Preparation of 4-ethynylbenzaldehyde_Kain Industrial Additive

Background[1] 4-Ethynylbenzaldehyde is an organic synthesis intermediate and pharmaceutical intermediate. It can be used in organic synthesis reactions and pharmaceutical research and development processes in laboratory research and development. Preparation[1-2] Method 1: 4-ethynylbenzaldehyde is prepared as follows: Step 1, in DMSO solvent system, react carbazole, hexyl bromide and 50% sodium hydroxide aqueous solution at a…