Antonelli, Terry, Stout & Kraus, LLP
Process for production of polyalkyl-substituted aromatic aldehyde
In the process of the present invention, a polyalkyl-substituted aromatic aldehyde is produced by the formylation of a corresponding polyalkyl-substituted aromatic compound with carbon monoxide in the presence of hydrogen fluoride/boron trifluoride catalyst. By limiting the amount of hydrogen fluoride to a specific range, the formylation rapidly proceeds under mild conditions without causing the precipitation of solid matters even when the starting polyalkyl-substituted aromatic compound has alkyl groups on both the carbon atoms adjacent to the site to be formylated.
Mitsubishi Gas Chemical Company, Inc.
C
C07C
inventional
Kinji Tsuyoshi Mitsuharu
Kato Hatakeyama Kitamura