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Bulky groups, stabilization from

The interaction between two adjacent bulky groups can depend on steric factors which are not necessarily related to the stability of the radicals produced on homolysis. It is estimated from linear free energy relationships that only 65-70% of the ground-state strain energy is relieved in the transition state for homolysis of a bond between two quaternary centres (Ruchardt and Beckhaus, 1980, 1986). Thus steric constraints to delocalization in the radicals produced may persist. A pertinent example is 2,3-di(l-adamantyl)-2,3-dimethylbutane [123] which has four such centres, linked by the long C-C bonds characteristic of this sort of structure. The strongest... [Pg.171]

See other pages where Bulky groups, stabilization from is mentioned: [Pg.540]    [Pg.206]    [Pg.59]    [Pg.144]    [Pg.291]    [Pg.107]    [Pg.16]    [Pg.218]    [Pg.347]    [Pg.53]    [Pg.122]    [Pg.19]    [Pg.361]    [Pg.36]    [Pg.597]    [Pg.70]    [Pg.59]    [Pg.381]    [Pg.439]    [Pg.39]    [Pg.540]    [Pg.84]    [Pg.337]    [Pg.886]    [Pg.221]    [Pg.1010]    [Pg.58]    [Pg.68]    [Pg.44]    [Pg.203]    [Pg.131]    [Pg.371]    [Pg.95]    [Pg.15]    [Pg.12]    [Pg.224]    [Pg.467]    [Pg.468]    [Pg.4470]    [Pg.5877]    [Pg.368]    [Pg.3]    [Pg.449]    [Pg.131]    [Pg.12]    [Pg.349]    [Pg.360]    [Pg.1470]   
See also in sourсe #XX -- [ Pg.60 ]

See also in sourсe #XX -- [ Pg.73 , Pg.76 , Pg.167 ]



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Bulkiness

Bulky groups

Groups from

Stability groups

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