547.372'241 547.241 CHEMISTRY OF ACETYLENIC ETHERS LXIl Tertiary Phosphines with an Acetylene-Phosphorus Bond BY W. VOSKUIL AND J. F. ARENS (Laboratory of Organic Chemistry of the University of Utrecht, 79 Croesestraat, Utrecht) A number of dialkylphosphinoethynes R2PCz CH were prepared from chlorodialkylphosphines and ethynylmagnesium bromide. With di-n-butyl- phosphinoethyne the following experiments were performed. From the lithium ...
