Global Patent Index - EP 0970045 A1

EP 0970045 A1 20000112 - PREPARATION OF 4-CYANO-4'-HYDROXY BIPHENYL

Title (en)

PREPARATION OF 4-CYANO-4'-HYDROXY BIPHENYL

Title (de)

HERSTELLUNG VON 4-CYANO-4'-HYDROXYBIPHENYL

Title (fr)

PREPARATION DU 4-CYANO-4'-HYDROXY BIPHENYLE

Publication

EP 0970045 A1 20000112 (FR)

Application

EP 98909542 A 19980216

Priority

  • FR 9800290 W 19980216
  • FR 9701862 A 19970218

Abstract (en)

[origin: FR2759697A1] The invention concerns a method for preparing 4-cyano-4'-hydroxy biphenyl, said method consisting in the following steps: protecting the hydroxy group of 4-phenyl-phenol, acylation of the protected 4-phenyl-phenol group, transforming the resulting ketone into an acid, amidation of the resulting acid, dehydrating the resulting amide and deprotecting the hydroxy group.

IPC 1-7

C07C 255/53; C07C 253/20

IPC 8 full level

C07C 253/20 (2006.01); C07C 255/53 (2006.01)

CPC (source: EP)

C07C 253/20 (2013.01)

C-Set (source: EP)

C07C 253/20 + C07C 255/53

Citation (search report)

See references of WO 9837060A1

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE

DOCDB simple family (publication)

FR 2759697 A1 19980821; FR 2759697 B1 19990416; AU 6404598 A 19980909; CA 2280954 A1 19980827; CN 1248241 A 20000322; EP 0970045 A1 20000112; JP 2001511817 A 20010814; KR 20000071139 A 20001125; NO 993951 D0 19990817; NO 993951 L 19990817; NZ 337647 A 20000228; US 6160157 A 20001212; WO 9837060 A1 19980827

DOCDB simple family (application)

FR 9701862 A 19970218; AU 6404598 A 19980216; CA 2280954 A 19980216; CN 98802661 A 19980216; EP 98909542 A 19980216; FR 9800290 W 19980216; JP 53631498 A 19980216; KR 19997007428 A 19990817; NO 993951 A 19990817; NZ 33764798 A 19980216; US 35591099 A 19990805