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US 9,469,621 B2Granted
Method for producing multisubstituted biphenyl compound and solid catalyst to be used therein
AssigneesKyushu University, National University Corporation, Ube Industries, Ltd.
InventorsTamao Ishida, Makoto Tokunaga, Akiyuki Hamasaki, Syohei Aikawa, Yoshiyuki Mise, Tetsuro Tsuji, Yasushi Yamamoto, Mitsuru Miyasaka
Life of this patent
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Abstract
A method for producing a multisubstituted biphenyl compound is represented by the following formula (2), including a step of coupling a substituted benzene compound represented by the following formula (1) in the presence of a solid catalyst with gold immobilized onto a support.
Claims11
A method for producing a multisubstituted biphenyl compound represented by the following formula (2), comprising:
- a step of coupling a substituted benzene compound represented by the following formula (1) in the presence of a solid catalyst with gold immobilized onto a support, wherein the support is a metal oxide,
- wherein R represents an alkyl group, an alkoxy group, a hydroxy group, or a carboxyl group which may be esterified, and n represents an integer of 0 to 3;
- when n is any integer of 1 to 3, a plurality of R may be the same or different from each other;
- and when n is any integer of 1 to 3 and both of two R bonding to adjacent carbon atoms are the carboxyl groups, these carboxyl groups may bond to each other to form an anhydride, and
- wherein R represents an alkyl group, an alkoxy group, a hydroxy group, or a carboxyl group which may be esterified, and n represents an integer of 0 to 3;
- a plurality of n and R may be the same or different from each other;
- and when n is any integer of 1 to 3 and both of two R bonding to adjacent carbon atoms are the carboxyl groups, these carboxyl groups may bond to each other to form an anhydride.
4 more elements
Dependencies are inferred from the claim text.