An unknown compound is treated at 0o C with bromine in the dark (reaction 1). The predominant product of this reaction is treated with sodium ethoxide (reaction 2). The product of reaction 2 is reacted with HBr and peroxide (reaction 3). The product of reaction 3 is reacted with lithium acetylenide (reaction 4). This product is treated with lithium, then bromoethane (reaction 5). In reaction 6 the product of reaction 5 is reduced with hydrogen, using Pd on BaSO4 as the catalyst. This fina product is determined to be 6-methyl-cis-3-heptene. Name the original unknown compound and list the names of the major product of each reaction.