Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent
1989-03-29
1990-08-21
Lone, Werren B.
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
568785, C07C 3714
Patent
active
049508105
ABSTRACT:
A selective process for preparing a 2,4- or 3,6-di-substituted phenol compound which comprises reacting an olefin compound of the formula: ##STR1## wherein R.sup.1 is hydrogen, halogen, alkyl, halogen substituted alkyl, aryl, halogen substituted-aryl or alkyl substituted-aryl; and R.sup.2, R.sup.3 and R.sup.4 are the same or different and each is hydrogen, halogen, alkyl, halogen substituted-alkyl or aralkyl; with a phenol compound of the formula: ##STR2## wherein R.sup.5 is hydrogen, hydroxy, halogen, alkyl, halogen substituted-alkyl, alkoxy or --C(R.sup.6)(R.sup.7)CH(R.sup.8)(R.sup.9) (wherein R.sup.6 is hydrogen, halogen, alkyl, halogen substituted-alkyl, aryl, halogen substituted-aryl or alkyl substituted-aryl; and R.sup.7, R.sup.8 and R.sup.9 are the same or different and each is hydrogen, halogen, alkyl, halogen substituted-alkyl or aralkyl), in the presence of a phosphorus compound and a carboxylic acid compound as catalysts.
The methods of the present invention, which is used a phosphorus compound and a carboxylic acid compound as catalysts, are enable to make the separation procedures easy, make the reaction process and time short, not to produce any colored resultant product, and reduce that cost in manufacturing procedures.
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Ike Tetsuji
Kinishi Ryoichi
Wakamatsu Shuichi
Lone Werren B.
Yoshitomi Pharmaceutical Industries Ltd.
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