Method of isomerization of dimethylnaphthalenes

Details Method of isomerization of dimethylnaphthalenes Method of isomerization of dimethylnaphthalenes

1992-03-16

1993-10-19

Pal, Asok

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By isomerization

585478, 585479, 502224, C07C 522

Patent

active

052547698

ABSTRACT:
Dimethylnaphthalenes are isomerized into 2,6-dimethylnaphthalene by utilizing hydrogen fluoride as a catalyst and straight chain saturated aliphatic hydrocarbons having carbon atoms in the range from 5 to 12 as the solvent. Isomerization to other undesirable isomers such as 2,7-dimethylnaphthalene and side reactions such as disproportionation are suppressed and a very high degree of the isomerization to 2,6-DMN can be attained.

REFERENCES:
patent: 2527825 (1950-10-01), Kemp
patent: 3109036 (1963-10-01), Suld et al.

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