Способ получения 2-трет-бутил-4-метилфенола или 2-трет-бутил-4-этилфенола
Patents
Language: |
Русский |
Type: |
Invention |
Number |
SU 1162780 A1 |
Request number: |
3655550/23-04 |
Request date: |
Oct 24, 1983 |
patent.field.start_date: |
|
Registration date: |
Jun 23, 1985 |
patent.field.request_publication_date: |
|
Authors |
Куликов С.М.
,
Крысин А.П.
,
Кожевников И.В.
|
Affiliations |
1 |
Boreskov Institute of Catalysis SB RAS
|
2 |
Novosibirsk National Research University
|
3 |
Vorozhtzov Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Science
|
|
The title phenols (I; R = Me, Et; R1 = H) are prepd. by catalytic dealkylation of I (R1 = Me3C at 5- or 6-position) at 140-150°. The yield is increased by using 0.3-10 wt. % heteropoly acid H8-x+nXM12-nVnO40 (X = Si, P; M = Mo, W; n = 0, 1; x = valence of X) catalysts.