Process for preparing 1-oxo-1,2,3,4,-tetrahydronaphthalene
OwnerMyoung J. Choi, Kyu W. Leeinventors
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Abstract
This invention relates to a process for preparing 1-oxo-1,2,3,4-tetrahydronaphtahalene(.alpha.-tetralone) in high yield and high selectivity from the liquid phase oxidation of tetralin in a bubble column reactor under several homogeneous and heterogeneous catalyst systems such as hexavalent chromium oxide, silica-supported chromium oxide,and insoluble material from the homogeneous oxidation mixture in N,N-dialkyl acid amides.
Claims5
A process for preparing 1-oxo-1,2,3,4,-tetrahydronaphthalene by oxidizing tetralin using a metal catalyst containing a chromium compound in N,N-dialkyl acid amide, comprising preparing a heterogeneous catalyst by dispersing silica-supported solid hexavalent chromium oxide catalyst in N,N-dialkyl acid amide, then oxidizing tetralin in a bubble column reactor in the presence of said heterogeneous catalyst.
Dependencies are inferred from the claim text.