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9-26 Using cyclooctyne as your starting material, show how you would synthesize the following compounds. (Once you have shown how to synthesize a compound, you may use it as the starting material in any later parts of this problem.) (a) cis-cyclooctene (b) cyclooctane (c) trans-1,2-dibromocyclooctane (d) cyclooctanone (e) 1,1-dibromocyclooctane (f) 3-bromocyclooctene (g) cyclooctane-1,2-dione (h)