The catalytic reduction of acetylenes offers a good means of preparing olefins of known position of the double bond,2 but so far this work has been confined to the straight chain compounds, as acetylenes containing branches near the triple bond have been difficult to prepare, and but few of them are known. In order to extend the re- duction studies to this type of acetylene it there- fore was necessary first to develop a method of preparing such compounds. The ...
