Chemistry of acetylenic ethers XX. Note on the preparation of secondary ethoxyethynylcarbinols

Abstract
Secondary ethoxyethynylcarbinols cannot be obtained from aldehydes and ethoxyethynylmagnesium bromide. The substances can be prepared, however, by interaction of the aldehydes with ethoxyethynyl‐lithium. The secondary carbinols are rearranged to α,β‐unsaturated esters by acids.