Cycloaddition reactions of myrcene have been investigated, This 2-substituted 1, 3- butadiene is not so re-active as isoprene and failed to give adducts with phenylacetylene, Nt- butylpropiolamide, furan, isoprene, and benzoxazole. With cyclopentadiene, it reacted as a dienophile. With stronger dienophiles, adducts were formed in 10-60% yields along with undistillable by-products. The long unsaturated chain appears to contribute in lowering ...
