Classify the following dienes and polyenes as isolated, conjugated, cumulated, or some combination of these classifications.
(a) cycloocta-1,4-diene
(b) cycloocta-1,3-diene
(c) cyclodeca-1,2-diene
(d) cycloocta-1,3,5,7-tetraene
(e) cyclohexa-1,3,5-triene (benzene)
(f) penta-1,2,4-triene
Solution 24SP
(a) cycloocta-1,4-diene it is isolated diene
(b) cycloocta-1,3-diene it is conjugated diene
(c) cyclodeca-1,2-diene it is cumulated diene
(d) cycloocta-1,3,5,7-tetraene it is conjugated polyene
(e) cyclohexa-1,3,5-triene (benzene) it is conjugated polyene
(f) penta-1,2,4-triene it is combination of cumulated and conjugated polyene