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Tetramethylene formal

Poly(tetramethylene oxide) Poly(ethylene formal) Poly(tetramethylene formal) Polyacetaldehyde Poly(propylene oxide)... [Pg.925]

Because both 1-methylenespiropentane (89) and 1-cyclo-propylidenecyclopropane (95) include methylenecyclopropane moiety in their structures, the methylenecyclopropane-type reversible interconversion between 89 and 95 is expected to occur upon pyrolysis, involving a trimethylenemethane biradical intermediate. However, such a rearrangement formally does not take place, though 95 rearranges to 89. Instead, on pyrolysis at 320 C, 89 rearranges to dimethylenecyclobutanes (91 and 93) through the tetramethylene-ethane biradical 90 and the vinylic-allylic biradical 92, respectively. Presumably, biradical 94 formed by C-2-C-5 bond fission... [Pg.33]

See other pages where Tetramethylene formal is mentioned: [Pg.162]    [Pg.162]    [Pg.927]    [Pg.102]    [Pg.162]    [Pg.162]    [Pg.927]    [Pg.102]    [Pg.400]    [Pg.2163]    [Pg.68]    [Pg.68]    [Pg.588]    [Pg.2162]    [Pg.196]    [Pg.172]   
See also in sourсe #XX -- [ Pg.102 ]



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Tetramethylene

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