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Radicals Containing a Five-Membered Heterocycle

Reviews have appeared in Italian and in English of radicals containing the thiophene ring system they deal with n- and T-radicals, respectively. [Pg.69]

A. Radicals Containing a Five-Membered Heterocycle 1. Radicals Containing a Selenophene Ring... [Pg.107]

Dipole moments of the chalcones containing heterocyclic radicals confirm the electron-donor properties of the five-membered heterocycles in their ground states. The moments in these compounds are dominated by the carbonyl polarization which is stronger the more electron-donating is the radical bonded to the carbonyl. Thus, all the physical data on the chalcone analogs suggest that the electron-donating effect of the heteroaromatic radicals decreases in the order a-selenienyl > a-thienyl > a-furyl.100... [Pg.29]

The third contribution in our volume reviews the interesting classes of five-membered heterocyclic rings containing two sulfur and two nitrogen atoms, both as anionic and radical species. This area lies on the border of organic and inorganic chemistry since its inception, in 1977, it made great strides as are now documented by J. M. Rawson, A. J. Banister, and I. Lavender of the University of Durham, UK. [Pg.429]

See other pages where Radicals Containing a Five-Membered Heterocycle is mentioned: [Pg.33]    [Pg.69]    [Pg.33]    [Pg.69]    [Pg.107]    [Pg.112]    [Pg.33]    [Pg.69]    [Pg.33]    [Pg.69]    [Pg.107]    [Pg.112]    [Pg.343]    [Pg.744]    [Pg.14]    [Pg.37]    [Pg.818]    [Pg.59]    [Pg.174]    [Pg.294]    [Pg.252]    [Pg.213]    [Pg.240]    [Pg.145]    [Pg.49]    [Pg.145]    [Pg.683]    [Pg.293]    [Pg.293]    [Pg.414]   


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Five-Membered Heterocycled

Five-membered heterocycles

Five-membered heterocyclics

Heterocycles containing

Heterocyclic radicals

Radicals heterocycles

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