keyword(s):

Carboxylic Acids ◽

New Method ◽

Radical Chain ◽

Radical Chemistry ◽

Chain Reactions ◽

Carbon Radicals

Download Full-text

ChemInform Abstract: Concise Syntheses of L-Selenomethionine and of L-Selenocystine Using Radical Chain Reactions.

ChemInform ◽

10.1002/chin.198704230 ◽

1987 ◽

Vol 18 (4) ◽

Author(s):

D. H. R. BARTON ◽

D. BRIDON ◽

Y. HERVE ◽

P. POTIER ◽

J. THIERRY ◽

...

Keyword(s):

Radical Chain ◽

Chain Reactions

Download Full-text

The detection and inhibition of free radical chain reactions

Proceedings of the Royal Society of London Series A - Mathematical and Physical Sciences ◽

10.1098/rspa.1942.0037 ◽

1942 ◽

Vol 180 (982) ◽

pp. 237-256 ◽

Cited By ~ 14

Keyword(s):

Nitric Oxide ◽

Free Radical ◽

Chemical Analysis ◽

Diethyl Ether ◽

Pressure Increase ◽

Stationary States ◽

Decomposition Rates ◽

Radical Chain ◽

Chain Reactions ◽

Limiting Values

Part I. Comparison of nitric oxide and propylene as inhibitors The reduction by propylene of the rate of pressure increase in the decomposition of propaldehyde at 550° has been shown by chemical analysis to represent a true inhibition of the reaction, and not to be due n an important degree to an induced polymerization of the propylene. With propaldehyde and with diethyl ether the limiting values to which the decomposition rates are reduced by nitric oxide and by propylene respectively are the same, although much more propylene is required to produce a given degree of inhibition. From this it is concluded that the limiting rates are more probably those of independent non-chain processes, than those characteristic of stationary states where the inhibitor starts and stops chains with equal efficiency.

Download Full-text